MaintenanceSolution.sql

/*

SQL Server Maintenance Solution - SQL Server 2008, SQL Server 2008 R2, SQL Server 2012, SQL Server 2014, SQL Server 2016, SQL Server 2017, SQL Server 2019, and SQL Server 2022

Backup: https://ola.hallengren.com/sql-server-backup.html
Integrity Check: https://ola.hallengren.com/sql-server-integrity-check.html
Index and Statistics Maintenance: https://ola.hallengren.com/sql-server-index-and-statistics-maintenance.html

License: https://ola.hallengren.com/license.html

GitHub: https://github.com/olahallengren/sql-server-maintenance-solution

Version: 2025-01-28 20:19:42

You can contact me by e-mail at ola@hallengren.com.

Ola Hallengren
https://ola.hallengren.com

*/

USE [master] -- Specify the database in which the objects will be created.

SET NOCOUNT ON

DECLARE @CreateJobs nvarchar(max)          = 'Y'         -- Specify whether jobs should be created.
DECLARE @BackupDirectory nvarchar(max)     = NULL        -- Specify the backup root directory. If no directory is specified, the default backup directory is used.
DECLARE @BackupURL nvarchar(max)           = NULL        -- Specify the backup root URL.
DECLARE @CleanupTime int                   = NULL        -- Time in hours, after which backup files are deleted. If no time is specified, then no backup files are deleted.
DECLARE @OutputFileDirectory nvarchar(max) = NULL        -- Specify the output file directory. If no directory is specified, then the SQL Server error log directory is used.
DECLARE @LogToTable nvarchar(max)          = 'Y'         -- Log commands to a table.

DECLARE @ErrorMessage nvarchar(max)

IF IS_SRVROLEMEMBER('sysadmin') = 0 AND NOT (DB_ID('rdsadmin') IS NOT NULL AND SUSER_SNAME(0x01) = 'rdsa')
BEGIN
  SET @ErrorMessage = 'You need to be a member of the SysAdmin server role to install the SQL Server Maintenance Solution.'
  RAISERROR(@ErrorMessage,16,1) WITH NOWAIT
END

IF NOT (SELECT [compatibility_level] FROM sys.databases WHERE database_id = DB_ID()) >= 90
BEGIN
  SET @ErrorMessage = 'The database ' + QUOTENAME(DB_NAME(DB_ID())) + ' has to be in compatibility level 90 or higher.'
  RAISERROR(@ErrorMessage,16,1) WITH NOWAIT
END

IF @BackupDirectory IS NOT NULL AND @BackupURL IS NOT NULL
BEGIN
  SET @ErrorMessage = 'Only one of the variables @BackupDirectory and @BackupURL can be set.'
  RAISERROR(@ErrorMessage,16,1) WITH NOWAIT
END

IF @BackupURL IS NOT NULL AND @CleanupTime IS NOT NULL
BEGIN
  SET @ErrorMessage = 'The variable @CleanupTime is not supported with backup to URL.'
  RAISERROR(@ErrorMessage,16,1) WITH NOWAIT
END

IF OBJECT_ID('tempdb..#Config') IS NOT NULL DROP TABLE #Config

CREATE TABLE #Config ([Name] nvarchar(max),
                      [Value] nvarchar(max))

INSERT INTO #Config ([Name], [Value]) VALUES('CreateJobs', @CreateJobs)
INSERT INTO #Config ([Name], [Value]) VALUES('BackupDirectory', @BackupDirectory)
INSERT INTO #Config ([Name], [Value]) VALUES('BackupURL', @BackupURL)
INSERT INTO #Config ([Name], [Value]) VALUES('CleanupTime', @CleanupTime)
INSERT INTO #Config ([Name], [Value]) VALUES('OutputFileDirectory', @OutputFileDirectory)
INSERT INTO #Config ([Name], [Value]) VALUES('LogToTable', @LogToTable)
INSERT INTO #Config ([Name], [Value]) VALUES('DatabaseName', DB_NAME(DB_ID()))
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[CommandLog]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[CommandLog](
  [ID] [int] IDENTITY(1,1) NOT NULL,
  [DatabaseName] [sysname] NULL,
  [SchemaName] [sysname] NULL,
  [ObjectName] [sysname] NULL,
  [ObjectType] [char](2) NULL,
  [IndexName] [sysname] NULL,
  [IndexType] [tinyint] NULL,
  [StatisticsName] [sysname] NULL,
  [PartitionNumber] [int] NULL,
  [ExtendedInfo] [xml] NULL,
  [Command] [nvarchar](max) NOT NULL,
  [CommandType] [nvarchar](60) NOT NULL,
  [StartTime] [datetime2](7) NOT NULL,
  [EndTime] [datetime2](7) NULL,
  [ErrorNumber] [int] NULL,
  [ErrorMessage] [nvarchar](max) NULL,
 CONSTRAINT [PK_CommandLog] PRIMARY KEY CLUSTERED
(
  [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
)
END
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[CommandExecute]') AND type in (N'P', N'PC'))
BEGIN
EXEC dbo.sp_executesql @statement = N'CREATE PROCEDURE [dbo].[CommandExecute] AS'
END
GO
ALTER PROCEDURE [dbo].[CommandExecute]

@DatabaseContext nvarchar(max),
@Command nvarchar(max),
@CommandType nvarchar(max),
@Mode int,
@Comment nvarchar(max) = NULL,
@DatabaseName nvarchar(max) = NULL,
@SchemaName nvarchar(max) = NULL,
@ObjectName nvarchar(max) = NULL,
@ObjectType nvarchar(max) = NULL,
@IndexName nvarchar(max) = NULL,
@IndexType int = NULL,
@StatisticsName nvarchar(max) = NULL,
@PartitionNumber int = NULL,
@ExtendedInfo xml = NULL,
@LockMessageSeverity int = 16,
@ExecuteAsUser nvarchar(max) = NULL,
@LogToTable nvarchar(max),
@Execute nvarchar(max)

AS

BEGIN

  ----------------------------------------------------------------------------------------------------
  --// Source:  https://ola.hallengren.com                                                        //--
  --// License: https://ola.hallengren.com/license.html                                           //--
  --// GitHub:  https://github.com/olahallengren/sql-server-maintenance-solution                  //--
  --// Version: 2025-01-28 20:19:42                                                               //--
  ----------------------------------------------------------------------------------------------------

  SET NOCOUNT ON

  DECLARE @StartMessage nvarchar(max)
  DECLARE @EndMessage nvarchar(max)
  DECLARE @ErrorMessage nvarchar(max)
  DECLARE @ErrorMessageOriginal nvarchar(max)
  DECLARE @Severity int

  DECLARE @Errors TABLE (ID int IDENTITY PRIMARY KEY,
                         [Message] nvarchar(max) NOT NULL,
                         Severity int NOT NULL,
                         [State] int)

  DECLARE @CurrentMessage nvarchar(max)
  DECLARE @CurrentSeverity int
  DECLARE @CurrentState int

  DECLARE @sp_executesql nvarchar(max) = QUOTENAME(@DatabaseContext) + '.sys.sp_executesql'

  DECLARE @StartTime datetime2
  DECLARE @EndTime datetime2

  DECLARE @ID int

  DECLARE @Error int = 0
  DECLARE @ReturnCode int = 0

  DECLARE @EmptyLine nvarchar(max) = CHAR(9)

  DECLARE @RevertCommand nvarchar(max)

  ----------------------------------------------------------------------------------------------------
  --// Check core requirements                                                                    //--
  ----------------------------------------------------------------------------------------------------

  IF NOT (SELECT [compatibility_level] FROM sys.databases WHERE database_id = DB_ID()) >= 90
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The database ' + QUOTENAME(DB_NAME(DB_ID())) + ' has to be in compatibility level 90 or higher.', 16, 1
  END

  IF NOT (SELECT uses_ansi_nulls FROM sys.sql_modules WHERE [object_id] = @@PROCID) = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'ANSI_NULLS has to be set to ON for the stored procedure.', 16, 1
  END

  IF NOT (SELECT uses_quoted_identifier FROM sys.sql_modules WHERE [object_id] = @@PROCID) = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'QUOTED_IDENTIFIER has to be set to ON for the stored procedure.', 16, 1
  END

  IF @LogToTable = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandLog')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table CommandLog is missing. Download https://ola.hallengren.com/scripts/CommandLog.sql.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Check input parameters                                                                     //--
  ----------------------------------------------------------------------------------------------------

  IF @DatabaseContext IS NULL OR NOT EXISTS (SELECT * FROM sys.databases WHERE name = @DatabaseContext)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseContext is not supported.', 16, 1
  END

  IF @Command IS NULL OR @Command = ''
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Command is not supported.', 16, 1
  END

  IF @CommandType IS NULL OR @CommandType = '' OR LEN(@CommandType) > 60
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CommandType is not supported.', 16, 1
  END

  IF @Mode NOT IN(1,2) OR @Mode IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Mode is not supported.', 16, 1
  END

  IF @LockMessageSeverity NOT IN(10,16) OR @LockMessageSeverity IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LockMessageSeverity is not supported.', 16, 1
  END

  IF LEN(@ExecuteAsUser) > 128
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ExecuteAsUser is not supported.', 16, 1
  END

  IF @LogToTable NOT IN('Y','N') OR @LogToTable IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LogToTable is not supported.', 16, 1
  END

  IF @Execute NOT IN('Y','N') OR @Execute IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Execute is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Raise errors                                                                               //--
  ----------------------------------------------------------------------------------------------------

  DECLARE ErrorCursor CURSOR FAST_FORWARD FOR SELECT [Message], Severity, [State] FROM @Errors ORDER BY [ID] ASC

  OPEN ErrorCursor

  FETCH ErrorCursor INTO @CurrentMessage, @CurrentSeverity, @CurrentState

  WHILE @@FETCH_STATUS = 0
  BEGIN
    RAISERROR('%s', @CurrentSeverity, @CurrentState, @CurrentMessage) WITH NOWAIT
    RAISERROR(@EmptyLine, 10, 1) WITH NOWAIT

    FETCH NEXT FROM ErrorCursor INTO @CurrentMessage, @CurrentSeverity, @CurrentState
  END

  CLOSE ErrorCursor

  DEALLOCATE ErrorCursor

  IF EXISTS (SELECT * FROM @Errors WHERE Severity >= 16)
  BEGIN
    SET @ReturnCode = 50000
    GOTO ReturnCode
  END

  ----------------------------------------------------------------------------------------------------
  --// Execute as user                                                                            //--
  ----------------------------------------------------------------------------------------------------

  IF @ExecuteAsUser IS NOT NULL
  BEGIN
    SET @Command = 'EXECUTE AS USER = ''' + REPLACE(@ExecuteAsUser,'''','''''') + '''; ' + @Command + '; REVERT;'

    SET @RevertCommand = 'REVERT'
  END

  ----------------------------------------------------------------------------------------------------
  --// Log initial information                                                                    //--
  ----------------------------------------------------------------------------------------------------

  SET @StartTime = SYSDATETIME()

  SET @StartMessage = 'Date and time: ' + CONVERT(nvarchar,@StartTime,120)
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Database context: ' + QUOTENAME(@DatabaseContext)
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Command: ' + @Command
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  IF @Comment IS NOT NULL
  BEGIN
    SET @StartMessage = 'Comment: ' + @Comment
    RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT
  END

  IF @LogToTable = 'Y'
  BEGIN
    INSERT INTO dbo.CommandLog (DatabaseName, SchemaName, ObjectName, ObjectType, IndexName, IndexType, StatisticsName, PartitionNumber, ExtendedInfo, CommandType, Command, StartTime)
    VALUES (@DatabaseName, @SchemaName, @ObjectName, @ObjectType, @IndexName, @IndexType, @StatisticsName, @PartitionNumber, @ExtendedInfo, @CommandType, @Command, @StartTime)
  END

  SET @ID = SCOPE_IDENTITY()

  ----------------------------------------------------------------------------------------------------
  --// Execute command                                                                            //--
  ----------------------------------------------------------------------------------------------------

  IF @Mode = 1 AND @Execute = 'Y'
  BEGIN
    EXECUTE @sp_executesql @stmt = @Command
    SET @Error = @@ERROR
    SET @ReturnCode = @Error
  END

  IF @Mode = 2 AND @Execute = 'Y'
  BEGIN
    BEGIN TRY
      EXECUTE @sp_executesql @stmt = @Command
    END TRY
    BEGIN CATCH
      SET @Error = ERROR_NUMBER()
      SET @ErrorMessageOriginal = ERROR_MESSAGE()

      SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'')
      SET @Severity = CASE WHEN ERROR_NUMBER() IN(1205,1222) THEN @LockMessageSeverity ELSE 16 END
      RAISERROR('%s',@Severity,1,@ErrorMessage) WITH NOWAIT

      IF NOT (ERROR_NUMBER() IN(1205,1222) AND @LockMessageSeverity = 10)
      BEGIN
        SET @ReturnCode = ERROR_NUMBER()
      END

      IF @ExecuteAsUser IS NOT NULL
      BEGIN
        EXECUTE @sp_executesql @RevertCommand
      END
    END CATCH
  END

  ----------------------------------------------------------------------------------------------------
  --// Log completing information                                                                 //--
  ----------------------------------------------------------------------------------------------------

  SET @EndTime = SYSDATETIME()

  SET @EndMessage = 'Outcome: ' + CASE WHEN @Execute = 'N' THEN 'Not Executed' WHEN @Error = 0 THEN 'Succeeded' ELSE 'Failed' END
  RAISERROR('%s',10,1,@EndMessage) WITH NOWAIT

  SET @EndMessage = 'Duration: ' + CASE WHEN (DATEDIFF(SECOND,@StartTime,@EndTime) / (24 * 3600)) > 0 THEN CAST((DATEDIFF(SECOND,@StartTime,@EndTime) / (24 * 3600)) AS nvarchar) + '.' ELSE '' END + CONVERT(nvarchar,DATEADD(SECOND,DATEDIFF(SECOND,@StartTime,@EndTime),'1900-01-01'),108)
  RAISERROR('%s',10,1,@EndMessage) WITH NOWAIT

  SET @EndMessage = 'Date and time: ' + CONVERT(nvarchar,@EndTime,120)
  RAISERROR('%s',10,1,@EndMessage) WITH NOWAIT

  RAISERROR(@EmptyLine,10,1) WITH NOWAIT

  IF @LogToTable = 'Y'
  BEGIN
    UPDATE dbo.CommandLog
    SET EndTime = @EndTime,
        ErrorNumber = CASE WHEN @Execute = 'N' THEN NULL ELSE @Error END,
        ErrorMessage = @ErrorMessageOriginal
    WHERE ID = @ID
  END

  ReturnCode:
  IF @ReturnCode <> 0
  BEGIN
    RETURN @ReturnCode
  END

  ----------------------------------------------------------------------------------------------------

END
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[DatabaseBackup]') AND type in (N'P', N'PC'))
BEGIN
EXEC dbo.sp_executesql @statement = N'CREATE PROCEDURE [dbo].[DatabaseBackup] AS'
END
GO
ALTER PROCEDURE [dbo].[DatabaseBackup]

@Databases nvarchar(max) = NULL,
@Directory nvarchar(max) = NULL,
@BackupType nvarchar(max),
@Verify nvarchar(max) = 'N',
@CleanupTime int = NULL,
@CleanupMode nvarchar(max) = 'AFTER_BACKUP',
@Compress nvarchar(max) = NULL,
@CompressionAlgorithm nvarchar(max) = NULL,
@CopyOnly nvarchar(max) = 'N',
@ChangeBackupType nvarchar(max) = 'N',
@BackupSoftware nvarchar(max) = NULL,
@Checksum nvarchar(max) = 'N',
@BlockSize int = NULL,
@BufferCount int = NULL,
@MaxTransferSize int = NULL,
@NumberOfFiles int = NULL,
@MinBackupSizeForMultipleFiles int = NULL,
@MaxFileSize int = NULL,
@CompressionLevel int = NULL,
@Description nvarchar(max) = NULL,
@BackupSetName nvarchar(max) = NULL,
@Threads int = NULL,
@Throttle int = NULL,
@Encrypt nvarchar(max) = 'N',
@EncryptionAlgorithm nvarchar(max) = NULL,
@ServerCertificate nvarchar(max) = NULL,
@ServerAsymmetricKey nvarchar(max) = NULL,
@EncryptionKey nvarchar(max) = NULL,
@ReadWriteFileGroups nvarchar(max) = 'N',
@OverrideBackupPreference nvarchar(max) = 'N',
@NoRecovery nvarchar(max) = 'N',
@URL nvarchar(max) = NULL,
@Credential nvarchar(max) = NULL,
@MirrorDirectory nvarchar(max) = NULL,
@MirrorCleanupTime int = NULL,
@MirrorCleanupMode nvarchar(max) = 'AFTER_BACKUP',
@MirrorURL nvarchar(max) = NULL,
@AvailabilityGroups nvarchar(max) = NULL,
@Updateability nvarchar(max) = 'ALL',
@AdaptiveCompression nvarchar(max) = NULL,
@ModificationLevel int = NULL,
@MinDatabaseSizeForDifferentialBackup int = NULL,
@LogSizeSinceLastLogBackup int = NULL,
@TimeSinceLastLogBackup int = NULL,
@DataDomainBoostHost nvarchar(max) = NULL,
@DataDomainBoostUser nvarchar(max) = NULL,
@DataDomainBoostDevicePath nvarchar(max) = NULL,
@DataDomainBoostLockboxPath nvarchar(max) = NULL,
@DirectoryStructure nvarchar(max) = '{ServerName}${InstanceName}{DirectorySeparator}{DatabaseName}{DirectorySeparator}{BackupType}_{Partial}_{CopyOnly}',
@AvailabilityGroupDirectoryStructure nvarchar(max) = '{ClusterName}${AvailabilityGroupName}{DirectorySeparator}{DatabaseName}{DirectorySeparator}{BackupType}_{Partial}_{CopyOnly}',
@DirectoryStructureCase nvarchar(max) = NULL,
@FileName nvarchar(max) = '{ServerName}${InstanceName}_{DatabaseName}_{BackupType}_{Partial}_{CopyOnly}_{Year}{Month}{Day}_{Hour}{Minute}{Second}_{FileNumber}.{FileExtension}',
@AvailabilityGroupFileName nvarchar(max) = '{ClusterName}${AvailabilityGroupName}_{DatabaseName}_{BackupType}_{Partial}_{CopyOnly}_{Year}{Month}{Day}_{Hour}{Minute}{Second}_{FileNumber}.{FileExtension}',
@FileNameCase nvarchar(max) = NULL,
@TokenTimezone nvarchar(max) = 'LOCAL',
@FileExtensionFull nvarchar(max) = NULL,
@FileExtensionDiff nvarchar(max) = NULL,
@FileExtensionLog nvarchar(max) = NULL,
@Init nvarchar(max) = 'N',
@Format nvarchar(max) = 'N',
@ObjectLevelRecoveryMap nvarchar(max) = 'N',
@ExcludeLogShippedFromLogBackup nvarchar(max) = 'Y',
@DirectoryCheck nvarchar(max) = 'Y',
@BackupOptions nvarchar(max) = NULL,
@Stats int = NULL,
@ExpireDate datetime = NULL,
@RetainDays int = NULL,
@StringDelimiter nvarchar(max) = ',',
@DatabaseOrder nvarchar(max) = NULL,
@DatabasesInParallel nvarchar(max) = 'N',
@LogToTable nvarchar(max) = 'N',
@Execute nvarchar(max) = 'Y'

AS

BEGIN

  ----------------------------------------------------------------------------------------------------
  --// Source:  https://ola.hallengren.com                                                        //--
  --// License: https://ola.hallengren.com/license.html                                           //--
  --// GitHub:  https://github.com/olahallengren/sql-server-maintenance-solution                  //--
  --// Version: 2025-01-28 20:19:42                                                               //--
  ----------------------------------------------------------------------------------------------------

  SET NOCOUNT ON

  DECLARE @StartMessage nvarchar(max)
  DECLARE @EndMessage nvarchar(max)
  DECLARE @DatabaseMessage nvarchar(max)
  DECLARE @ErrorMessage nvarchar(max)

  DECLARE @StartTime datetime2 = SYSDATETIME()
  DECLARE @SchemaName nvarchar(max) = OBJECT_SCHEMA_NAME(@@PROCID)
  DECLARE @ObjectName nvarchar(max) = OBJECT_NAME(@@PROCID)
  DECLARE @VersionTimestamp nvarchar(max) = SUBSTRING(OBJECT_DEFINITION(@@PROCID),CHARINDEX('--// Version: ',OBJECT_DEFINITION(@@PROCID)) + LEN('--// Version: ') + 1, 19)
  DECLARE @Parameters nvarchar(max)

  DECLARE @HostPlatform nvarchar(max)
  DECLARE @DirectorySeparator nvarchar(max)

  DECLARE @Updated bit

  DECLARE @Cluster nvarchar(max)

  DECLARE @DefaultDirectory nvarchar(4000)

  DECLARE @QueueID int
  DECLARE @QueueStartTime datetime2

  DECLARE @CurrentRootDirectoryID int
  DECLARE @CurrentRootDirectoryPath nvarchar(4000)

  DECLARE @CurrentDBID int
  DECLARE @CurrentDatabaseName nvarchar(max)

  DECLARE @CurrentDatabase_sp_executesql nvarchar(max)

  DECLARE @CurrentUserAccess nvarchar(max)
  DECLARE @CurrentIsReadOnly bit
  DECLARE @CurrentDatabaseState nvarchar(max)
  DECLARE @CurrentInStandby bit
  DECLARE @CurrentRecoveryModel nvarchar(max)
  DECLARE @CurrentDatabaseSize bigint

  DECLARE @CurrentIsEncrypted bit

  DECLARE @CurrentBackupType nvarchar(max)
  DECLARE @CurrentMaxTransferSize int
  DECLARE @CurrentNumberOfFiles int
  DECLARE @CurrentFileExtension nvarchar(max)
  DECLARE @CurrentFileNumber int
  DECLARE @CurrentDifferentialBaseLSN numeric(25,0)
  DECLARE @CurrentDifferentialBaseIsSnapshot bit
  DECLARE @CurrentLogLSN numeric(25,0)
  DECLARE @BackupInProcess bit
  DECLARE @CurrentLatestBackup datetime2
  DECLARE @CurrentDatabaseNameFS nvarchar(max)
  DECLARE @CurrentDirectoryStructure nvarchar(max)
  DECLARE @CurrentDatabaseFileName nvarchar(max)
  DECLARE @CurrentMaxFilePathLength nvarchar(max)
  DECLARE @CurrentFileName nvarchar(max)
  DECLARE @CurrentDirectoryID int
  DECLARE @CurrentDirectoryPath nvarchar(4000)
  DECLARE @CurrentFilePath nvarchar(max)
  DECLARE @CurrentDate datetime2
  DECLARE @CurrentDateUTC datetime2
  DECLARE @CurrentCleanupDate datetime2
  DECLARE @CurrentReplicaID uniqueidentifier
  DECLARE @CurrentAvailabilityGroupID uniqueidentifier
  DECLARE @CurrentAvailabilityGroup nvarchar(max)
  DECLARE @CurrentAvailabilityGroupRole nvarchar(max)
  DECLARE @CurrentAvailabilityGroupBackupPreference nvarchar(max)
  DECLARE @CurrentIsPreferredBackupReplica bit
  DECLARE @CurrentDatabaseMirroringRole nvarchar(max)
  DECLARE @CurrentLogShippingRole nvarchar(max)

  DECLARE @CurrentBackupSetID int
  DECLARE @CurrentIsMirror bit
  DECLARE @CurrentLastLogBackup datetime2
  DECLARE @CurrentLogSizeSinceLastLogBackup float
  DECLARE @CurrentAllocatedExtentPageCount bigint
  DECLARE @CurrentModifiedExtentPageCount bigint

  DECLARE @CurrentDatabaseContext nvarchar(max)
  DECLARE @CurrentCommand nvarchar(max)
  DECLARE @CurrentCommandOutput int
  DECLARE @CurrentCommandType nvarchar(max)

  DECLARE @Errors TABLE (ID int IDENTITY PRIMARY KEY,
                         [Message] nvarchar(max) NOT NULL,
                         Severity int NOT NULL,
                         [State] int)

  DECLARE @CurrentMessage nvarchar(max)
  DECLARE @CurrentSeverity int
  DECLARE @CurrentState int

  DECLARE @Directories TABLE (ID int PRIMARY KEY,
                              DirectoryPath nvarchar(max),
                              Mirror bit,
                              Completed bit)

  DECLARE @URLs TABLE (ID int PRIMARY KEY,
                       DirectoryPath nvarchar(max),
                       Mirror bit)

  DECLARE @DirectoryInfo TABLE (FileExists bit,
                                FileIsADirectory bit,
                                ParentDirectoryExists bit)

  DECLARE @tmpDatabases TABLE (ID int IDENTITY,
                               DatabaseName nvarchar(max),
                               DatabaseNameFS nvarchar(max),
                               DatabaseType nvarchar(max),
                               AvailabilityGroup bit,
                               StartPosition int,
                               DatabaseSize bigint,
                               LogSizeSinceLastLogBackup float,
                               [Order] int,
                               Selected bit,
                               Completed bit,
                               PRIMARY KEY(Selected, Completed, [Order], ID))

  DECLARE @tmpAvailabilityGroups TABLE (ID int IDENTITY PRIMARY KEY,
                                        AvailabilityGroupName nvarchar(max),
                                        StartPosition int,
                                        Selected bit)

  DECLARE @tmpDatabasesAvailabilityGroups TABLE (DatabaseName nvarchar(max),
                                                 AvailabilityGroupName nvarchar(max))

  DECLARE @SelectedDatabases TABLE (DatabaseName nvarchar(max),
                                    DatabaseType nvarchar(max),
                                    AvailabilityGroup nvarchar(max),
                                    StartPosition int,
                                    Selected bit)

  DECLARE @SelectedAvailabilityGroups TABLE (AvailabilityGroupName nvarchar(max),
                                             StartPosition int,
                                             Selected bit)

  DECLARE @CurrentBackupOutput bit

  DECLARE @CurrentBackupSet TABLE (ID int IDENTITY PRIMARY KEY,
                                   Mirror bit,
                                   VerifyCompleted bit,
                                   VerifyOutput int)

  DECLARE @CurrentDirectories TABLE (ID int PRIMARY KEY,
                                     DirectoryPath nvarchar(max),
                                     Mirror bit,
                                     DirectoryNumber int,
                                     CleanupDate datetime2,
                                     CleanupMode nvarchar(max),
                                     CreateCompleted bit,
                                     CleanupCompleted bit,
                                     CreateOutput int,
                                     CleanupOutput int)

  DECLARE @CurrentURLs TABLE (ID int PRIMARY KEY,
                              DirectoryPath nvarchar(max),
                              Mirror bit,
                              DirectoryNumber int)

  DECLARE @CurrentFiles TABLE ([Type] nvarchar(max),
                               FilePath nvarchar(max),
                               Mirror bit)

  DECLARE @CurrentCleanupDates TABLE (CleanupDate datetime2,
                                      Mirror bit)

  DECLARE @Error int = 0
  DECLARE @ReturnCode int = 0

  DECLARE @EmptyLine nvarchar(max) = CHAR(9)

  DECLARE @Version numeric(18,10) = CAST(LEFT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)),CHARINDEX('.',CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))) - 1) + '.' + REPLACE(RIGHT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)), LEN(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))) - CHARINDEX('.',CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)))),'.','') AS numeric(18,10))

  IF @Version >= 14
  BEGIN
    SELECT @HostPlatform = host_platform
    FROM sys.dm_os_host_info
  END
  ELSE
  BEGIN
    SET @HostPlatform = 'Windows'
  END

  DECLARE @AmazonRDS bit = CASE WHEN DB_ID('rdsadmin') IS NOT NULL AND SUSER_SNAME(0x01) = 'rdsa' THEN 1 ELSE 0 END

  ----------------------------------------------------------------------------------------------------
  --// Log initial information                                                                    //--
  ----------------------------------------------------------------------------------------------------

  SET @Parameters = '@Databases = ' + ISNULL('''' + REPLACE(@Databases,'''','''''') + '''','NULL')
  SET @Parameters += ', @Directory = ' + ISNULL('''' + REPLACE(@Directory,'''','''''') + '''','NULL')
  SET @Parameters += ', @BackupType = ' + ISNULL('''' + REPLACE(@BackupType,'''','''''') + '''','NULL')
  SET @Parameters += ', @Verify = ' + ISNULL('''' + REPLACE(@Verify,'''','''''') + '''','NULL')
  SET @Parameters += ', @CleanupTime = ' + ISNULL(CAST(@CleanupTime AS nvarchar),'NULL')
  SET @Parameters += ', @CleanupMode = ' + ISNULL('''' + REPLACE(@CleanupMode,'''','''''') + '''','NULL')
  SET @Parameters += ', @Compress = ' + ISNULL('''' + REPLACE(@Compress,'''','''''') + '''','NULL')
  SET @Parameters += ', @CompressionAlgorithm = ' + ISNULL('''' + REPLACE(@CompressionAlgorithm,'''','''''') + '''','NULL')
  SET @Parameters += ', @CopyOnly = ' + ISNULL('''' + REPLACE(@CopyOnly,'''','''''') + '''','NULL')
  SET @Parameters += ', @ChangeBackupType = ' + ISNULL('''' + REPLACE(@ChangeBackupType,'''','''''') + '''','NULL')
  SET @Parameters += ', @BackupSoftware = ' + ISNULL('''' + REPLACE(@BackupSoftware,'''','''''') + '''','NULL')
  SET @Parameters += ', @Checksum = ' + ISNULL('''' + REPLACE(@Checksum,'''','''''') + '''','NULL')
  SET @Parameters += ', @BlockSize = ' + ISNULL(CAST(@BlockSize AS nvarchar),'NULL')
  SET @Parameters += ', @BufferCount = ' + ISNULL(CAST(@BufferCount AS nvarchar),'NULL')
  SET @Parameters += ', @MaxTransferSize = ' + ISNULL(CAST(@MaxTransferSize AS nvarchar),'NULL')
  SET @Parameters += ', @NumberOfFiles = ' + ISNULL(CAST(@NumberOfFiles AS nvarchar),'NULL')
  SET @Parameters += ', @MinBackupSizeForMultipleFiles = ' + ISNULL(CAST(@MinBackupSizeForMultipleFiles AS nvarchar),'NULL')
  SET @Parameters += ', @MaxFileSize = ' + ISNULL(CAST(@MaxFileSize AS nvarchar),'NULL')
  SET @Parameters += ', @CompressionLevel = ' + ISNULL(CAST(@CompressionLevel AS nvarchar),'NULL')
  SET @Parameters += ', @Description = ' + ISNULL('''' + REPLACE(@Description,'''','''''') + '''','NULL')
  SET @Parameters += ', @BackupSetName = ' + ISNULL('''' + REPLACE(@BackupSetName,'''','''''') + '''','NULL')
  SET @Parameters += ', @Threads = ' + ISNULL(CAST(@Threads AS nvarchar),'NULL')
  SET @Parameters += ', @Throttle = ' + ISNULL(CAST(@Throttle AS nvarchar),'NULL')
  SET @Parameters += ', @Encrypt = ' + ISNULL('''' + REPLACE(@Encrypt,'''','''''') + '''','NULL')
  SET @Parameters += ', @EncryptionAlgorithm = ' + ISNULL('''' + REPLACE(@EncryptionAlgorithm,'''','''''') + '''','NULL')
  SET @Parameters += ', @ServerCertificate = ' + ISNULL('''' + REPLACE(@ServerCertificate,'''','''''') + '''','NULL')
  SET @Parameters += ', @ServerAsymmetricKey = ' + ISNULL('''' + REPLACE(@ServerAsymmetricKey,'''','''''') + '''','NULL')
  SET @Parameters += ', @EncryptionKey = ' + ISNULL('''' + REPLACE(@EncryptionKey,'''','''''') + '''','NULL')
  SET @Parameters += ', @ReadWriteFileGroups = ' + ISNULL('''' + REPLACE(@ReadWriteFileGroups,'''','''''') + '''','NULL')
  SET @Parameters += ', @OverrideBackupPreference = ' + ISNULL('''' + REPLACE(@OverrideBackupPreference,'''','''''') + '''','NULL')
  SET @Parameters += ', @NoRecovery = ' + ISNULL('''' + REPLACE(@NoRecovery,'''','''''') + '''','NULL')
  SET @Parameters += ', @URL = ' + ISNULL('''' + REPLACE(@URL,'''','''''') + '''','NULL')
  SET @Parameters += ', @Credential = ' + ISNULL('''' + REPLACE(@Credential,'''','''''') + '''','NULL')
  SET @Parameters += ', @MirrorDirectory = ' + ISNULL('''' + REPLACE(@MirrorDirectory,'''','''''') + '''','NULL')
  SET @Parameters += ', @MirrorCleanupTime = ' + ISNULL(CAST(@MirrorCleanupTime AS nvarchar),'NULL')
  SET @Parameters += ', @MirrorCleanupMode = ' + ISNULL('''' + REPLACE(@MirrorCleanupMode,'''','''''') + '''','NULL')
  SET @Parameters += ', @MirrorURL = ' + ISNULL('''' + REPLACE(@MirrorURL,'''','''''') + '''','NULL')
  SET @Parameters += ', @AvailabilityGroups = ' + ISNULL('''' + REPLACE(@AvailabilityGroups,'''','''''') + '''','NULL')
  SET @Parameters += ', @Updateability = ' + ISNULL('''' + REPLACE(@Updateability,'''','''''') + '''','NULL')
  SET @Parameters += ', @AdaptiveCompression = ' + ISNULL('''' + REPLACE(@AdaptiveCompression,'''','''''') + '''','NULL')
  SET @Parameters += ', @ModificationLevel = ' + ISNULL(CAST(@ModificationLevel AS nvarchar),'NULL')
  SET @Parameters += ', @MinDatabaseSizeForDifferentialBackup = ' + ISNULL('''' + REPLACE(@MinDatabaseSizeForDifferentialBackup,'''','''''') + '''','NULL')
  SET @Parameters += ', @LogSizeSinceLastLogBackup = ' + ISNULL(CAST(@LogSizeSinceLastLogBackup AS nvarchar),'NULL')
  SET @Parameters += ', @TimeSinceLastLogBackup = ' + ISNULL(CAST(@TimeSinceLastLogBackup AS nvarchar),'NULL')
  SET @Parameters += ', @DataDomainBoostHost = ' + ISNULL('''' + REPLACE(@DataDomainBoostHost,'''','''''') + '''','NULL')
  SET @Parameters += ', @DataDomainBoostUser = ' + ISNULL('''' + REPLACE(@DataDomainBoostUser,'''','''''') + '''','NULL')
  SET @Parameters += ', @DataDomainBoostDevicePath = ' + ISNULL('''' + REPLACE(@DataDomainBoostDevicePath,'''','''''') + '''','NULL')
  SET @Parameters += ', @DataDomainBoostLockboxPath = ' + ISNULL('''' + REPLACE(@DataDomainBoostLockboxPath,'''','''''') + '''','NULL')
  SET @Parameters += ', @DirectoryStructure = ' + ISNULL('''' + REPLACE(@DirectoryStructure,'''','''''') + '''','NULL')
  SET @Parameters += ', @AvailabilityGroupDirectoryStructure = ' + ISNULL('''' + REPLACE(@AvailabilityGroupDirectoryStructure,'''','''''') + '''','NULL')
  SET @Parameters += ', @DirectoryStructureCase = ' + ISNULL('''' + REPLACE(@DirectoryStructureCase,'''','''''') + '''','NULL')
  SET @Parameters += ', @FileName = ' + ISNULL('''' + REPLACE(@FileName,'''','''''') + '''','NULL')
  SET @Parameters += ', @AvailabilityGroupFileName = ' + ISNULL('''' + REPLACE(@AvailabilityGroupFileName,'''','''''') + '''','NULL')
  SET @Parameters += ', @FileNameCase = ' + ISNULL('''' + REPLACE(@FileNameCase,'''','''''') + '''','NULL')
  SET @Parameters += ', @TokenTimezone = ' + ISNULL('''' + REPLACE(@TokenTimezone,'''','''''') + '''','NULL')
  SET @Parameters += ', @FileExtensionFull = ' + ISNULL('''' + REPLACE(@FileExtensionFull,'''','''''') + '''','NULL')
  SET @Parameters += ', @FileExtensionDiff = ' + ISNULL('''' + REPLACE(@FileExtensionDiff,'''','''''') + '''','NULL')
  SET @Parameters += ', @FileExtensionLog = ' + ISNULL('''' + REPLACE(@FileExtensionLog,'''','''''') + '''','NULL')
  SET @Parameters += ', @Init = ' + ISNULL('''' + REPLACE(@Init,'''','''''') + '''','NULL')
  SET @Parameters += ', @Format = ' + ISNULL('''' + REPLACE(@Format,'''','''''') + '''','NULL')
  SET @Parameters += ', @ObjectLevelRecoveryMap = ' + ISNULL('''' + REPLACE(@ObjectLevelRecoveryMap,'''','''''') + '''','NULL')
  SET @Parameters += ', @ExcludeLogShippedFromLogBackup = ' + ISNULL('''' + REPLACE(@ExcludeLogShippedFromLogBackup,'''','''''') + '''','NULL')
  SET @Parameters += ', @DirectoryCheck = ' + ISNULL('''' + REPLACE(@DirectoryCheck,'''','''''') + '''','NULL')
  SET @Parameters += ', @BackupOptions = ' + ISNULL('''' + REPLACE(@BackupOptions,'''','''''') + '''','NULL')
  SET @Parameters += ', @Stats = ' + ISNULL(CAST(@Stats AS nvarchar),'NULL')
  SET @Parameters += ', @ExpireDate = ' + ISNULL('''' + CONVERT(nvarchar, @ExpireDate, 21) + '''','NULL')
  SET @Parameters += ', @RetainDays = ' + ISNULL(CAST(@RetainDays AS nvarchar),'NULL')
  SET @Parameters += ', @StringDelimiter = ' + ISNULL('''' + REPLACE(@StringDelimiter,'''','''''') + '''','NULL')
  SET @Parameters += ', @DatabaseOrder = ' + ISNULL('''' + REPLACE(@DatabaseOrder,'''','''''') + '''','NULL')
  SET @Parameters += ', @DatabasesInParallel = ' + ISNULL('''' + REPLACE(@DatabasesInParallel,'''','''''') + '''','NULL')
  SET @Parameters += ', @LogToTable = ' + ISNULL('''' + REPLACE(@LogToTable,'''','''''') + '''','NULL')
  SET @Parameters += ', @Execute = ' + ISNULL('''' + REPLACE(@Execute,'''','''''') + '''','NULL')

  SET @StartMessage = 'Date and time: ' + CONVERT(nvarchar,@StartTime,120)
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Server: ' + CAST(SERVERPROPERTY('ServerName') AS nvarchar(max))
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Version: ' + CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Edition: ' + CAST(SERVERPROPERTY('Edition') AS nvarchar(max))
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Platform: ' + @HostPlatform
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Procedure: ' + QUOTENAME(DB_NAME(DB_ID())) + '.' + QUOTENAME(@SchemaName) + '.' + QUOTENAME(@ObjectName)
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Parameters: ' + @Parameters
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Version: ' + @VersionTimestamp
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Source: https://ola.hallengren.com'
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  RAISERROR(@EmptyLine,10,1) WITH NOWAIT

  ----------------------------------------------------------------------------------------------------
  --// Check core requirements                                                                    //--
  ----------------------------------------------------------------------------------------------------

  IF NOT (SELECT [compatibility_level] FROM sys.databases WHERE database_id = DB_ID()) >= 90
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The database ' + QUOTENAME(DB_NAME(DB_ID())) + ' has to be in compatibility level 90 or higher.', 16, 1
  END

  IF NOT (SELECT uses_ansi_nulls FROM sys.sql_modules WHERE [object_id] = @@PROCID) = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'ANSI_NULLS has to be set to ON for the stored procedure.', 16, 1
  END

  IF NOT (SELECT uses_quoted_identifier FROM sys.sql_modules WHERE [object_id] = @@PROCID) = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'QUOTED_IDENTIFIER has to be set to ON for the stored procedure.', 16, 1
  END

  IF NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'P' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandExecute')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The stored procedure CommandExecute is missing. Download https://ola.hallengren.com/scripts/CommandExecute.sql.', 16, 1
  END

  IF EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'P' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandExecute' AND OBJECT_DEFINITION(objects.[object_id]) NOT LIKE '%@DatabaseContext%')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The stored procedure CommandExecute needs to be updated. Download https://ola.hallengren.com/scripts/CommandExecute.sql.', 16, 1
  END

  IF @LogToTable = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandLog')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table CommandLog is missing. Download https://ola.hallengren.com/scripts/CommandLog.sql.', 16, 1
  END

  IF @DatabasesInParallel = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'Queue')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table Queue is missing. Download https://ola.hallengren.com/scripts/Queue.sql.', 16, 1
  END

  IF @DatabasesInParallel = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'QueueDatabase')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table QueueDatabase is missing. Download https://ola.hallengren.com/scripts/QueueDatabase.sql.', 16, 1
  END

  IF @@TRANCOUNT <> 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The transaction count is not 0.', 16, 1
  END

  IF @AmazonRDS = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The stored procedure DatabaseBackup is not supported on Amazon RDS.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Select databases                                                                           //--
  ----------------------------------------------------------------------------------------------------

  SET @Databases = REPLACE(@Databases, CHAR(10), '')
  SET @Databases = REPLACE(@Databases, CHAR(13), '')

  WHILE CHARINDEX(@StringDelimiter + ' ', @Databases) > 0 SET @Databases = REPLACE(@Databases, @StringDelimiter + ' ', @StringDelimiter)
  WHILE CHARINDEX(' ' + @StringDelimiter, @Databases) > 0 SET @Databases = REPLACE(@Databases, ' ' + @StringDelimiter, @StringDelimiter)

  SET @Databases = LTRIM(RTRIM(@Databases));

  WITH Databases1 (StartPosition, EndPosition, DatabaseItem) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, 1), 0), LEN(@Databases) + 1) AS EndPosition,
         SUBSTRING(@Databases, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, 1), 0), LEN(@Databases) + 1) - 1) AS DatabaseItem
  WHERE @Databases IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, EndPosition + 1), 0), LEN(@Databases) + 1) AS EndPosition,
         SUBSTRING(@Databases, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, EndPosition + 1), 0), LEN(@Databases) + 1) - EndPosition - 1) AS DatabaseItem
  FROM Databases1
  WHERE EndPosition < LEN(@Databases) + 1
  ),
  Databases2 (DatabaseItem, StartPosition, Selected) AS
  (
  SELECT CASE WHEN DatabaseItem LIKE '-%' THEN RIGHT(DatabaseItem,LEN(DatabaseItem) - 1) ELSE DatabaseItem END AS DatabaseItem,
         StartPosition,
         CASE WHEN DatabaseItem LIKE '-%' THEN 0 ELSE 1 END AS Selected
  FROM Databases1
  ),
  Databases3 (DatabaseItem, DatabaseType, AvailabilityGroup, StartPosition, Selected) AS
  (
  SELECT CASE WHEN DatabaseItem IN('ALL_DATABASES','SYSTEM_DATABASES','USER_DATABASES','AVAILABILITY_GROUP_DATABASES') THEN '%' ELSE DatabaseItem END AS DatabaseItem,
         CASE WHEN DatabaseItem = 'SYSTEM_DATABASES' THEN 'S' WHEN DatabaseItem = 'USER_DATABASES' THEN 'U' ELSE NULL END AS DatabaseType,
         CASE WHEN DatabaseItem = 'AVAILABILITY_GROUP_DATABASES' THEN 1 ELSE NULL END AvailabilityGroup,
         StartPosition,
         Selected
  FROM Databases2
  ),
  Databases4 (DatabaseName, DatabaseType, AvailabilityGroup, StartPosition, Selected) AS
  (
  SELECT CASE WHEN LEFT(DatabaseItem,1) = '[' AND RIGHT(DatabaseItem,1) = ']' THEN PARSENAME(DatabaseItem,1) ELSE DatabaseItem END AS DatabaseItem,
         DatabaseType,
         AvailabilityGroup,
         StartPosition,
         Selected
  FROM Databases3
  )
  INSERT INTO @SelectedDatabases (DatabaseName, DatabaseType, AvailabilityGroup, StartPosition, Selected)
  SELECT DatabaseName,
         DatabaseType,
         AvailabilityGroup,
         StartPosition,
         Selected
  FROM Databases4
  OPTION (MAXRECURSION 0)

  IF @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
  BEGIN
    INSERT INTO @tmpAvailabilityGroups (AvailabilityGroupName, Selected)
    SELECT name AS AvailabilityGroupName,
           0 AS Selected
    FROM sys.availability_groups

    INSERT INTO @tmpDatabasesAvailabilityGroups (DatabaseName, AvailabilityGroupName)
    SELECT databases.name,
           availability_groups.name
    FROM sys.databases databases
    INNER JOIN sys.availability_replicas availability_replicas ON databases.replica_id = availability_replicas.replica_id
    INNER JOIN sys.availability_groups availability_groups ON availability_replicas.group_id = availability_groups.group_id
  END

  INSERT INTO @tmpDatabases (DatabaseName, DatabaseNameFS, DatabaseType, AvailabilityGroup, [Order], Selected, Completed)
  SELECT [name] AS DatabaseName,
         RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE([name],'\',''),'/',''),':',''),'*',''),'?',''),'"',''),'<',''),'>',''),'|','')) AS DatabaseNameFS,
         CASE WHEN name IN('master','msdb','model') OR is_distributor = 1 THEN 'S' ELSE 'U' END AS DatabaseType,
         NULL AS AvailabilityGroup,
         0 AS [Order],
         0 AS Selected,
         0 AS Completed
  FROM sys.databases
  WHERE [name] <> 'tempdb'
  AND source_database_id IS NULL
  ORDER BY [name] ASC

  UPDATE tmpDatabases
  SET AvailabilityGroup = CASE WHEN EXISTS (SELECT * FROM @tmpDatabasesAvailabilityGroups WHERE DatabaseName = tmpDatabases.DatabaseName) THEN 1 ELSE 0 END
  FROM @tmpDatabases tmpDatabases

  UPDATE tmpDatabases
  SET tmpDatabases.Selected = SelectedDatabases.Selected
  FROM @tmpDatabases tmpDatabases
  INNER JOIN @SelectedDatabases SelectedDatabases
  ON tmpDatabases.DatabaseName LIKE REPLACE(SelectedDatabases.DatabaseName,'_','[_]')
  AND (tmpDatabases.DatabaseType = SelectedDatabases.DatabaseType OR SelectedDatabases.DatabaseType IS NULL)
  AND (tmpDatabases.AvailabilityGroup = SelectedDatabases.AvailabilityGroup OR SelectedDatabases.AvailabilityGroup IS NULL)
  WHERE SelectedDatabases.Selected = 1

  UPDATE tmpDatabases
  SET tmpDatabases.Selected = SelectedDatabases.Selected
  FROM @tmpDatabases tmpDatabases
  INNER JOIN @SelectedDatabases SelectedDatabases
  ON tmpDatabases.DatabaseName LIKE REPLACE(SelectedDatabases.DatabaseName,'_','[_]')
  AND (tmpDatabases.DatabaseType = SelectedDatabases.DatabaseType OR SelectedDatabases.DatabaseType IS NULL)
  AND (tmpDatabases.AvailabilityGroup = SelectedDatabases.AvailabilityGroup OR SelectedDatabases.AvailabilityGroup IS NULL)
  WHERE SelectedDatabases.Selected = 0

  UPDATE tmpDatabases
  SET tmpDatabases.StartPosition = SelectedDatabases2.StartPosition
  FROM @tmpDatabases tmpDatabases
  INNER JOIN (SELECT tmpDatabases.DatabaseName, MIN(SelectedDatabases.StartPosition) AS StartPosition
              FROM @tmpDatabases tmpDatabases
              INNER JOIN @SelectedDatabases SelectedDatabases
              ON tmpDatabases.DatabaseName LIKE REPLACE(SelectedDatabases.DatabaseName,'_','[_]')
              AND (tmpDatabases.DatabaseType = SelectedDatabases.DatabaseType OR SelectedDatabases.DatabaseType IS NULL)
              AND (tmpDatabases.AvailabilityGroup = SelectedDatabases.AvailabilityGroup OR SelectedDatabases.AvailabilityGroup IS NULL)
              WHERE SelectedDatabases.Selected = 1
              GROUP BY tmpDatabases.DatabaseName) SelectedDatabases2
  ON tmpDatabases.DatabaseName = SelectedDatabases2.DatabaseName

  IF @Databases IS NOT NULL AND (NOT EXISTS(SELECT * FROM @SelectedDatabases) OR EXISTS(SELECT * FROM @SelectedDatabases WHERE DatabaseName IS NULL OR DATALENGTH(DatabaseName) = 0))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Databases is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Select availability groups                                                                 //--
  ----------------------------------------------------------------------------------------------------

  IF @AvailabilityGroups IS NOT NULL AND @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
  BEGIN

    SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, CHAR(10), '')
    SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, CHAR(13), '')

    WHILE CHARINDEX(@StringDelimiter + ' ', @AvailabilityGroups) > 0 SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, @StringDelimiter + ' ', @StringDelimiter)
    WHILE CHARINDEX(' ' + @StringDelimiter, @AvailabilityGroups) > 0 SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, ' ' + @StringDelimiter, @StringDelimiter)

    SET @AvailabilityGroups = LTRIM(RTRIM(@AvailabilityGroups));

    WITH AvailabilityGroups1 (StartPosition, EndPosition, AvailabilityGroupItem) AS
    (
    SELECT 1 AS StartPosition,
           ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, 1), 0), LEN(@AvailabilityGroups) + 1) AS EndPosition,
           SUBSTRING(@AvailabilityGroups, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, 1), 0), LEN(@AvailabilityGroups) + 1) - 1) AS AvailabilityGroupItem
    WHERE @AvailabilityGroups IS NOT NULL
    UNION ALL
    SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
           ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, EndPosition + 1), 0), LEN(@AvailabilityGroups) + 1) AS EndPosition,
           SUBSTRING(@AvailabilityGroups, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, EndPosition + 1), 0), LEN(@AvailabilityGroups) + 1) - EndPosition - 1) AS AvailabilityGroupItem
    FROM AvailabilityGroups1
    WHERE EndPosition < LEN(@AvailabilityGroups) + 1
    ),
    AvailabilityGroups2 (AvailabilityGroupItem, StartPosition, Selected) AS
    (
    SELECT CASE WHEN AvailabilityGroupItem LIKE '-%' THEN RIGHT(AvailabilityGroupItem,LEN(AvailabilityGroupItem) - 1) ELSE AvailabilityGroupItem END AS AvailabilityGroupItem,
           StartPosition,
           CASE WHEN AvailabilityGroupItem LIKE '-%' THEN 0 ELSE 1 END AS Selected
    FROM AvailabilityGroups1
    ),
    AvailabilityGroups3 (AvailabilityGroupItem, StartPosition, Selected) AS
    (
    SELECT CASE WHEN AvailabilityGroupItem = 'ALL_AVAILABILITY_GROUPS' THEN '%' ELSE AvailabilityGroupItem END AS AvailabilityGroupItem,
           StartPosition,
           Selected
    FROM AvailabilityGroups2
    ),
    AvailabilityGroups4 (AvailabilityGroupName, StartPosition, Selected) AS
    (
    SELECT CASE WHEN LEFT(AvailabilityGroupItem,1) = '[' AND RIGHT(AvailabilityGroupItem,1) = ']' THEN PARSENAME(AvailabilityGroupItem,1) ELSE AvailabilityGroupItem END AS AvailabilityGroupItem,
           StartPosition,
           Selected
    FROM AvailabilityGroups3
    )
    INSERT INTO @SelectedAvailabilityGroups (AvailabilityGroupName, StartPosition, Selected)
    SELECT AvailabilityGroupName, StartPosition, Selected
    FROM AvailabilityGroups4
    OPTION (MAXRECURSION 0)

    UPDATE tmpAvailabilityGroups
    SET tmpAvailabilityGroups.Selected = SelectedAvailabilityGroups.Selected
    FROM @tmpAvailabilityGroups tmpAvailabilityGroups
    INNER JOIN @SelectedAvailabilityGroups SelectedAvailabilityGroups
    ON tmpAvailabilityGroups.AvailabilityGroupName LIKE REPLACE(SelectedAvailabilityGroups.AvailabilityGroupName,'_','[_]')
    WHERE SelectedAvailabilityGroups.Selected = 1

    UPDATE tmpAvailabilityGroups
    SET tmpAvailabilityGroups.Selected = SelectedAvailabilityGroups.Selected
    FROM @tmpAvailabilityGroups tmpAvailabilityGroups
    INNER JOIN @SelectedAvailabilityGroups SelectedAvailabilityGroups
    ON tmpAvailabilityGroups.AvailabilityGroupName LIKE REPLACE(SelectedAvailabilityGroups.AvailabilityGroupName,'_','[_]')
    WHERE SelectedAvailabilityGroups.Selected = 0

    UPDATE tmpAvailabilityGroups
    SET tmpAvailabilityGroups.StartPosition = SelectedAvailabilityGroups2.StartPosition
    FROM @tmpAvailabilityGroups tmpAvailabilityGroups
    INNER JOIN (SELECT tmpAvailabilityGroups.AvailabilityGroupName, MIN(SelectedAvailabilityGroups.StartPosition) AS StartPosition
                FROM @tmpAvailabilityGroups tmpAvailabilityGroups
                INNER JOIN @SelectedAvailabilityGroups SelectedAvailabilityGroups
                ON tmpAvailabilityGroups.AvailabilityGroupName LIKE REPLACE(SelectedAvailabilityGroups.AvailabilityGroupName,'_','[_]')
                WHERE SelectedAvailabilityGroups.Selected = 1
                GROUP BY tmpAvailabilityGroups.AvailabilityGroupName) SelectedAvailabilityGroups2
    ON tmpAvailabilityGroups.AvailabilityGroupName = SelectedAvailabilityGroups2.AvailabilityGroupName

    UPDATE tmpDatabases
    SET tmpDatabases.StartPosition = tmpAvailabilityGroups.StartPosition,
        tmpDatabases.Selected = 1
    FROM @tmpDatabases tmpDatabases
    INNER JOIN @tmpDatabasesAvailabilityGroups tmpDatabasesAvailabilityGroups ON tmpDatabases.DatabaseName = tmpDatabasesAvailabilityGroups.DatabaseName
    INNER JOIN @tmpAvailabilityGroups tmpAvailabilityGroups ON tmpDatabasesAvailabilityGroups.AvailabilityGroupName = tmpAvailabilityGroups.AvailabilityGroupName
    WHERE tmpAvailabilityGroups.Selected = 1

  END

  IF @AvailabilityGroups IS NOT NULL AND (NOT EXISTS(SELECT * FROM @SelectedAvailabilityGroups) OR EXISTS(SELECT * FROM @SelectedAvailabilityGroups WHERE AvailabilityGroupName IS NULL OR AvailabilityGroupName = '') OR @Version < 11 OR SERVERPROPERTY('IsHadrEnabled') = 0)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroups is not supported.', 16, 1
  END

  IF (@Databases IS NULL AND @AvailabilityGroups IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'You need to specify one of the parameters @Databases and @AvailabilityGroups.', 16, 2
  END

  IF (@Databases IS NOT NULL AND @AvailabilityGroups IS NOT NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'You can only specify one of the parameters @Databases and @AvailabilityGroups.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------
  --// Check database names                                                                       //--
  ----------------------------------------------------------------------------------------------------

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @tmpDatabases
  WHERE Selected = 1
  AND DATALENGTH(DatabaseNameFS) = 0
  ORDER BY DatabaseName ASC
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The names of the following databases are not supported: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 16, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @tmpDatabases
  WHERE UPPER(DatabaseNameFS) IN(SELECT UPPER(DatabaseNameFS) FROM @tmpDatabases GROUP BY UPPER(DatabaseNameFS) HAVING COUNT(*) > 1 AND MAX(CAST(Selected AS int)) = 1)

  AND DATALENGTH(DatabaseNameFS) > 0
  ORDER BY DatabaseName ASC
  OPTION (RECOMPILE)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The names of the following databases are not unique in the file system: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Select default directory                                                                      //--
  ----------------------------------------------------------------------------------------------------

  IF @Directory IS NULL AND @URL IS NULL AND (@BackupSoftware <> 'DATA_DOMAIN_BOOST' OR @BackupSoftware IS NULL)
  BEGIN
    IF @Version >= 15
    BEGIN
      SET @DefaultDirectory = CAST(SERVERPROPERTY('InstanceDefaultBackupPath') AS nvarchar(max))
    END
    ELSE
    BEGIN
      EXECUTE [master].dbo.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'SOFTWARE\Microsoft\MSSQLServer\MSSQLServer', N'BackupDirectory', @DefaultDirectory OUTPUT
    END

    IF @DefaultDirectory LIKE 'http://%' OR @DefaultDirectory LIKE 'https://%'
    BEGIN
      SET @URL = @DefaultDirectory
    END
    ELSE
    BEGIN
      INSERT INTO @Directories (ID, DirectoryPath, Mirror, Completed)
      SELECT 1, @DefaultDirectory, 0, 0
    END
  END

  ----------------------------------------------------------------------------------------------------
  --// Select directories                                                                         //--
  ----------------------------------------------------------------------------------------------------

  SET @Directory = REPLACE(@Directory, CHAR(10), '')
  SET @Directory = REPLACE(@Directory, CHAR(13), '')

  WHILE CHARINDEX(@StringDelimiter + ' ', @Directory) > 0 SET @Directory = REPLACE(@Directory, @StringDelimiter + ' ', @StringDelimiter)
  WHILE CHARINDEX(' ' + @StringDelimiter, @Directory) > 0 SET @Directory = REPLACE(@Directory, ' ' + @StringDelimiter, @StringDelimiter)

  SET @Directory = LTRIM(RTRIM(@Directory));

  WITH Directories (StartPosition, EndPosition, Directory) AS
  (
  SELECT 1 AS StartPosition,
          ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Directory, 1), 0), LEN(@Directory) + 1) AS EndPosition,
          SUBSTRING(@Directory, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Directory, 1), 0), LEN(@Directory) + 1) - 1) AS Directory
  WHERE @Directory IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
          ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Directory, EndPosition + 1), 0), LEN(@Directory) + 1) AS EndPosition,
          SUBSTRING(@Directory, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Directory, EndPosition + 1), 0), LEN(@Directory) + 1) - EndPosition - 1) AS Directory
  FROM Directories
  WHERE EndPosition < LEN(@Directory) + 1
  )
  INSERT INTO @Directories (ID, DirectoryPath, Mirror, Completed)
  SELECT ROW_NUMBER() OVER(ORDER BY StartPosition ASC) AS ID,
          Directory,
          0,
          0
  FROM Directories
  OPTION (MAXRECURSION 0)

  SET @MirrorDirectory = REPLACE(@MirrorDirectory, CHAR(10), '')
  SET @MirrorDirectory = REPLACE(@MirrorDirectory, CHAR(13), '')

  WHILE CHARINDEX(', ',@MirrorDirectory) > 0 SET @MirrorDirectory = REPLACE(@MirrorDirectory,', ',',')
  WHILE CHARINDEX(' ,',@MirrorDirectory) > 0 SET @MirrorDirectory = REPLACE(@MirrorDirectory,' ,',',')

  SET @MirrorDirectory = LTRIM(RTRIM(@MirrorDirectory));

  WITH Directories (StartPosition, EndPosition, Directory) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @MirrorDirectory, 1), 0), LEN(@MirrorDirectory) + 1) AS EndPosition,
         SUBSTRING(@MirrorDirectory, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @MirrorDirectory, 1), 0), LEN(@MirrorDirectory) + 1) - 1) AS Directory
  WHERE @MirrorDirectory IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @MirrorDirectory, EndPosition + 1), 0), LEN(@MirrorDirectory) + 1) AS EndPosition,
         SUBSTRING(@MirrorDirectory, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @MirrorDirectory, EndPosition + 1), 0), LEN(@MirrorDirectory) + 1) - EndPosition - 1) AS Directory
  FROM Directories
  WHERE EndPosition < LEN(@MirrorDirectory) + 1
  )
  INSERT INTO @Directories (ID, DirectoryPath, Mirror, Completed)
  SELECT (SELECT COUNT(*) FROM @Directories) + ROW_NUMBER() OVER(ORDER BY StartPosition ASC) AS ID,
         Directory,
         1,
         0
  FROM Directories
  OPTION (MAXRECURSION 0)

  ----------------------------------------------------------------------------------------------------
  --// Check directories                                                                          //--
  ----------------------------------------------------------------------------------------------------

  IF EXISTS (SELECT * FROM @Directories WHERE Mirror = 0 AND (NOT (DirectoryPath LIKE '_:' OR DirectoryPath LIKE '_:\%' OR DirectoryPath LIKE '\\%\%' OR (DirectoryPath LIKE '/%' AND @HostPlatform = 'Linux') OR DirectoryPath = 'NUL') OR DirectoryPath IS NULL OR LEFT(DirectoryPath,1) = ' ' OR RIGHT(DirectoryPath,1) = ' '))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Directory is not supported.', 16, 1
  END

  IF EXISTS (SELECT * FROM @Directories GROUP BY DirectoryPath HAVING COUNT(*) <> 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Directory is not supported.', 16, 2
  END

  IF (SELECT COUNT(*) FROM @Directories WHERE Mirror = 0) <> (SELECT COUNT(*) FROM @Directories WHERE Mirror = 1) AND (SELECT COUNT(*) FROM @Directories WHERE Mirror = 1) > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The number of directories for the parameters @Directory and @MirrorDirectory has to be the same.', 16, 3
  END

  IF (@Directory IS NOT NULL AND SERVERPROPERTY('EngineEdition') = 8) OR (@Directory IS NOT NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Directory is not supported.', 16, 4
  END

  IF EXISTS (SELECT * FROM @Directories WHERE Mirror = 0 AND DirectoryPath = 'NUL') AND EXISTS(SELECT * FROM @Directories WHERE Mirror = 0 AND DirectoryPath <> 'NUL')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Directory is not supported.', 16, 5
  END

  IF EXISTS (SELECT * FROM @Directories WHERE Mirror = 0 AND DirectoryPath = 'NUL') AND EXISTS(SELECT * FROM @Directories WHERE Mirror = 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'Mirrored backup is not supported when backing up to NUL', 16, 6
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS(SELECT * FROM @Directories WHERE Mirror = 1 AND (NOT (DirectoryPath LIKE '_:' OR DirectoryPath LIKE '_:\%' OR DirectoryPath LIKE '\\%\%' OR (DirectoryPath LIKE '/%' AND @HostPlatform = 'Linux')) OR DirectoryPath IS NULL OR LEFT(DirectoryPath,1) = ' ' OR RIGHT(DirectoryPath,1) = ' '))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorDirectory is not supported.', 16, 1
  END

  IF EXISTS (SELECT * FROM @Directories GROUP BY DirectoryPath HAVING COUNT(*) <> 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorDirectory is not supported.', 16, 2
  END

  IF @BackupSoftware IN('SQLBACKUP','SQLSAFE') AND (SELECT COUNT(*) FROM @Directories WHERE Mirror = 1) > 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorDirectory is not supported.', 16, 4
  END

  IF @MirrorDirectory IS NOT NULL AND SERVERPROPERTY('EngineEdition') = 8
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorDirectory is not supported.', 16, 5
  END

  IF @MirrorDirectory IS NOT NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorDirectory is not supported.', 16, 6
  END

  IF (@BackupSoftware IS NULL AND EXISTS(SELECT * FROM @Directories WHERE Mirror = 1) AND SERVERPROPERTY('EngineEdition') <> 3)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorDirectory is not supported. Mirrored backup to disk is only available in Enterprise and Developer Edition.', 16, 8
  END

  ----------------------------------------------------------------------------------------------------

  IF NOT EXISTS (SELECT * FROM @Errors WHERE Severity >= 16) AND @DirectoryCheck = 'Y'
  BEGIN
    WHILE (1 = 1)
    BEGIN
      SELECT TOP 1 @CurrentRootDirectoryID = ID,
                   @CurrentRootDirectoryPath = DirectoryPath
      FROM @Directories
      WHERE Completed = 0
      AND DirectoryPath <> 'NUL'
      ORDER BY ID ASC

      IF @@ROWCOUNT = 0
      BEGIN
        BREAK
      END

      INSERT INTO @DirectoryInfo (FileExists, FileIsADirectory, ParentDirectoryExists)
      EXECUTE [master].dbo.xp_fileexist @CurrentRootDirectoryPath

      IF NOT EXISTS (SELECT * FROM @DirectoryInfo WHERE FileExists = 0 AND FileIsADirectory = 1 AND ParentDirectoryExists = 1)
      BEGIN
        INSERT INTO @Errors ([Message], Severity, [State])
        SELECT 'The directory ' + @CurrentRootDirectoryPath + ' does not exist.', 16, 1
      END

      UPDATE @Directories
      SET Completed = 1
      WHERE ID = @CurrentRootDirectoryID

      SET @CurrentRootDirectoryID = NULL
      SET @CurrentRootDirectoryPath = NULL

      DELETE FROM @DirectoryInfo
    END
  END

  ----------------------------------------------------------------------------------------------------
  --// Select URLs                                                                                //--
  ----------------------------------------------------------------------------------------------------

  SET @URL = REPLACE(@URL, CHAR(10), '')
  SET @URL = REPLACE(@URL, CHAR(13), '')

  WHILE CHARINDEX(@StringDelimiter + ' ', @URL) > 0 SET @URL = REPLACE(@URL, @StringDelimiter + ' ', @StringDelimiter)
  WHILE CHARINDEX(' ' + @StringDelimiter, @URL) > 0 SET @URL = REPLACE(@URL, ' ' + @StringDelimiter, @StringDelimiter)

  SET @URL = LTRIM(RTRIM(@URL));

  WITH URLs (StartPosition, EndPosition, [URL]) AS
  (
  SELECT 1 AS StartPosition,
          ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @URL, 1), 0), LEN(@URL) + 1) AS EndPosition,
          SUBSTRING(@URL, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @URL, 1), 0), LEN(@URL) + 1) - 1) AS [URL]
  WHERE @URL IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
          ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @URL, EndPosition + 1), 0), LEN(@URL) + 1) AS EndPosition,
          SUBSTRING(@URL, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @URL, EndPosition + 1), 0), LEN(@URL) + 1) - EndPosition - 1) AS [URL]
  FROM URLs
  WHERE EndPosition < LEN(@URL) + 1
  )
  INSERT INTO @URLs (ID, DirectoryPath, Mirror)
  SELECT ROW_NUMBER() OVER(ORDER BY StartPosition ASC) AS ID,
          [URL],
          0
  FROM URLs
  OPTION (MAXRECURSION 0)

  SET @MirrorURL = REPLACE(@MirrorURL, CHAR(10), '')
  SET @MirrorURL = REPLACE(@MirrorURL, CHAR(13), '')

  WHILE CHARINDEX(@StringDelimiter + ' ', @MirrorURL) > 0 SET @MirrorURL = REPLACE(@MirrorURL, @StringDelimiter + ' ', @StringDelimiter)
  WHILE CHARINDEX(' ' + @StringDelimiter ,@MirrorURL) > 0 SET @MirrorURL = REPLACE(@MirrorURL, ' ' + @StringDelimiter, @StringDelimiter)

  SET @MirrorURL = LTRIM(RTRIM(@MirrorURL));

  WITH URLs (StartPosition, EndPosition, [URL]) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @MirrorURL, 1), 0), LEN(@MirrorURL) + 1) AS EndPosition,
         SUBSTRING(@MirrorURL, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @MirrorURL, 1), 0), LEN(@MirrorURL) + 1) - 1) AS [URL]
  WHERE @MirrorURL IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @MirrorURL, EndPosition + 1), 0), LEN(@MirrorURL) + 1) AS EndPosition,
         SUBSTRING(@MirrorURL, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @MirrorURL, EndPosition + 1), 0), LEN(@MirrorURL) + 1) - EndPosition - 1) AS [URL]
  FROM URLs
  WHERE EndPosition < LEN(@MirrorURL) + 1
  )
  INSERT INTO @URLs (ID, DirectoryPath, Mirror)
  SELECT (SELECT COUNT(*) FROM @URLs) + ROW_NUMBER() OVER(ORDER BY StartPosition ASC) AS ID,
         [URL],
         1
  FROM URLs
  OPTION (MAXRECURSION 0)

  ----------------------------------------------------------------------------------------------------
  --// Check URLs                                                                          //--
  ----------------------------------------------------------------------------------------------------

  IF EXISTS(SELECT * FROM @URLs WHERE Mirror = 0 AND NOT (DirectoryPath LIKE 'https://%/%' OR DirectoryPath LIKE 's3://%/%'))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @URL is not supported.', 16, 1
  END

  IF EXISTS (SELECT * FROM @URLs GROUP BY DirectoryPath HAVING COUNT(*) <> 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @URL is not supported.', 16, 2
  END

  IF (SELECT COUNT(*) FROM @URLs WHERE Mirror = 0) <> (SELECT COUNT(*) FROM @URLs WHERE Mirror = 1) AND (SELECT COUNT(*) FROM @URLs WHERE Mirror = 1) > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @URL is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS(SELECT * FROM @URLs WHERE Mirror = 1 AND NOT (DirectoryPath LIKE 'https://%/%' OR DirectoryPath LIKE 's3://%/%'))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorURL is not supported.', 16, 1
  END

  IF EXISTS (SELECT * FROM @URLs GROUP BY DirectoryPath HAVING COUNT(*) <> 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorURL is not supported.', 16, 2
  END

  IF (SELECT COUNT(*) FROM @URLs WHERE Mirror = 0) <> (SELECT COUNT(*) FROM @URLs WHERE Mirror = 1) AND (SELECT COUNT(*) FROM @URLs WHERE Mirror = 1) > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorURL is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------
  --// Get directory separator                                                                   //--
  ----------------------------------------------------------------------------------------------------

  SELECT @DirectorySeparator = CASE
  WHEN @URL IS NOT NULL THEN '/'
  WHEN @HostPlatform = 'Windows' THEN '\'
  WHEN @HostPlatform = 'Linux' THEN '/'
  END

  UPDATE @Directories
  SET DirectoryPath = LEFT(DirectoryPath,LEN(DirectoryPath) - 1)
  WHERE RIGHT(DirectoryPath,1) = @DirectorySeparator

  UPDATE @URLs
  SET DirectoryPath = LEFT(DirectoryPath,LEN(DirectoryPath) - 1)
  WHERE RIGHT(DirectoryPath,1) = @DirectorySeparator

  ----------------------------------------------------------------------------------------------------
  --// Get file extension                                                                         //--
  ----------------------------------------------------------------------------------------------------

  IF @FileExtensionFull IS NULL
  BEGIN
    SELECT @FileExtensionFull = CASE
    WHEN @BackupSoftware IS NULL THEN 'bak'
    WHEN @BackupSoftware = 'LITESPEED' THEN 'bak'
    WHEN @BackupSoftware = 'SQLBACKUP' THEN 'sqb'
    WHEN @BackupSoftware = 'SQLSAFE' THEN 'safe'
    END
  END

  IF @FileExtensionDiff IS NULL
  BEGIN
    SELECT @FileExtensionDiff = CASE
    WHEN @BackupSoftware IS NULL THEN 'bak'
    WHEN @BackupSoftware = 'LITESPEED' THEN 'bak'
    WHEN @BackupSoftware = 'SQLBACKUP' THEN 'sqb'
    WHEN @BackupSoftware = 'SQLSAFE' THEN 'safe'
    END
  END

  IF @FileExtensionLog IS NULL
  BEGIN
    SELECT @FileExtensionLog = CASE
    WHEN @BackupSoftware IS NULL THEN 'trn'
    WHEN @BackupSoftware = 'LITESPEED' THEN 'trn'
    WHEN @BackupSoftware = 'SQLBACKUP' THEN 'sqb'
    WHEN @BackupSoftware = 'SQLSAFE' THEN 'safe'
    END
  END

  ----------------------------------------------------------------------------------------------------
  --// Get default compression                                                                    //--
  ----------------------------------------------------------------------------------------------------

  IF @Compress IS NULL
  BEGIN
    SELECT @Compress = CASE WHEN @BackupSoftware IS NULL AND EXISTS(SELECT * FROM sys.configurations WHERE name = 'backup compression default' AND value_in_use = 1) THEN 'Y'
                            WHEN @BackupSoftware IS NULL AND NOT EXISTS(SELECT * FROM sys.configurations WHERE name = 'backup compression default' AND value_in_use = 1) THEN 'N'
                            WHEN @BackupSoftware IS NOT NULL AND (@CompressionLevel IS NULL OR @CompressionLevel > 0)  THEN 'Y'
                            WHEN @BackupSoftware IS NOT NULL AND @CompressionLevel = 0  THEN 'N' END
  END

  ----------------------------------------------------------------------------------------------------
  --// Get default compression algorithm                                                          //--
  ----------------------------------------------------------------------------------------------------

  IF @CompressionAlgorithm IS NULL AND @BackupSoftware IS NULL AND @Version >= 16
  BEGIN
    SELECT @CompressionAlgorithm = CASE WHEN @BackupSoftware IS NULL AND EXISTS(SELECT * FROM sys.configurations WHERE name = 'backup compression algorithm' AND value_in_use = 1) THEN 'MS_XPRESS'
                                        WHEN @BackupSoftware IS NULL AND EXISTS(SELECT * FROM sys.configurations WHERE name = 'backup compression algorithm' AND value_in_use = 2) THEN 'QAT_DEFLATE' END
  END

  ----------------------------------------------------------------------------------------------------
  --// Check input parameters                                                                     //--
  ----------------------------------------------------------------------------------------------------

  IF @BackupType NOT IN ('FULL','DIFF','LOG') OR @BackupType IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BackupType is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF SERVERPROPERTY('EngineEdition') = 8 AND NOT (@BackupType = 'FULL' AND @CopyOnly = 'Y')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'SQL Database Managed Instance only supports COPY_ONLY full backups.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Verify NOT IN ('Y','N') OR @Verify IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Verify is not supported.', 16, 1
  END

  IF @BackupSoftware = 'SQLSAFE' AND @Encrypt = 'Y' AND @Verify = 'Y'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Verify is not supported. Verify is not supported with encrypted backups with Idera SQL Safe Backup', 16, 2
  END

  IF @Verify = 'Y' AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Verify is not supported. Verify is not supported with Data Domain Boost', 16, 3
  END

  IF @Verify = 'Y' AND EXISTS(SELECT * FROM @Directories WHERE DirectoryPath = 'NUL')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Verify is not supported. Verify is not supported when backing up to NUL.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @CleanupTime < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CleanupTime is not supported.', 16, 1
  END

  IF @CleanupTime IS NOT NULL AND @URL IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CleanupTime is not supported. Cleanup is not supported on Azure Blob Storage.', 16, 2
  END

  IF @CleanupTime IS NOT NULL AND EXISTS(SELECT * FROM @Directories WHERE DirectoryPath = 'NUL')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CleanupTime is not supported. Cleanup is not supported when backing up to NUL.', 16, 4
  END

  IF @CleanupTime IS NOT NULL AND ((@DirectoryStructure NOT LIKE '%{DatabaseName}%' OR @DirectoryStructure IS NULL) OR (SERVERPROPERTY('IsHadrEnabled') = 1 AND (@AvailabilityGroupDirectoryStructure NOT LIKE '%{DatabaseName}%' OR @AvailabilityGroupDirectoryStructure IS NULL)))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CleanupTime is not supported. Cleanup is not supported if the token {DatabaseName} is not part of the directory.', 16, 5
  END

  IF @CleanupTime IS NOT NULL AND ((@DirectoryStructure NOT LIKE '%{BackupType}%' OR @DirectoryStructure IS NULL) OR (SERVERPROPERTY('IsHadrEnabled') = 1 AND (@AvailabilityGroupDirectoryStructure NOT LIKE '%{BackupType}%' OR @AvailabilityGroupDirectoryStructure IS NULL))) AND (SELECT COUNT(*) FROM (SELECT @FileExtensionFull AS FileExtension UNION SELECT @FileExtensionDiff UNION SELECT @FileExtensionLog) FileExtension) <> 3
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CleanupTime is not supported. Cleanup is not supported if the token {BackupType} is not part of the directory and the file extensions are not unique.', 16, 6
  END

  IF @CleanupTime IS NOT NULL AND @CopyOnly = 'Y' AND ((@DirectoryStructure NOT LIKE '%{CopyOnly}%' OR @DirectoryStructure IS NULL) OR (SERVERPROPERTY('IsHadrEnabled') = 1 AND (@AvailabilityGroupDirectoryStructure NOT LIKE '%{CopyOnly}%' OR @AvailabilityGroupDirectoryStructure IS NULL)))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CleanupTime is not supported. Cleanup is not supported if the token {CopyOnly} is not part of the directory.', 16, 7
  END

  ----------------------------------------------------------------------------------------------------

  IF @CleanupMode NOT IN('BEFORE_BACKUP','AFTER_BACKUP') OR @CleanupMode IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CleanupMode is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Compress NOT IN ('Y','N') OR @Compress IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Compress is not supported.', 16, 1
  END

  IF @Compress = 'Y' AND @BackupSoftware IS NULL AND NOT ((@Version >= 10 AND @Version < 10.5 AND SERVERPROPERTY('EngineEdition') = 3) OR (@Version >= 10.5 AND (SERVERPROPERTY('EngineEdition') IN (3, 8) OR SERVERPROPERTY('EditionID') IN (-1534726760, 284895786))))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Compress is not supported. Backup compression is not supported in this version and edition of SQL Server.', 16, 2
  END

  IF @Compress = 'N' AND @BackupSoftware IN ('LITESPEED','SQLBACKUP','SQLSAFE') AND (@CompressionLevel IS NULL OR @CompressionLevel >= 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Compress is not supported.', 16, 3
  END

  IF @Compress = 'Y' AND @BackupSoftware IN ('LITESPEED','SQLBACKUP','SQLSAFE') AND @CompressionLevel = 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Compress is not supported.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @CompressionAlgorithm NOT IN ('MS_XPRESS','QAT_DEFLATE')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CompressionAlgorithm is not supported. The allowed values are MS_XPRESS and QAT_DEFLATE.', 16, 1
  END

  IF @CompressionAlgorithm IS NOT NULL AND NOT (@Version >= 16)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CompressionAlgorithm is not supported. Specifying the compression algorithm is only supported in SQL Server 2022 and later.', 16, 2
  END

  IF @CompressionAlgorithm = 'QAT_DEFLATE' AND NOT (SERVERPROPERTY('EngineEdition') IN(2, 3))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CompressionAlgorithm is not supported. Setting the compression algorithm to QAT_DEFLATE is only supported in Standard and Enterprise Edition.', 16, 3
  END

  IF @CompressionAlgorithm IS NOT NULL AND @BackupSoftware IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CompressionAlgorithm is not supported. Setting the compression algorithm is only supported with SQL Server native backup', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @CopyOnly NOT IN ('Y','N') OR @CopyOnly IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CopyOnly is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @ChangeBackupType NOT IN ('Y','N') OR @ChangeBackupType IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ChangeBackupType is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @BackupSoftware NOT IN ('LITESPEED','SQLBACKUP','SQLSAFE','DATA_DOMAIN_BOOST')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BackupSoftware is not supported.', 16, 1
  END

  IF @BackupSoftware IS NOT NULL AND @HostPlatform = 'Linux'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BackupSoftware is not supported. Only native backups are supported on Linux', 16, 2
  END

  IF @BackupSoftware = 'LITESPEED' AND NOT EXISTS (SELECT * FROM [master].sys.objects WHERE [type] = 'X' AND [name] = 'xp_backup_database')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'LiteSpeed for SQL Server is not installed. Download https://www.quest.com/products/litespeed-for-sql-server/.', 16, 3
  END

  IF @BackupSoftware = 'SQLBACKUP' AND NOT EXISTS (SELECT * FROM [master].sys.objects WHERE [type] = 'X' AND [name] = 'sqlbackup')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'Red Gate SQL Backup Pro is not installed. Download https://www.red-gate.com/products/dba/sql-backup/.', 16, 4
  END

  IF @BackupSoftware = 'SQLSAFE' AND NOT EXISTS (SELECT * FROM [master].sys.objects WHERE [type] = 'X' AND [name] = 'xp_ss_backup')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'Idera SQL Safe Backup is not installed. Download https://www.idera.com/productssolutions/sqlserver/sqlsafebackup.', 16, 5
  END

  IF @BackupSoftware = 'DATA_DOMAIN_BOOST' AND NOT EXISTS (SELECT * FROM [master].sys.objects WHERE [type] = 'PC' AND [name] = 'emc_run_backup')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'EMC Data Domain Boost is not installed. Download https://www.emc.com/en-us/data-protection/data-domain.htm.', 16, 6
  END

  ----------------------------------------------------------------------------------------------------

  IF @Checksum NOT IN ('Y','N') OR @Checksum IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Checksum is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @BlockSize NOT IN (512,1024,2048,4096,8192,16384,32768,65536)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BlockSize is not supported.', 16, 1
  END

  IF @BlockSize IS NOT NULL AND @BackupSoftware = 'SQLBACKUP'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BlockSize is not supported. This parameter is not supported with Redgate SQL Backup Pro', 16, 2
  END

  IF @BlockSize IS NOT NULL AND @BackupSoftware = 'SQLSAFE'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BlockSize is not supported. This parameter is not supported with Idera SQL Safe', 16, 3
  END

  IF @BlockSize IS NOT NULL AND @URL IS NOT NULL AND @Credential IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'BLOCKSIZE is not supported when backing up to URL with page blobs. See https://docs.microsoft.com/en-us/sql/relational-databases/backup-restore/sql-server-backup-to-url', 16, 4
  END

  IF @BlockSize IS NOT NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BlockSize is not supported. This parameter is not supported with Data Domain Boost', 16, 5
  END

  ----------------------------------------------------------------------------------------------------

  IF @BufferCount <= 0 OR @BufferCount > 2147483647
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BufferCount is not supported.', 16, 1
  END

  IF @BufferCount IS NOT NULL AND @BackupSoftware = 'SQLBACKUP'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BufferCount is not supported.', 16, 2
  END

  IF @BufferCount IS NOT NULL AND @BackupSoftware = 'SQLSAFE'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BufferCount is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF @MaxTransferSize < 65536 OR @MaxTransferSize > 20971520
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxTransferSize is not supported.', 16, 1
  END

  IF @MaxTransferSize > 1048576 AND @BackupSoftware = 'SQLBACKUP'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxTransferSize is not supported.', 16, 2
  END

  IF @MaxTransferSize IS NOT NULL AND @BackupSoftware = 'SQLSAFE'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxTransferSize is not supported.', 16, 3
  END

  IF @MaxTransferSize IS NOT NULL AND @URL IS NOT NULL AND @Credential IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'MAXTRANSFERSIZE is not supported when backing up to URL with page blobs. See https://docs.microsoft.com/en-us/sql/relational-databases/backup-restore/sql-server-backup-to-url', 16, 4
  END

  IF @MaxTransferSize IS NOT NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxTransferSize is not supported.', 16, 5
  END

  ----------------------------------------------------------------------------------------------------

  IF @NumberOfFiles < 1 OR @NumberOfFiles > 64
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NumberOfFiles is not supported.', 16, 1
  END

  IF @NumberOfFiles > 32 AND @BackupSoftware = 'SQLBACKUP'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NumberOfFiles is not supported.', 16, 2
  END

  IF @NumberOfFiles < (SELECT COUNT(*) FROM @Directories WHERE Mirror = 0)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NumberOfFiles is not supported.', 16, 3
  END

  IF @NumberOfFiles % (SELECT NULLIF(COUNT(*),0) FROM @Directories WHERE Mirror = 0) > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NumberOfFiles is not supported.', 16, 4
  END

  IF @URL IS NOT NULL AND @Credential IS NOT NULL AND @NumberOfFiles <> 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'Backup striping to URL with page blobs is not supported. See https://docs.microsoft.com/en-us/sql/relational-databases/backup-restore/sql-server-backup-to-url', 16, 5
  END

  IF @NumberOfFiles > 1 AND @BackupSoftware IN('SQLBACKUP','SQLSAFE') AND EXISTS(SELECT * FROM @Directories WHERE Mirror = 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NumberOfFiles is not supported.', 16, 6
  END

  IF @NumberOfFiles > 32 AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NumberOfFiles is not supported.', 16, 7
  END

  IF @NumberOfFiles < (SELECT COUNT(*) FROM @URLs WHERE Mirror = 0)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NumberOfFiles is not supported.', 16, 8
  END

  IF @NumberOfFiles % (SELECT NULLIF(COUNT(*),0) FROM @URLs WHERE Mirror = 0) > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NumberOfFiles is not supported.', 16, 9
  END

  IF @NumberOfFiles > 32 AND @URL LIKE 's3%' AND @MirrorURL LIKE 's3%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NumberOfFiles is not supported. The maximum number of files when performing mirrored backups to S3 storage is 32.', 16, 10
  END

  ----------------------------------------------------------------------------------------------------

  IF @MinBackupSizeForMultipleFiles <= 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MinBackupSizeForMultipleFiles is not supported.', 16, 1
  END

  IF @MinBackupSizeForMultipleFiles IS NOT NULL AND @NumberOfFiles IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MinBackupSizeForMultipleFiles is not supported. This parameter can only be used together with @NumberOfFiles.', 16, 2
  END

  IF @MinBackupSizeForMultipleFiles IS NOT NULL AND @BackupType = 'DIFF' AND NOT EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_file_space_usage') AND name = 'modified_extent_page_count')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MinBackupSizeForMultipleFiles is not supported. The column sys.dm_db_file_space_usage.modified_extent_page_count is not available in this version of SQL Server.', 16, 3
  END

  IF @MinBackupSizeForMultipleFiles IS NOT NULL AND @BackupType = 'LOG' AND NOT EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_log_stats') AND name = 'log_since_last_log_backup_mb')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MinBackupSizeForMultipleFiles is not supported. The column sys.dm_db_log_stats.log_since_last_log_backup_mb is not available in this version of SQL Server.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @MaxFileSize <= 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxFileSize is not supported.', 16, 1
  END

  IF @MaxFileSize IS NOT NULL AND @NumberOfFiles IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameters @MaxFileSize and @NumberOfFiles cannot be used together.', 16, 2
  END

  IF @MaxFileSize IS NOT NULL AND @BackupType = 'DIFF' AND NOT EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_file_space_usage') AND name = 'modified_extent_page_count')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxFileSize is not supported. The column sys.dm_db_file_space_usage.modified_extent_page_count is not available in this version of SQL Server.', 16, 3
  END

  IF @MaxFileSize IS NOT NULL AND @BackupType = 'LOG' AND NOT EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_log_stats') AND name = 'log_since_last_log_backup_mb')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxFileSize is not supported. The column sys.dm_db_log_stats.log_since_last_log_backup_mb is not available in this version of SQL Server.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF (@BackupSoftware IS NULL AND @CompressionLevel IS NOT NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CompressionLevel is not supported.', 16, 1
  END

  IF @BackupSoftware = 'LITESPEED' AND (@CompressionLevel < 0  OR @CompressionLevel > 8)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CompressionLevel is not supported.', 16, 2
  END

  IF @BackupSoftware = 'SQLBACKUP' AND (@CompressionLevel < 0 OR @CompressionLevel > 4)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CompressionLevel is not supported.', 16, 3
  END

  IF @BackupSoftware = 'SQLSAFE' AND (@CompressionLevel < 1 OR @CompressionLevel > 4)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CompressionLevel is not supported.', 16, 4
  END

  IF @CompressionLevel IS NOT NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CompressionLevel is not supported.', 16, 5
  END

  ----------------------------------------------------------------------------------------------------

  IF LEN(@Description) > 255
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Description is not supported.', 16, 1
  END

  IF @BackupSoftware = 'LITESPEED' AND LEN(@Description) > 128
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Description is not supported.', 16, 2
  END

  IF @BackupSoftware = 'DATA_DOMAIN_BOOST' AND LEN(@Description) > 254
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Description is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF LEN(@BackupSetName) > 128
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BackupSetName is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Threads IS NOT NULL AND (@BackupSoftware NOT IN('LITESPEED','SQLBACKUP','SQLSAFE') OR @BackupSoftware IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Threads is not supported.', 16, 1
  END

  IF @BackupSoftware = 'LITESPEED' AND (@Threads < 1 OR @Threads > 32)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Threads is not supported.', 16, 2
  END

  IF @BackupSoftware = 'SQLBACKUP' AND (@Threads < 2 OR @Threads > 32)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Threads is not supported.', 16, 3
  END

  IF @BackupSoftware = 'SQLSAFE' AND (@Threads < 1 OR @Threads > 64)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Threads is not supported.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @Throttle < 1 OR @Throttle > 100
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Throttle is not supported.', 16, 1
  END

  IF @Throttle IS NOT NULL AND (@BackupSoftware NOT IN('LITESPEED') OR @BackupSoftware IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Throttle is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @Encrypt NOT IN('Y','N') OR @Encrypt IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Encrypt is not supported.', 16, 1
  END

  IF @Encrypt = 'Y' AND @BackupSoftware IS NULL AND NOT (@Version >= 12 AND (SERVERPROPERTY('EngineEdition') IN(3, 8) OR SERVERPROPERTY('EditionID') IN(-1534726760, 284895786)))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Encrypt is not supported.', 16, 2
  END

  IF @Encrypt = 'Y' AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Encrypt is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF @BackupSoftware IS NULL AND @Encrypt = 'Y' AND (@EncryptionAlgorithm NOT IN('AES_128','AES_192','AES_256','TRIPLE_DES_3KEY') OR @EncryptionAlgorithm IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @EncryptionAlgorithm is not supported.', 16, 1
  END

  IF @BackupSoftware = 'LITESPEED' AND @Encrypt = 'Y' AND (@EncryptionAlgorithm NOT IN('RC2_40','RC2_56','RC2_112','RC2_128','TRIPLE_DES_3KEY','RC4_128','AES_128','AES_192','AES_256') OR @EncryptionAlgorithm IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @EncryptionAlgorithm is not supported.', 16, 2
  END

  IF @BackupSoftware = 'SQLBACKUP' AND @Encrypt = 'Y' AND (@EncryptionAlgorithm NOT IN('AES_128','AES_256') OR @EncryptionAlgorithm IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @EncryptionAlgorithm is not supported.', 16, 3
  END

  IF @BackupSoftware = 'SQLSAFE' AND @Encrypt = 'Y' AND (@EncryptionAlgorithm NOT IN('AES_128','AES_256') OR @EncryptionAlgorithm IS NULL)
  OR (@EncryptionAlgorithm IS NOT NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @EncryptionAlgorithm is not supported.', 16, 4
  END

  IF @EncryptionAlgorithm IS NOT NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @EncryptionAlgorithm is not supported.', 16, 5
  END

  ----------------------------------------------------------------------------------------------------

  IF (NOT (@BackupSoftware IS NULL AND @Encrypt = 'Y') AND @ServerCertificate IS NOT NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ServerCertificate is not supported.', 16, 1
  END

  IF @BackupSoftware IS NULL AND @Encrypt = 'Y' AND @ServerCertificate IS NULL AND @ServerAsymmetricKey IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ServerCertificate is not supported.', 16, 2
  END

  IF @BackupSoftware IS NULL AND @Encrypt = 'Y' AND @ServerCertificate IS NOT NULL AND @ServerAsymmetricKey IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ServerCertificate is not supported.', 16, 3
  END

  IF @ServerCertificate IS NOT NULL AND NOT EXISTS(SELECT * FROM master.sys.certificates WHERE name = @ServerCertificate)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ServerCertificate is not supported.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF NOT (@BackupSoftware IS NULL AND @Encrypt = 'Y') AND @ServerAsymmetricKey IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ServerAsymmetricKey is not supported.', 16, 1
  END

  IF @BackupSoftware IS NULL AND @Encrypt = 'Y' AND @ServerAsymmetricKey IS NULL AND @ServerCertificate IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ServerAsymmetricKey is not supported.', 16, 2
  END

  IF @BackupSoftware IS NULL AND @Encrypt = 'Y' AND @ServerAsymmetricKey IS NOT NULL AND @ServerCertificate IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ServerAsymmetricKey is not supported.', 16, 3
  END

  IF @ServerAsymmetricKey IS NOT NULL AND NOT EXISTS(SELECT * FROM master.sys.asymmetric_keys WHERE name = @ServerAsymmetricKey)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ServerAsymmetricKey is not supported.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @EncryptionKey IS NOT NULL AND @BackupSoftware IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @EncryptionKey is not supported.', 16, 1
  END

  IF @EncryptionKey IS NOT NULL AND @Encrypt = 'N'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @EncryptionKey is not supported.', 16, 2
  END

  IF @EncryptionKey IS NULL AND @Encrypt = 'Y' AND @BackupSoftware IN('LITESPEED','SQLBACKUP','SQLSAFE')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @EncryptionKey is not supported.', 16, 3
  END

  IF @EncryptionKey IS NOT NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @EncryptionKey is not supported.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @ReadWriteFileGroups NOT IN('Y','N') OR @ReadWriteFileGroups IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ReadWriteFileGroups is not supported.', 16, 1
  END

  IF @ReadWriteFileGroups = 'Y' AND @BackupType = 'LOG'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ReadWriteFileGroups is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @OverrideBackupPreference NOT IN('Y','N') OR @OverrideBackupPreference IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @OverrideBackupPreference is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @NoRecovery NOT IN('Y','N') OR @NoRecovery IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NoRecovery is not supported.', 16, 1
  END

  IF @NoRecovery = 'Y' AND @BackupType <> 'LOG'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NoRecovery is not supported.', 16, 2
  END

  IF @NoRecovery = 'Y' AND @BackupSoftware = 'SQLSAFE'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NoRecovery is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF @URL IS NOT NULL AND @Directory IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @URL is not supported.', 16, 1
  END

  IF @URL IS NOT NULL AND @MirrorDirectory IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @URL is not supported.', 16, 2
  END

  IF @URL IS NOT NULL AND @Version < 11.03339
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @URL is not supported.', 16, 3
  END

  IF @URL IS NOT NULL AND @BackupSoftware IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @URL is not supported.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @Credential IS NULL AND @URL IS NOT NULL AND NOT (@Version >= 13 OR SERVERPROPERTY('EngineEdition') = 8)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Credential is not supported.', 16, 1
  END

  IF @Credential IS NOT NULL AND @URL IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Credential is not supported.', 16, 2
  END

  IF @URL IS NOT NULL AND @Credential IS NULL AND NOT EXISTS(SELECT * FROM sys.credentials WHERE UPPER(credential_identity) IN('SHARED ACCESS SIGNATURE','MANAGED IDENTITY','S3 ACCESS KEY'))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Credential is not supported.', 16, 3
  END

  IF @Credential IS NOT NULL AND NOT EXISTS(SELECT * FROM sys.credentials WHERE name = @Credential)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Credential is not supported.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @MirrorCleanupTime < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorCleanupTime is not supported.', 16, 1
  END

  IF @MirrorCleanupTime IS NOT NULL AND @MirrorDirectory IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorCleanupTime is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @MirrorCleanupMode NOT IN('BEFORE_BACKUP','AFTER_BACKUP') OR @MirrorCleanupMode IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorCleanupMode is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @MirrorURL IS NOT NULL AND @Directory IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorURL is not supported.', 16, 1
  END

  IF @MirrorURL IS NOT NULL AND @MirrorDirectory IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorURL is not supported.', 16, 2
  END

  IF @MirrorURL IS NOT NULL AND @Version < 11.03339
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorURL is not supported.', 16, 3
  END

  IF @MirrorURL IS NOT NULL AND @BackupSoftware IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorURL is not supported.', 16, 4
  END

  IF @MirrorURL IS NOT NULL AND @URL IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MirrorURL is not supported.', 16, 5
  END

  ----------------------------------------------------------------------------------------------------

  IF @Updateability NOT IN('READ_ONLY','READ_WRITE','ALL') OR @Updateability IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Updateability is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @AdaptiveCompression NOT IN('SIZE','SPEED')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AdaptiveCompression is not supported.', 16, 1
  END

  IF @AdaptiveCompression IS NOT NULL AND (@BackupSoftware NOT IN('LITESPEED') OR @BackupSoftware IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AdaptiveCompression is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @ModificationLevel IS NOT NULL AND NOT EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_file_space_usage') AND name = 'modified_extent_page_count')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ModificationLevel is not supported.', 16, 1
  END

  IF @ModificationLevel <= 0 OR @ModificationLevel > 100
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ModificationLevel is not supported.', 16, 2
  END

  IF @ModificationLevel IS NOT NULL AND @ChangeBackupType = 'N'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameter @ModificationLevel can only be used together with @ChangeBackupType = ''Y''.', 16, 3
  END

  IF @ModificationLevel IS NOT NULL AND @BackupType <> 'DIFF'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameter @ModificationLevel can only be used for differential backups.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @MinDatabaseSizeForDifferentialBackup <= 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MinDatabaseSizeForDifferentialBackup is not supported.', 16, 1
  END

  IF @MinDatabaseSizeForDifferentialBackup IS NOT NULL AND @BackupType <> 'DIFF'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameter @MinDatabaseSizeForDifferentialBackup can only be used for differential backups.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @LogSizeSinceLastLogBackup IS NOT NULL AND NOT EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_log_stats') AND name = 'log_since_last_log_backup_mb')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LogSizeSinceLastLogBackup is not supported.', 16, 1
  END

  IF @LogSizeSinceLastLogBackup IS NOT NULL AND @BackupType <> 'LOG'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LogSizeSinceLastLogBackup is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @TimeSinceLastLogBackup IS NOT NULL AND NOT EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_log_stats') AND name = 'log_backup_time')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @TimeSinceLastLogBackup is not supported.', 16, 1
  END

  IF @TimeSinceLastLogBackup IS NOT NULL AND @BackupType <> 'LOG'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @TimeSinceLastLogBackup is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF (@TimeSinceLastLogBackup IS NOT NULL AND @LogSizeSinceLastLogBackup IS NULL) OR (@TimeSinceLastLogBackup IS NULL AND @LogSizeSinceLastLogBackup IS NOT NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameters @TimeSinceLastLogBackup and @LogSizeSinceLastLogBackup can only be used together.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @DataDomainBoostHost IS NOT NULL AND (@BackupSoftware <> 'DATA_DOMAIN_BOOST' OR @BackupSoftware IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DataDomainBoostHost is not supported.', 16, 1
  END

  IF @DataDomainBoostHost IS NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DataDomainBoostHost is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @DataDomainBoostUser IS NOT NULL AND (@BackupSoftware <> 'DATA_DOMAIN_BOOST' OR @BackupSoftware IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DataDomainBoostUser is not supported.', 16, 1
  END

  IF @DataDomainBoostUser IS NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DataDomainBoostUser is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @DataDomainBoostDevicePath IS NOT NULL AND (@BackupSoftware <> 'DATA_DOMAIN_BOOST' OR @BackupSoftware IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DataDomainBoostDevicePath is not supported.', 16, 1
  END

  IF @DataDomainBoostDevicePath IS NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DataDomainBoostDevicePath is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @DataDomainBoostLockboxPath IS NOT NULL AND (@BackupSoftware <> 'DATA_DOMAIN_BOOST' OR @BackupSoftware IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DataDomainBoostLockboxPath is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @DirectoryStructure = ''
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DirectoryStructure is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @AvailabilityGroupDirectoryStructure = ''
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroupDirectoryStructure is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @DirectoryStructureCase NOT IN('LOWER','UPPER')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DirectoryStructureCase is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @FileName IS NULL OR @FileName = ''
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileName is not supported.', 16, 1
  END

  IF @FileName NOT LIKE '%.{FileExtension}'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileName is not supported.', 16, 2
  END

  IF (@NumberOfFiles > 1 AND @FileName NOT LIKE '%{FileNumber}%')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileName is not supported.', 16, 3
  END

  IF @FileName LIKE '%{DirectorySeparator}%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileName is not supported.', 16, 4
  END

  IF @FileName LIKE '%/%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileName is not supported.', 16, 5
  END

  IF @FileName LIKE '%\%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileName is not supported.', 16, 6
  END

  ----------------------------------------------------------------------------------------------------

  IF (SERVERPROPERTY('IsHadrEnabled') = 1 AND @AvailabilityGroupFileName IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroupFileName is not supported.', 16, 1
  END

  IF @AvailabilityGroupFileName = ''
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroupFileName is not supported.', 16, 2
  END

  IF @AvailabilityGroupFileName NOT LIKE '%.{FileExtension}'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroupFileName is not supported.', 16, 3
  END

  IF (@NumberOfFiles > 1 AND @AvailabilityGroupFileName NOT LIKE '%{FileNumber}%')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroupFileName is not supported.', 16, 4
  END

  IF @AvailabilityGroupFileName LIKE '%{DirectorySeparator}%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroupFileName is not supported.', 16, 5
  END

  IF @AvailabilityGroupFileName LIKE '%/%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroupFileName is not supported.', 16, 6
  END

  IF @AvailabilityGroupFileName LIKE '%\%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroupFileName is not supported.', 16, 7
  END

  ----------------------------------------------------------------------------------------------------

  IF @FileNameCase NOT IN('LOWER','UPPER')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileNameCase is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS (SELECT * FROM (SELECT REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(@DirectoryStructure,'{DirectorySeparator}',''),'{ServerName}',''),'{InstanceName}',''),'{ServiceName}',''),'{ClusterName}',''),'{AvailabilityGroupName}',''),'{DatabaseName}',''),'{BackupType}',''),'{Partial}',''),'{CopyOnly}',''),'{Description}',''),'{BackupSetName}',''),'{Year}',''),'{Month}',''),'{Day}',''),'{Week}',''),'{Weekday}',''),'{Hour}',''),'{Minute}',''),'{Second}',''),'{Millisecond}',''),'{Microsecond}',''),'{MajorVersion}',''),'{MinorVersion}','') AS DirectoryStructure) Temp WHERE DirectoryStructure LIKE '%{%' OR DirectoryStructure LIKE '%}%')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameter @DirectoryStructure contains one or more tokens that are not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS (SELECT * FROM (SELECT REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(@AvailabilityGroupDirectoryStructure,'{DirectorySeparator}',''),'{ServerName}',''),'{InstanceName}',''),'{ServiceName}',''),'{ClusterName}',''),'{AvailabilityGroupName}',''),'{DatabaseName}',''),'{BackupType}',''),'{Partial}',''),'{CopyOnly}',''),'{Description}',''),'{BackupSetName}',''),'{Year}',''),'{Month}',''),'{Day}',''),'{Week}',''),'{Weekday}',''),'{Hour}',''),'{Minute}',''),'{Second}',''),'{Millisecond}',''),'{Microsecond}',''),'{MajorVersion}',''),'{MinorVersion}','') AS AvailabilityGroupDirectoryStructure) Temp WHERE AvailabilityGroupDirectoryStructure LIKE '%{%' OR AvailabilityGroupDirectoryStructure LIKE '%}%')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameter @AvailabilityGroupDirectoryStructure contains one or more tokens that are not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS (SELECT * FROM (SELECT REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(@FileName,'{DirectorySeparator}',''),'{ServerName}',''),'{InstanceName}',''),'{ServiceName}',''),'{ClusterName}',''),'{AvailabilityGroupName}',''),'{DatabaseName}',''),'{BackupType}',''),'{Partial}',''),'{CopyOnly}',''),'{Description}',''),'{BackupSetName}',''),'{Year}',''),'{Month}',''),'{Day}',''),'{Week}',''),'{Weekday}',''),'{Hour}',''),'{Minute}',''),'{Second}',''),'{Millisecond}',''),'{Microsecond}',''),'{FileNumber}',''),'{NumberOfFiles}',''),'{FileExtension}',''),'{MajorVersion}',''),'{MinorVersion}','') AS [FileName]) Temp WHERE [FileName] LIKE '%{%' OR [FileName] LIKE '%}%')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameter @FileName contains one or more tokens that are not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS (SELECT * FROM (SELECT REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(@AvailabilityGroupFileName,'{DirectorySeparator}',''),'{ServerName}',''),'{InstanceName}',''),'{ServiceName}',''),'{ClusterName}',''),'{AvailabilityGroupName}',''),'{DatabaseName}',''),'{BackupType}',''),'{Partial}',''),'{CopyOnly}',''),'{Description}',''),'{BackupSetName}',''),'{Year}',''),'{Month}',''),'{Day}',''),'{Week}',''),'{Weekday}',''),'{Hour}',''),'{Minute}',''),'{Second}',''),'{Millisecond}',''),'{Microsecond}',''),'{FileNumber}',''),'{NumberOfFiles}',''),'{FileExtension}',''),'{MajorVersion}',''),'{MinorVersion}','') AS AvailabilityGroupFileName) Temp WHERE AvailabilityGroupFileName LIKE '%{%' OR AvailabilityGroupFileName LIKE '%}%')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameter @AvailabilityGroupFileName contains one or more tokens that are not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @TokenTimezone NOT IN('LOCAL','UTC') OR @TokenTimezone IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @TokenTimezone is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @FileExtensionFull LIKE '%.%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileExtensionFull is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @FileExtensionDiff LIKE '%.%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileExtensionDiff is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @FileExtensionLog LIKE '%.%'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileExtensionLog is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Init NOT IN('Y','N') OR @Init IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Init is not supported.', 16, 1
  END

  IF @Init = 'Y' AND @BackupType = 'LOG'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Init is not supported.', 16, 2
  END

  IF @Init = 'Y' AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Init is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF @Format NOT IN('Y','N') OR @Format IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Format is not supported.', 16, 1
  END

  IF @Format = 'Y' AND @BackupType = 'LOG'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Format is not supported.', 16, 2
  END

  IF @Format = 'Y' AND @BackupSoftware = 'DATA_DOMAIN_BOOST'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Format is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF @ObjectLevelRecoveryMap NOT IN('Y','N') OR @ObjectLevelRecoveryMap IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ObjectLevelRecovery is not supported.', 16, 1
  END

  IF @ObjectLevelRecoveryMap = 'Y' AND @BackupSoftware IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ObjectLevelRecovery is not supported.', 16, 2
  END

  IF @ObjectLevelRecoveryMap = 'Y' AND @BackupSoftware <> 'LITESPEED'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ObjectLevelRecovery is not supported.', 16, 3
  END

  IF @ObjectLevelRecoveryMap = 'Y' AND @BackupType = 'LOG'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ObjectLevelRecovery is not supported.', 16, 4
  END

  ----------------------------------------------------------------------------------------------------

  IF @ExcludeLogShippedFromLogBackup NOT IN('Y','N') OR @ExcludeLogShippedFromLogBackup IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ExcludeLogShippedFromLogBackup is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @DirectoryCheck NOT IN('Y','N') OR @DirectoryCheck IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DirectoryCheck is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @BackupOptions IS NOT NULL AND @URL IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @BackupOptions is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Stats <= 0 OR @Stats > 100
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Stats is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @ExpireDate IS NOT NULL AND @BackupSoftware <> 'LITESPEED'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ExpireDate is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @RetainDays < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @RetainDays is not supported.', 16, 1
  END

  IF @RetainDays IS NOT NULL AND @BackupSoftware <> 'LITESPEED'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @RetainDays is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @StringDelimiter IS NULL OR LEN(@StringDelimiter) > 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @StringDelimiter is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @DatabaseOrder NOT IN('DATABASE_NAME_ASC','DATABASE_NAME_DESC','DATABASE_SIZE_ASC','DATABASE_SIZE_DESC','LOG_SIZE_SINCE_LAST_LOG_BACKUP_ASC','LOG_SIZE_SINCE_LAST_LOG_BACKUP_DESC')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported.', 16, 1
  END

  IF @DatabaseOrder IN('LOG_SIZE_SINCE_LAST_LOG_BACKUP_ASC','LOG_SIZE_SINCE_LAST_LOG_BACKUP_DESC') AND NOT EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_log_stats') AND name = 'log_since_last_log_backup_mb')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported. The column sys.dm_db_log_stats.log_since_last_log_backup_mb is not available in this version of SQL Server.', 16, 2
  END

  IF @DatabaseOrder IS NOT NULL AND SERVERPROPERTY('EngineEdition') = 5
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF @DatabasesInParallel NOT IN('Y','N') OR @DatabasesInParallel IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabasesInParallel is not supported.', 16, 1
  END

  IF @DatabasesInParallel = 'Y' AND SERVERPROPERTY('EngineEdition') = 5
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabasesInParallel is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @LogToTable NOT IN('Y','N') OR @LogToTable IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LogToTable is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Execute NOT IN('Y','N') OR @Execute IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Execute is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS(SELECT * FROM @Errors)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The documentation is available at https://ola.hallengren.com/sql-server-backup.html.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Check that selected databases and availability groups exist                                //--
  ----------------------------------------------------------------------------------------------------

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @SelectedDatabases
  WHERE DatabaseName NOT LIKE '%[%]%'
  AND DatabaseName NOT IN (SELECT DatabaseName FROM @tmpDatabases)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following databases in the @Databases parameter do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(AvailabilityGroupName) + ', '
  FROM @SelectedAvailabilityGroups
  WHERE AvailabilityGroupName NOT LIKE '%[%]%'
  AND AvailabilityGroupName NOT IN (SELECT AvailabilityGroupName FROM @tmpAvailabilityGroups)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following availability groups do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Check @@SERVERNAME                                                                         //--
  ----------------------------------------------------------------------------------------------------

  IF UPPER(@@SERVERNAME) <> UPPER(CAST(SERVERPROPERTY('ServerName') AS nvarchar(max))) AND SERVERPROPERTY('IsHadrEnabled') = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The @@SERVERNAME does not match SERVERPROPERTY(''ServerName''). See ' + CASE WHEN SERVERPROPERTY('IsClustered') = 0 THEN 'https://docs.microsoft.com/en-us/sql/database-engine/install-windows/rename-a-computer-that-hosts-a-stand-alone-instance-of-sql-server' WHEN SERVERPROPERTY('IsClustered') = 1 THEN 'https://docs.microsoft.com/en-us/sql/sql-server/failover-clusters/install/rename-a-sql-server-failover-cluster-instance' END + '.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Raise errors                                                                               //--
  ----------------------------------------------------------------------------------------------------

  DECLARE ErrorCursor CURSOR FAST_FORWARD FOR SELECT [Message], Severity, [State] FROM @Errors ORDER BY [ID] ASC

  OPEN ErrorCursor

  FETCH ErrorCursor INTO @CurrentMessage, @CurrentSeverity, @CurrentState

  WHILE @@FETCH_STATUS = 0
  BEGIN
    RAISERROR('%s', @CurrentSeverity, @CurrentState, @CurrentMessage) WITH NOWAIT
    RAISERROR(@EmptyLine, 10, 1) WITH NOWAIT

    FETCH NEXT FROM ErrorCursor INTO @CurrentMessage, @CurrentSeverity, @CurrentState
  END

  CLOSE ErrorCursor

  DEALLOCATE ErrorCursor

  IF EXISTS (SELECT * FROM @Errors WHERE Severity >= 16)
  BEGIN
    SET @ReturnCode = 50000
    GOTO Logging
  END

  ----------------------------------------------------------------------------------------------------
  --// Check Availability Group cluster name                                                      //--
  ----------------------------------------------------------------------------------------------------

  IF @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
  BEGIN
    SELECT @Cluster = NULLIF(cluster_name,'')
    FROM sys.dm_hadr_cluster
  END

  ----------------------------------------------------------------------------------------------------
  --// Update database order                                                                      //--
  ----------------------------------------------------------------------------------------------------

  IF @DatabaseOrder IN('DATABASE_SIZE_ASC','DATABASE_SIZE_DESC')
  BEGIN
    UPDATE tmpDatabases
    SET DatabaseSize = (SELECT SUM(CAST(size AS bigint)) FROM sys.master_files WHERE [type] = 0 AND database_id = DB_ID(tmpDatabases.DatabaseName))
    FROM @tmpDatabases tmpDatabases
  END

  IF @DatabaseOrder IN('LOG_SIZE_SINCE_LAST_LOG_BACKUP_ASC','LOG_SIZE_SINCE_LAST_LOG_BACKUP_DESC')
  BEGIN
    UPDATE tmpDatabases
    SET LogSizeSinceLastLogBackup = (SELECT log_since_last_log_backup_mb FROM sys.dm_db_log_stats(DB_ID(tmpDatabases.DatabaseName)))
    FROM @tmpDatabases tmpDatabases
  END

  IF @DatabaseOrder IS NULL
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY StartPosition ASC, DatabaseName ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_NAME_ASC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseName ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_NAME_DESC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseName DESC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_SIZE_ASC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseSize ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_SIZE_DESC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseSize DESC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'LOG_SIZE_SINCE_LAST_LOG_BACKUP_ASC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY LogSizeSinceLastLogBackup ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'LOG_SIZE_SINCE_LAST_LOG_BACKUP_DESC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY LogSizeSinceLastLogBackup DESC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END

  ----------------------------------------------------------------------------------------------------
  --// Update the queue                                                                           //--
  ----------------------------------------------------------------------------------------------------

  IF @DatabasesInParallel = 'Y'
  BEGIN

    BEGIN TRY

      SELECT @QueueID = QueueID
      FROM dbo.[Queue]
      WHERE SchemaName = @SchemaName
      AND ObjectName = @ObjectName
      AND [Parameters] = @Parameters

      IF @QueueID IS NULL
      BEGIN
        BEGIN TRANSACTION

        SELECT @QueueID = QueueID
        FROM dbo.[Queue] WITH (UPDLOCK, HOLDLOCK)
        WHERE SchemaName = @SchemaName
        AND ObjectName = @ObjectName
        AND [Parameters] = @Parameters

        IF @QueueID IS NULL
        BEGIN
          INSERT INTO dbo.[Queue] (SchemaName, ObjectName, [Parameters])
          SELECT @SchemaName, @ObjectName, @Parameters

          SET @QueueID = SCOPE_IDENTITY()
        END

        COMMIT TRANSACTION
      END

      BEGIN TRANSACTION

      UPDATE [Queue]
      SET QueueStartTime = SYSDATETIME(),
          SessionID = @@SPID,
          RequestID = (SELECT request_id FROM sys.dm_exec_requests WHERE session_id = @@SPID),
          RequestStartTime = (SELECT start_time FROM sys.dm_exec_requests WHERE session_id = @@SPID)
      FROM dbo.[Queue] [Queue]
      WHERE QueueID = @QueueID
      AND NOT EXISTS (SELECT *
                      FROM sys.dm_exec_requests
                      WHERE session_id = [Queue].SessionID
                      AND request_id = [Queue].RequestID
                      AND start_time = [Queue].RequestStartTime)
      AND NOT EXISTS (SELECT *
                      FROM dbo.QueueDatabase QueueDatabase
                      INNER JOIN sys.dm_exec_requests ON QueueDatabase.SessionID = session_id AND QueueDatabase.RequestID = request_id AND QueueDatabase.RequestStartTime = start_time
                      WHERE QueueDatabase.QueueID = @QueueID)

      IF @@ROWCOUNT = 1
      BEGIN
        INSERT INTO dbo.QueueDatabase (QueueID, DatabaseName)
        SELECT @QueueID AS QueueID,
               DatabaseName
        FROM @tmpDatabases tmpDatabases
        WHERE Selected = 1
        AND NOT EXISTS (SELECT * FROM dbo.QueueDatabase WHERE DatabaseName = tmpDatabases.DatabaseName AND QueueID = @QueueID)

        DELETE QueueDatabase
        FROM dbo.QueueDatabase QueueDatabase
        WHERE QueueID = @QueueID
        AND NOT EXISTS (SELECT * FROM @tmpDatabases tmpDatabases WHERE DatabaseName = QueueDatabase.DatabaseName AND Selected = 1)

        UPDATE QueueDatabase
        SET DatabaseOrder = tmpDatabases.[Order]
        FROM dbo.QueueDatabase QueueDatabase
        INNER JOIN @tmpDatabases tmpDatabases ON QueueDatabase.DatabaseName = tmpDatabases.DatabaseName
        WHERE QueueID = @QueueID
      END

      COMMIT TRANSACTION

      SELECT @QueueStartTime = QueueStartTime
      FROM dbo.[Queue]
      WHERE QueueID = @QueueID

    END TRY

    BEGIN CATCH
      IF XACT_STATE() <> 0
      BEGIN
        ROLLBACK TRANSACTION
      END
      SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'')
      RAISERROR('%s',16,1,@ErrorMessage) WITH NOWAIT
      RAISERROR(@EmptyLine,10,1) WITH NOWAIT
      SET @ReturnCode = ERROR_NUMBER()
      GOTO Logging
    END CATCH

  END

  ----------------------------------------------------------------------------------------------------
  --// Execute backup commands                                                                    //--
  ----------------------------------------------------------------------------------------------------

  WHILE (1 = 1)
  BEGIN

    IF @DatabasesInParallel = 'Y'
    BEGIN
      UPDATE QueueDatabase
      SET DatabaseStartTime = NULL,
          SessionID = NULL,
          RequestID = NULL,
          RequestStartTime = NULL
      FROM dbo.QueueDatabase QueueDatabase
      WHERE QueueID = @QueueID
      AND DatabaseStartTime IS NOT NULL
      AND DatabaseEndTime IS NULL
      AND NOT EXISTS (SELECT * FROM sys.dm_exec_requests WHERE session_id = QueueDatabase.SessionID AND request_id = QueueDatabase.RequestID AND start_time = QueueDatabase.RequestStartTime)

      UPDATE QueueDatabase
      SET DatabaseStartTime = SYSDATETIME(),
          DatabaseEndTime = NULL,
          SessionID = @@SPID,
          RequestID = (SELECT request_id FROM sys.dm_exec_requests WHERE session_id = @@SPID),
          RequestStartTime = (SELECT start_time FROM sys.dm_exec_requests WHERE session_id = @@SPID),
          @CurrentDatabaseName = DatabaseName,
          @CurrentDatabaseNameFS = (SELECT DatabaseNameFS FROM @tmpDatabases WHERE DatabaseName = QueueDatabase.DatabaseName)
      FROM (SELECT TOP 1 DatabaseStartTime,
                         DatabaseEndTime,
                         SessionID,
                         RequestID,
                         RequestStartTime,
                         DatabaseName
            FROM dbo.QueueDatabase
            WHERE QueueID = @QueueID
            AND (DatabaseStartTime < @QueueStartTime OR DatabaseStartTime IS NULL)
            AND NOT (DatabaseStartTime IS NOT NULL AND DatabaseEndTime IS NULL)
            ORDER BY DatabaseOrder ASC
            ) QueueDatabase
    END
    ELSE
    BEGIN
      SELECT TOP 1 @CurrentDBID = ID,
                   @CurrentDatabaseName = DatabaseName,
                   @CurrentDatabaseNameFS = DatabaseNameFS
      FROM @tmpDatabases
      WHERE Selected = 1
      AND Completed = 0
      ORDER BY [Order] ASC
    END

    IF @@ROWCOUNT = 0
    BEGIN
      BREAK
    END

    SET @CurrentDatabase_sp_executesql = QUOTENAME(@CurrentDatabaseName) + '.sys.sp_executesql'

    BEGIN
      SET @DatabaseMessage = 'Date and time: ' + CONVERT(nvarchar,SYSDATETIME(),120)
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Database: ' + QUOTENAME(@CurrentDatabaseName)
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    SELECT @CurrentUserAccess = user_access_desc,
           @CurrentIsReadOnly = is_read_only,
           @CurrentDatabaseState = state_desc,
           @CurrentInStandby = is_in_standby,
           @CurrentRecoveryModel = recovery_model_desc,
           @CurrentIsEncrypted = is_encrypted,
           @CurrentDatabaseSize = (SELECT SUM(CAST(size AS bigint)) FROM sys.master_files WHERE [type] = 0 AND database_id = sys.databases.database_id)
    FROM sys.databases
    WHERE [name] = @CurrentDatabaseName

    BEGIN
      SET @DatabaseMessage = 'State: ' + @CurrentDatabaseState
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Standby: ' + CASE WHEN @CurrentInStandby = 1 THEN 'Yes' ELSE 'No' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage =  'Updateability: ' + CASE WHEN @CurrentIsReadOnly = 1 THEN 'READ_ONLY' WHEN  @CurrentIsReadOnly = 0 THEN 'READ_WRITE' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage =  'User access: ' + @CurrentUserAccess
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Recovery model: ' + @CurrentRecoveryModel
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Encrypted: ' + CASE WHEN @CurrentIsEncrypted = 1 THEN 'Yes' WHEN @CurrentIsEncrypted = 0 THEN 'No' ELSE 'N/A' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    SELECT @CurrentMaxTransferSize = CASE
    WHEN @MaxTransferSize IS NOT NULL THEN @MaxTransferSize
    WHEN @MaxTransferSize IS NULL AND @Compress = 'Y' AND @CurrentIsEncrypted = 1 AND @BackupSoftware IS NULL AND (@Version >= 13 AND @Version < 15.0404316) AND @Credential IS NULL THEN 65537
    END

    IF @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
    BEGIN
      SELECT @CurrentReplicaID = databases.replica_id
      FROM sys.databases databases
      INNER JOIN sys.availability_replicas availability_replicas ON databases.replica_id = availability_replicas.replica_id
      WHERE databases.[name] = @CurrentDatabaseName

      SELECT @CurrentAvailabilityGroupID = group_id
      FROM sys.availability_replicas
      WHERE replica_id = @CurrentReplicaID

      SELECT @CurrentAvailabilityGroupRole = role_desc
      FROM sys.dm_hadr_availability_replica_states
      WHERE replica_id = @CurrentReplicaID

      SELECT @CurrentAvailabilityGroup = [name],
             @CurrentAvailabilityGroupBackupPreference = UPPER(automated_backup_preference_desc)
      FROM sys.availability_groups
      WHERE group_id = @CurrentAvailabilityGroupID
    END

    IF @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1 AND @CurrentAvailabilityGroup IS NOT NULL
    BEGIN
      SELECT @CurrentIsPreferredBackupReplica = sys.fn_hadr_backup_is_preferred_replica(@CurrentDatabaseName)
    END

    SELECT @CurrentDifferentialBaseLSN = differential_base_lsn
    FROM sys.master_files
    WHERE database_id = DB_ID(@CurrentDatabaseName)
    AND [type] = 0
    AND [file_id] = 1

    IF @CurrentDatabaseState = 'ONLINE' AND NOT (@CurrentInStandby = 1)
    BEGIN
      SELECT @CurrentLogLSN = last_log_backup_lsn
      FROM sys.database_recovery_status
      WHERE database_id = DB_ID(@CurrentDatabaseName)
    END

    IF @CurrentDatabaseState = 'ONLINE' AND NOT (@CurrentInStandby = 1)
    AND EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_file_space_usage') AND name = 'modified_extent_page_count')
    AND (@CurrentAvailabilityGroupRole = 'PRIMARY' OR @CurrentAvailabilityGroupRole IS NULL)
    AND (@BackupType IN('DIFF','FULL') OR (@ChangeBackupType = 'Y' AND @CurrentBackupType = 'LOG' AND @CurrentRecoveryModel IN('FULL','BULK_LOGGED') AND @CurrentLogLSN IS NULL AND @CurrentDatabaseName <> 'master'))
    AND (@ModificationLevel IS NOT NULL OR @MinBackupSizeForMultipleFiles IS NOT NULL OR @MaxFileSize IS NOT NULL OR @MinDatabaseSizeForDifferentialBackup IS NOT NULL)
    BEGIN
      SET @CurrentCommand = 'SELECT @ParamAllocatedExtentPageCount = SUM(allocated_extent_page_count), @ParamModifiedExtentPageCount = SUM(modified_extent_page_count) FROM sys.dm_db_file_space_usage'

      EXECUTE @CurrentDatabase_sp_executesql @stmt = @CurrentCommand, @params = N'@ParamAllocatedExtentPageCount bigint OUTPUT, @ParamModifiedExtentPageCount bigint OUTPUT', @ParamAllocatedExtentPageCount = @CurrentAllocatedExtentPageCount OUTPUT, @ParamModifiedExtentPageCount = @CurrentModifiedExtentPageCount OUTPUT
    END

    SET @BackupInProcess = CASE WHEN EXISTS(SELECT * FROM sys.dm_exec_requests WHERE database_id = DB_ID(@CurrentDatabaseName) AND command = 'BACKUP DATABASE') THEN 1 ELSE 0 END

    SET @CurrentBackupType = @BackupType

    IF @ChangeBackupType = 'Y'
    BEGIN
      IF @CurrentBackupType = 'LOG' AND @CurrentRecoveryModel IN('FULL','BULK_LOGGED') AND @CurrentLogLSN IS NULL AND @CurrentDatabaseName <> 'master' AND @BackupInProcess = 0
      BEGIN
        SET @CurrentBackupType = 'DIFF'
      END
      IF @CurrentBackupType = 'DIFF' AND (@CurrentDatabaseName = 'master' OR @CurrentDifferentialBaseLSN IS NULL OR (@CurrentModifiedExtentPageCount * 1. / @CurrentAllocatedExtentPageCount * 100 >= @ModificationLevel) OR (COALESCE(CAST(@CurrentAllocatedExtentPageCount AS bigint) * 8192, CAST(@CurrentDatabaseSize AS bigint) * 8192) < CAST(@MinDatabaseSizeForDifferentialBackup AS bigint) * 1024 * 1024))
      BEGIN
        SET @CurrentBackupType = 'FULL'
      END
    END

    IF @CurrentDatabaseState = 'ONLINE' AND NOT (@CurrentInStandby = 1)
    AND EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_log_stats') AND name = 'log_since_last_log_backup_mb')
    BEGIN
      SELECT @CurrentLastLogBackup = log_backup_time,
             @CurrentLogSizeSinceLastLogBackup = log_since_last_log_backup_mb
      FROM sys.dm_db_log_stats (DB_ID(@CurrentDatabaseName))
    END

    IF @CurrentBackupType = 'DIFF'
    BEGIN
      SELECT @CurrentDifferentialBaseIsSnapshot = is_snapshot
      FROM msdb.dbo.backupset
      WHERE database_name = @CurrentDatabaseName
      AND [type] = 'D'
      AND checkpoint_lsn = @CurrentDifferentialBaseLSN
    END

    IF @ChangeBackupType = 'Y'
    BEGIN
      IF @CurrentBackupType = 'DIFF' AND @CurrentDifferentialBaseIsSnapshot = 1
      BEGIN
        SET @CurrentBackupType = 'FULL'
      END
    END;

    WITH CurrentDatabase AS
    (
    SELECT BackupSize = CASE WHEN @CurrentBackupType = 'FULL' THEN COALESCE(CAST(@CurrentAllocatedExtentPageCount AS bigint) * 8192, CAST(@CurrentDatabaseSize AS bigint) * 8192)
                             WHEN @CurrentBackupType = 'DIFF' THEN CAST(@CurrentModifiedExtentPageCount AS bigint) * 8192
                             WHEN @CurrentBackupType = 'LOG' THEN CAST(@CurrentLogSizeSinceLastLogBackup * 1024 * 1024 AS bigint)
                             END,
           MaxNumberOfFiles = CASE WHEN @BackupSoftware IN('SQLBACKUP','DATA_DOMAIN_BOOST') THEN 32 ELSE 64 END,
           CASE WHEN (SELECT COUNT(*) FROM @Directories WHERE Mirror = 0) > 0 THEN (SELECT COUNT(*) FROM @Directories WHERE Mirror = 0) ELSE (SELECT COUNT(*) FROM @URLs WHERE Mirror = 0) END AS NumberOfDirectories,
           CAST(@MinBackupSizeForMultipleFiles AS bigint) * 1024 * 1024 AS MinBackupSizeForMultipleFiles,
           CAST(@MaxFileSize AS bigint) * 1024 * 1024 AS MaxFileSize
    )
    SELECT @CurrentNumberOfFiles = CASE WHEN @NumberOfFiles IS NULL AND @BackupSoftware = 'DATA_DOMAIN_BOOST' THEN 1
                                        WHEN @NumberOfFiles IS NULL AND @MaxFileSize IS NULL THEN NumberOfDirectories
                                        WHEN @NumberOfFiles = 1 THEN @NumberOfFiles
                                        WHEN @NumberOfFiles > 1 AND (BackupSize >= MinBackupSizeForMultipleFiles OR MinBackupSizeForMultipleFiles IS NULL OR BackupSize IS NULL) THEN @NumberOfFiles
                                        WHEN @NumberOfFiles > 1 AND (BackupSize < MinBackupSizeForMultipleFiles) THEN NumberOfDirectories
                                        WHEN @NumberOfFiles IS NULL AND @MaxFileSize IS NOT NULL AND (BackupSize IS NULL OR BackupSize = 0) THEN NumberOfDirectories
                                        WHEN @NumberOfFiles IS NULL AND @MaxFileSize IS NOT NULL THEN (SELECT MIN(NumberOfFilesInEachDirectory)
                                                                                                       FROM (SELECT ((BackupSize / NumberOfDirectories) / MaxFileSize + CASE WHEN (BackupSize / NumberOfDirectories) % MaxFileSize = 0 THEN 0 ELSE 1 END) AS NumberOfFilesInEachDirectory
                                                                                                             UNION
                                                                                                             SELECT MaxNumberOfFiles / NumberOfDirectories) Files) * NumberOfDirectories
                                        END

    FROM CurrentDatabase

    SELECT @CurrentDatabaseMirroringRole = UPPER(mirroring_role_desc)
    FROM sys.database_mirroring
    WHERE database_id = DB_ID(@CurrentDatabaseName)

    IF EXISTS (SELECT * FROM msdb.dbo.log_shipping_primary_databases WHERE primary_database = @CurrentDatabaseName)
    BEGIN
      SET @CurrentLogShippingRole = 'PRIMARY'
    END
    ELSE
    IF EXISTS (SELECT * FROM msdb.dbo.log_shipping_secondary_databases WHERE secondary_database = @CurrentDatabaseName)
    BEGIN
      SET @CurrentLogShippingRole = 'SECONDARY'
    END

    IF @CurrentAvailabilityGroup IS NOT NULL
    BEGIN
      SET @DatabaseMessage = 'Availability group: ' + ISNULL(@CurrentAvailabilityGroup,'N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Availability group role: ' + ISNULL(@CurrentAvailabilityGroupRole,'N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Availability group backup preference: ' + ISNULL(@CurrentAvailabilityGroupBackupPreference,'N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Is preferred backup replica: ' + CASE WHEN @CurrentIsPreferredBackupReplica = 1 THEN 'Yes' WHEN @CurrentIsPreferredBackupReplica = 0 THEN 'No' ELSE 'N/A' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    IF @CurrentDatabaseMirroringRole IS NOT NULL
    BEGIN
      SET @DatabaseMessage = 'Database mirroring role: ' + @CurrentDatabaseMirroringRole
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    IF @CurrentLogShippingRole IS NOT NULL
    BEGIN
      SET @DatabaseMessage = 'Log shipping role: ' + @CurrentLogShippingRole
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    SET @DatabaseMessage = 'Differential base LSN: ' + ISNULL(CAST(@CurrentDifferentialBaseLSN AS nvarchar),'N/A')
    RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

    IF @CurrentBackupType = 'DIFF' OR @CurrentDifferentialBaseIsSnapshot IS NOT NULL
    BEGIN
      SET @DatabaseMessage = 'Differential base is snapshot: ' + CASE WHEN @CurrentDifferentialBaseIsSnapshot = 1 THEN 'Yes' WHEN @CurrentDifferentialBaseIsSnapshot = 0 THEN 'No' ELSE 'N/A' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    SET @DatabaseMessage = 'Last log backup LSN: ' + ISNULL(CAST(@CurrentLogLSN AS nvarchar),'N/A')
    RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

    IF @CurrentBackupType = 'LOG' AND @BackupInProcess = 1
    BEGIN
      SET @DatabaseMessage = 'Full or differential backup in process: ' + CASE WHEN @BackupInProcess = 1 THEN 'Yes' WHEN @BackupInProcess = 0 THEN 'No' ELSE 'N/A' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    IF @CurrentBackupType IN('DIFF','FULL') AND EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_file_space_usage') AND name = 'modified_extent_page_count')
    BEGIN
      SET @DatabaseMessage = 'Allocated extent page count: ' + ISNULL(CAST(@CurrentAllocatedExtentPageCount AS nvarchar) + ' (' + CAST(@CurrentAllocatedExtentPageCount * 1. * 8 / 1024 AS nvarchar) + ' MB)','N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Modified extent page count: ' + ISNULL(CAST(@CurrentModifiedExtentPageCount AS nvarchar) + ' (' + CAST(@CurrentModifiedExtentPageCount * 1. * 8 / 1024 AS nvarchar) + ' MB)','N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    IF @CurrentBackupType = 'LOG' AND EXISTS(SELECT * FROM sys.all_columns WHERE object_id = OBJECT_ID('sys.dm_db_log_stats') AND name = 'log_since_last_log_backup_mb')
    BEGIN
      SET @DatabaseMessage = 'Last log backup: ' + ISNULL(CONVERT(nvarchar(19),NULLIF(@CurrentLastLogBackup,'1900-01-01'),120),'N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Log size since last log backup (MB): ' + ISNULL(CAST(@CurrentLogSizeSinceLastLogBackup AS nvarchar),'N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    RAISERROR(@EmptyLine,10,1) WITH NOWAIT

    IF @CurrentDatabaseState = 'ONLINE'
    AND NOT (@CurrentUserAccess = 'SINGLE_USER')
    AND NOT (@CurrentInStandby = 1)
    AND NOT (@CurrentBackupType = 'LOG' AND @CurrentRecoveryModel = 'SIMPLE')
    AND NOT (@CurrentBackupType = 'LOG' AND @CurrentRecoveryModel IN('FULL','BULK_LOGGED') AND @CurrentLogLSN IS NULL)
    AND NOT (@CurrentBackupType = 'DIFF' AND @CurrentDifferentialBaseLSN IS NULL)
    AND NOT (@CurrentBackupType IN('DIFF','LOG') AND @CurrentDatabaseName = 'master')
    AND NOT (@CurrentAvailabilityGroup IS NOT NULL AND @CurrentBackupType = 'FULL' AND @CopyOnly = 'N' AND (@CurrentAvailabilityGroupRole <> 'PRIMARY' OR @CurrentAvailabilityGroupRole IS NULL))
    AND NOT (@CurrentAvailabilityGroup IS NOT NULL AND @CurrentBackupType = 'FULL' AND @CopyOnly = 'Y' AND (@CurrentIsPreferredBackupReplica <> 1 OR @CurrentIsPreferredBackupReplica IS NULL) AND @OverrideBackupPreference = 'N')
    AND NOT (@CurrentAvailabilityGroup IS NOT NULL AND @CurrentBackupType = 'DIFF' AND (@CurrentAvailabilityGroupRole <> 'PRIMARY' OR @CurrentAvailabilityGroupRole IS NULL))
    AND NOT (@CurrentAvailabilityGroup IS NOT NULL AND @CurrentBackupType = 'LOG' AND @CopyOnly = 'N' AND (@CurrentIsPreferredBackupReplica <> 1 OR @CurrentIsPreferredBackupReplica IS NULL) AND @OverrideBackupPreference = 'N')
    AND NOT (@CurrentAvailabilityGroup IS NOT NULL AND @CurrentBackupType = 'LOG' AND @CopyOnly = 'Y' AND (@CurrentAvailabilityGroupRole <> 'PRIMARY' OR @CurrentAvailabilityGroupRole IS NULL))
    AND NOT ((@CurrentLogShippingRole = 'PRIMARY' AND @CurrentLogShippingRole IS NOT NULL) AND @CurrentBackupType = 'LOG' AND @ExcludeLogShippedFromLogBackup = 'Y')
    AND NOT (@CurrentIsReadOnly = 1 AND @Updateability = 'READ_WRITE')
    AND NOT (@CurrentIsReadOnly = 0 AND @Updateability = 'READ_ONLY')
    AND NOT (@CurrentBackupType = 'LOG' AND @LogSizeSinceLastLogBackup IS NOT NULL AND @TimeSinceLastLogBackup IS NOT NULL AND NOT(@CurrentLogSizeSinceLastLogBackup >= @LogSizeSinceLastLogBackup OR @CurrentLogSizeSinceLastLogBackup IS NULL OR DATEDIFF(SECOND,@CurrentLastLogBackup,SYSDATETIME()) >= @TimeSinceLastLogBackup OR @CurrentLastLogBackup IS NULL))
    AND NOT (@CurrentBackupType = 'LOG' AND @Updateability = 'READ_ONLY' AND @BackupSoftware = 'DATA_DOMAIN_BOOST')
    AND NOT (@CurrentBackupType = 'DIFF' AND @MinDatabaseSizeForDifferentialBackup IS NOT NULL AND (COALESCE(CAST(@CurrentAllocatedExtentPageCount AS bigint) * 8192, CAST(@CurrentDatabaseSize AS bigint) * 8192) < CAST(@MinDatabaseSizeForDifferentialBackup AS bigint) * 1024 * 1024))
    BEGIN

      IF @CurrentBackupType = 'LOG' AND (@CleanupTime IS NOT NULL OR @MirrorCleanupTime IS NOT NULL)
      BEGIN
        SELECT @CurrentLatestBackup = MAX(backup_start_date)
        FROM msdb.dbo.backupset
        WHERE ([type] IN('D','I')
        OR ([type] = 'L' AND last_lsn < @CurrentDifferentialBaseLSN))
        AND is_damaged = 0
        AND [database_name] = @CurrentDatabaseName
      END

      SET @CurrentDate = SYSDATETIME()
      SET @CurrentDateUTC = SYSUTCDATETIME()

      INSERT INTO @CurrentCleanupDates (CleanupDate)
      SELECT @CurrentDate

      IF @CurrentBackupType = 'LOG'
      BEGIN
        INSERT INTO @CurrentCleanupDates (CleanupDate)
        SELECT @CurrentLatestBackup
      END

      SELECT @CurrentDirectoryStructure = CASE
      WHEN @CurrentAvailabilityGroup IS NOT NULL THEN @AvailabilityGroupDirectoryStructure
      ELSE @DirectoryStructure
      END

      IF @CurrentDirectoryStructure IS NOT NULL
      BEGIN
      -- Directory structure - remove tokens that are not needed
        IF @ReadWriteFileGroups = 'N' SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Partial}','')
        IF @CopyOnly = 'N' SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{CopyOnly}','')
        IF @Cluster IS NULL SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{ClusterName}','')
        IF @CurrentAvailabilityGroup IS NULL SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{AvailabilityGroupName}','')
        IF SERVERPROPERTY('InstanceName') IS NULL SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{InstanceName}','')
        IF @@SERVICENAME IS NULL SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{ServiceName}','')
        IF @Description IS NULL SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Description}','')
        IF @BackupSetName IS NULL SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{BackupSetName}','')

        IF @Directory IS NULL AND @MirrorDirectory IS NULL AND @URL IS NULL AND @DefaultDirectory LIKE '%' + '.' + @@SERVICENAME + @DirectorySeparator + 'MSSQL' + @DirectorySeparator + 'Backup'
        BEGIN
          SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{ServerName}','')
          SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{InstanceName}','')
          SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{ClusterName}','')
          SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{AvailabilityGroupName}','')
        END

        WHILE (@Updated = 1 OR @Updated IS NULL)
        BEGIN
          SET @Updated = 0

          IF CHARINDEX('\',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'\','{DirectorySeparator}')
            SET @Updated = 1
          END

          IF CHARINDEX('/',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'/','{DirectorySeparator}')
            SET @Updated = 1
          END

          IF CHARINDEX('__',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'__','_')
            SET @Updated = 1
          END

          IF CHARINDEX('--',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'--','-')
            SET @Updated = 1
          END

          IF CHARINDEX('{DirectorySeparator}{DirectorySeparator}',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{DirectorySeparator}{DirectorySeparator}','{DirectorySeparator}')
            SET @Updated = 1
          END

          IF CHARINDEX('{DirectorySeparator}$',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{DirectorySeparator}$','{DirectorySeparator}')
            SET @Updated = 1
          END
          IF CHARINDEX('${DirectorySeparator}',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'${DirectorySeparator}','{DirectorySeparator}')
            SET @Updated = 1
          END

          IF CHARINDEX('{DirectorySeparator}_',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{DirectorySeparator}_','{DirectorySeparator}')
            SET @Updated = 1
          END
          IF CHARINDEX('_{DirectorySeparator}',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'_{DirectorySeparator}','{DirectorySeparator}')
            SET @Updated = 1
          END

          IF CHARINDEX('{DirectorySeparator}-',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{DirectorySeparator}-','{DirectorySeparator}')
            SET @Updated = 1
          END
          IF CHARINDEX('-{DirectorySeparator}',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'-{DirectorySeparator}','{DirectorySeparator}')
            SET @Updated = 1
          END

          IF CHARINDEX('_$',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'_$','_')
            SET @Updated = 1
          END
          IF CHARINDEX('$_',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'$_','_')
            SET @Updated = 1
          END

          IF CHARINDEX('-$',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'-$','-')
            SET @Updated = 1
          END
          IF CHARINDEX('$-',@CurrentDirectoryStructure) > 0
          BEGIN
            SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'$-','-')
            SET @Updated = 1
          END

          IF LEFT(@CurrentDirectoryStructure,1) = '_'
          BEGIN
            SET @CurrentDirectoryStructure = RIGHT(@CurrentDirectoryStructure,LEN(@CurrentDirectoryStructure) - 1)
            SET @Updated = 1
          END
          IF RIGHT(@CurrentDirectoryStructure,1) = '_'
          BEGIN
            SET @CurrentDirectoryStructure = LEFT(@CurrentDirectoryStructure,LEN(@CurrentDirectoryStructure) - 1)
            SET @Updated = 1
          END

          IF LEFT(@CurrentDirectoryStructure,1) = '-'
          BEGIN
            SET @CurrentDirectoryStructure = RIGHT(@CurrentDirectoryStructure,LEN(@CurrentDirectoryStructure) - 1)
            SET @Updated = 1
          END
          IF RIGHT(@CurrentDirectoryStructure,1) = '-'
          BEGIN
            SET @CurrentDirectoryStructure = LEFT(@CurrentDirectoryStructure,LEN(@CurrentDirectoryStructure) - 1)
            SET @Updated = 1
          END

          IF LEFT(@CurrentDirectoryStructure,1) = '$'
          BEGIN
            SET @CurrentDirectoryStructure = RIGHT(@CurrentDirectoryStructure,LEN(@CurrentDirectoryStructure) - 1)
            SET @Updated = 1
          END
          IF RIGHT(@CurrentDirectoryStructure,1) = '$'
          BEGIN
            SET @CurrentDirectoryStructure = LEFT(@CurrentDirectoryStructure,LEN(@CurrentDirectoryStructure) - 1)
            SET @Updated = 1
          END

          IF LEFT(@CurrentDirectoryStructure,20) = '{DirectorySeparator}'
          BEGIN
            SET @CurrentDirectoryStructure = RIGHT(@CurrentDirectoryStructure,LEN(@CurrentDirectoryStructure) - 20)
            SET @Updated = 1
          END
          IF RIGHT(@CurrentDirectoryStructure,20) = '{DirectorySeparator}'
          BEGIN
            SET @CurrentDirectoryStructure = LEFT(@CurrentDirectoryStructure,LEN(@CurrentDirectoryStructure) - 20)
            SET @Updated = 1
          END
        END

        SET @Updated = NULL

        -- Directory structure - replace tokens with real values
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{DirectorySeparator}',@DirectorySeparator)
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{ServerName}',CASE WHEN SERVERPROPERTY('EngineEdition') = 8 THEN LEFT(CAST(SERVERPROPERTY('ServerName') AS nvarchar(max)),CHARINDEX('.',CAST(SERVERPROPERTY('ServerName') AS nvarchar(max))) - 1) ELSE CAST(SERVERPROPERTY('MachineName') AS nvarchar(max)) END)
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{InstanceName}',ISNULL(CAST(SERVERPROPERTY('InstanceName') AS nvarchar(max)),''))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{ServiceName}',ISNULL(@@SERVICENAME,''))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{ClusterName}',ISNULL(@Cluster,''))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{AvailabilityGroupName}',ISNULL(@CurrentAvailabilityGroup,''))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{DatabaseName}',@CurrentDatabaseNameFS)
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{BackupType}',@CurrentBackupType)
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Partial}','PARTIAL')
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{CopyOnly}','COPY_ONLY')
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Description}',LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(ISNULL(@Description,''),'\',''),'/',''),':',''),'*',''),'?',''),'"',''),'<',''),'>',''),'|',''))))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{BackupSetName}',LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(ISNULL(@BackupSetName,''),'\',''),'/',''),':',''),'*',''),'?',''),'"',''),'<',''),'>',''),'|',''))))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Year}',CAST(DATEPART(YEAR,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Month}',RIGHT('0' + CAST(DATEPART(MONTH,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Day}',RIGHT('0' + CAST(DATEPART(DAY,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Week}',RIGHT('0' + CAST(DATEPART(WEEK,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Weekday}',DATENAME(WEEKDAY,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Hour}',RIGHT('0' + CAST(DATEPART(HOUR,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Minute}',RIGHT('0' + CAST(DATEPART(MINUTE,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Second}',RIGHT('0' + CAST(DATEPART(SECOND,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Millisecond}',RIGHT('00' + CAST(DATEPART(MILLISECOND,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),3))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{Microsecond}',RIGHT('00000' + CAST(DATEPART(MICROSECOND,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),6))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{MajorVersion}',ISNULL(CAST(SERVERPROPERTY('ProductMajorVersion') AS nvarchar),PARSENAME(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar),4)))
        SET @CurrentDirectoryStructure = REPLACE(@CurrentDirectoryStructure,'{MinorVersion}',ISNULL(CAST(SERVERPROPERTY('ProductMinorVersion') AS nvarchar),PARSENAME(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar),3)))
      END

      IF @DirectoryStructureCase IS NOT NULL
      BEGIN
        SET @CurrentDirectoryStructure = CASE WHEN @DirectoryStructureCase = 'LOWER' THEN LOWER(@CurrentDirectoryStructure)
                                              WHEN @DirectoryStructureCase = 'UPPER' THEN UPPER(@CurrentDirectoryStructure) END
      END

      INSERT INTO @CurrentDirectories (ID, DirectoryPath, Mirror, DirectoryNumber, CreateCompleted, CleanupCompleted)
      SELECT ROW_NUMBER() OVER (ORDER BY ID),
             DirectoryPath + CASE WHEN DirectoryPath = 'NUL' THEN '' WHEN @CurrentDirectoryStructure IS NOT NULL THEN @DirectorySeparator + @CurrentDirectoryStructure ELSE '' END,
             Mirror,
             ROW_NUMBER() OVER (PARTITION BY Mirror ORDER BY ID ASC),
             0,
             0
      FROM @Directories
      ORDER BY ID ASC

      INSERT INTO @CurrentURLs (ID, DirectoryPath, Mirror, DirectoryNumber)
      SELECT ROW_NUMBER() OVER (ORDER BY ID),
             DirectoryPath + CASE WHEN @CurrentDirectoryStructure IS NOT NULL THEN @DirectorySeparator + @CurrentDirectoryStructure ELSE '' END,
             Mirror,
             ROW_NUMBER() OVER (PARTITION BY Mirror ORDER BY ID ASC)
      FROM @URLs
      ORDER BY ID ASC

      SELECT @CurrentDatabaseFileName = CASE
      WHEN @CurrentAvailabilityGroup IS NOT NULL THEN @AvailabilityGroupFileName
      ELSE @FileName
      END

      -- File name - remove tokens that are not needed
      IF @ReadWriteFileGroups = 'N' SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Partial}','')
      IF @CopyOnly = 'N' SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{CopyOnly}','')
      IF @Cluster IS NULL SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{ClusterName}','')
      IF @CurrentAvailabilityGroup IS NULL SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{AvailabilityGroupName}','')
      IF SERVERPROPERTY('InstanceName') IS NULL SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{InstanceName}','')
      IF @@SERVICENAME IS NULL SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{ServiceName}','')
      IF @Description IS NULL SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Description}','')
      IF @BackupSetName IS NULL SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{BackupSetName}','')
      IF @CurrentNumberOfFiles = 1 SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{FileNumber}','')
      IF @CurrentNumberOfFiles = 1 SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{NumberOfFiles}','')

      WHILE (@Updated = 1 OR @Updated IS NULL)
      BEGIN
        SET @Updated = 0

        IF CHARINDEX('__',@CurrentDatabaseFileName) > 0
        BEGIN
          SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'__','_')
          SET @Updated = 1
        END

        IF CHARINDEX('--',@CurrentDatabaseFileName) > 0
        BEGIN
          SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'--','-')
          SET @Updated = 1
        END

        IF CHARINDEX('_$',@CurrentDatabaseFileName) > 0
        BEGIN
          SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'_$','_')
          SET @Updated = 1
        END
        IF CHARINDEX('$_',@CurrentDatabaseFileName) > 0
        BEGIN
          SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'$_','_')
          SET @Updated = 1
        END

        IF CHARINDEX('-$',@CurrentDatabaseFileName) > 0
        BEGIN
          SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'-$','-')
          SET @Updated = 1
        END
        IF CHARINDEX('$-',@CurrentDatabaseFileName) > 0
        BEGIN
          SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'$-','-')
          SET @Updated = 1
        END

        IF CHARINDEX('_.',@CurrentDatabaseFileName) > 0
        BEGIN
          SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'_.','.')
          SET @Updated = 1
        END

        IF CHARINDEX('-.',@CurrentDatabaseFileName) > 0
        BEGIN
          SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'-.','.')
          SET @Updated = 1
        END

        IF CHARINDEX('of.',@CurrentDatabaseFileName) > 0
        BEGIN
          SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'of.','.')
          SET @Updated = 1
        END

        IF LEFT(@CurrentDatabaseFileName,1) = '_'
        BEGIN
          SET @CurrentDatabaseFileName = RIGHT(@CurrentDatabaseFileName,LEN(@CurrentDatabaseFileName) - 1)
          SET @Updated = 1
        END
        IF RIGHT(@CurrentDatabaseFileName,1) = '_'
        BEGIN
          SET @CurrentDatabaseFileName = LEFT(@CurrentDatabaseFileName,LEN(@CurrentDatabaseFileName) - 1)
          SET @Updated = 1
        END

        IF LEFT(@CurrentDatabaseFileName,1) = '-'
        BEGIN
          SET @CurrentDatabaseFileName = RIGHT(@CurrentDatabaseFileName,LEN(@CurrentDatabaseFileName) - 1)
          SET @Updated = 1
        END
        IF RIGHT(@CurrentDatabaseFileName,1) = '-'
        BEGIN
          SET @CurrentDatabaseFileName = LEFT(@CurrentDatabaseFileName,LEN(@CurrentDatabaseFileName) - 1)
          SET @Updated = 1
        END

        IF LEFT(@CurrentDatabaseFileName,1) = '$'
        BEGIN
          SET @CurrentDatabaseFileName = RIGHT(@CurrentDatabaseFileName,LEN(@CurrentDatabaseFileName) - 1)
          SET @Updated = 1
        END
        IF RIGHT(@CurrentDatabaseFileName,1) = '$'
        BEGIN
          SET @CurrentDatabaseFileName = LEFT(@CurrentDatabaseFileName,LEN(@CurrentDatabaseFileName) - 1)
          SET @Updated = 1
        END
      END

      SET @Updated = NULL

      SELECT @CurrentFileExtension = CASE
      WHEN @CurrentBackupType = 'FULL' THEN @FileExtensionFull
      WHEN @CurrentBackupType = 'DIFF' THEN @FileExtensionDiff
      WHEN @CurrentBackupType = 'LOG' THEN @FileExtensionLog
      END

      -- File name - replace tokens with real values
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{ServerName}',CASE WHEN SERVERPROPERTY('EngineEdition') = 8 THEN LEFT(CAST(SERVERPROPERTY('ServerName') AS nvarchar(max)),CHARINDEX('.',CAST(SERVERPROPERTY('ServerName') AS nvarchar(max))) - 1) ELSE CAST(SERVERPROPERTY('MachineName') AS nvarchar(max)) END)
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{InstanceName}',ISNULL(CAST(SERVERPROPERTY('InstanceName') AS nvarchar(max)),''))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{ServiceName}',ISNULL(@@SERVICENAME,''))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{ClusterName}',ISNULL(@Cluster,''))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{AvailabilityGroupName}',ISNULL(@CurrentAvailabilityGroup,''))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{BackupType}',@CurrentBackupType)
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Partial}','PARTIAL')
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{CopyOnly}','COPY_ONLY')
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Description}',LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(ISNULL(@Description,''),'\',''),'/',''),':',''),'*',''),'?',''),'"',''),'<',''),'>',''),'|',''))))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{BackupSetName}',LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(ISNULL(@BackupSetName,''),'\',''),'/',''),':',''),'*',''),'?',''),'"',''),'<',''),'>',''),'|',''))))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Year}',CAST(DATEPART(YEAR,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Month}',RIGHT('0' + CAST(DATEPART(MONTH,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Day}',RIGHT('0' + CAST(DATEPART(DAY,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Week}',RIGHT('0' + CAST(DATEPART(WEEK,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Weekday}',DATENAME(WEEKDAY,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Hour}',RIGHT('0' + CAST(DATEPART(HOUR,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Minute}',RIGHT('0' + CAST(DATEPART(MINUTE,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Second}',RIGHT('0' + CAST(DATEPART(SECOND,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),2))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Millisecond}',RIGHT('00' + CAST(DATEPART(MILLISECOND,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),3))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{Microsecond}',RIGHT('00000' + CAST(DATEPART(MICROSECOND,CASE WHEN @TokenTimezone = 'UTC' THEN @CurrentDateUTC ELSE @CurrentDate END) AS nvarchar),6))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{NumberOfFiles}',@CurrentNumberOfFiles)
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{FileExtension}',@CurrentFileExtension)
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{MajorVersion}',ISNULL(CAST(SERVERPROPERTY('ProductMajorVersion') AS nvarchar),PARSENAME(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar),4)))
      SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{MinorVersion}',ISNULL(CAST(SERVERPROPERTY('ProductMinorVersion') AS nvarchar),PARSENAME(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar),3)))

      SELECT @CurrentMaxFilePathLength = CASE
      WHEN EXISTS (SELECT * FROM @CurrentDirectories) THEN (SELECT MAX(LEN(DirectoryPath + @DirectorySeparator)) FROM @CurrentDirectories)
      WHEN EXISTS (SELECT * FROM @CurrentURLs) THEN (SELECT MAX(LEN(DirectoryPath + @DirectorySeparator)) FROM @CurrentURLs)
      END
      + LEN(REPLACE(REPLACE(@CurrentDatabaseFileName,'{DatabaseName}',@CurrentDatabaseNameFS), '{FileNumber}', CASE WHEN @CurrentNumberOfFiles >= 1 AND @CurrentNumberOfFiles <= 9 THEN '1' WHEN @CurrentNumberOfFiles >= 10 THEN '01' END))

      -- The maximum length of a backup device is 259 characters
      IF @CurrentMaxFilePathLength > 259
      BEGIN
        SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{DatabaseName}',LEFT(@CurrentDatabaseNameFS,CASE WHEN (LEN(@CurrentDatabaseNameFS) + 259 - @CurrentMaxFilePathLength - 3) < 20 THEN 20 ELSE (LEN(@CurrentDatabaseNameFS) + 259 - @CurrentMaxFilePathLength - 3) END) + '...')
      END
      ELSE
      BEGIN
        SET @CurrentDatabaseFileName = REPLACE(@CurrentDatabaseFileName,'{DatabaseName}',@CurrentDatabaseNameFS)
      END

      IF @FileNameCase IS NOT NULL
      BEGIN
        SET @CurrentDatabaseFileName = CASE WHEN @FileNameCase = 'LOWER' THEN LOWER(@CurrentDatabaseFileName)
                                            WHEN @FileNameCase = 'UPPER' THEN UPPER(@CurrentDatabaseFileName) END
      END

      IF EXISTS (SELECT * FROM @CurrentDirectories WHERE Mirror = 0)
      BEGIN
        SET @CurrentFileNumber = 0

        WHILE @CurrentFileNumber < @CurrentNumberOfFiles
        BEGIN
          SET @CurrentFileNumber = @CurrentFileNumber + 1

          SELECT @CurrentDirectoryPath = DirectoryPath
          FROM @CurrentDirectories
          WHERE @CurrentFileNumber >= (DirectoryNumber - 1) * (SELECT @CurrentNumberOfFiles / COUNT(*) FROM @CurrentDirectories WHERE Mirror = 0) + 1
          AND @CurrentFileNumber <= DirectoryNumber * (SELECT @CurrentNumberOfFiles / COUNT(*) FROM @CurrentDirectories WHERE Mirror = 0)
          AND Mirror = 0

          SET @CurrentFileName = REPLACE(@CurrentDatabaseFileName, '{FileNumber}', CASE WHEN @CurrentNumberOfFiles >= 1 AND @CurrentNumberOfFiles <= 9 THEN CAST(@CurrentFileNumber AS nvarchar) WHEN @CurrentNumberOfFiles >= 10 THEN RIGHT('0' + CAST(@CurrentFileNumber AS nvarchar),2) END)

          IF @CurrentDirectoryPath = 'NUL'
          BEGIN
            SET @CurrentFilePath = 'NUL'
          END
          ELSE
          BEGIN
            SET @CurrentFilePath = @CurrentDirectoryPath + @DirectorySeparator + @CurrentFileName
          END

          INSERT INTO @CurrentFiles ([Type], FilePath, Mirror)
          SELECT 'DISK', @CurrentFilePath, 0

          SET @CurrentDirectoryPath = NULL
          SET @CurrentFileName = NULL
          SET @CurrentFilePath = NULL
        END

        INSERT INTO @CurrentBackupSet (Mirror, VerifyCompleted)
        SELECT 0, 0
      END

      IF EXISTS (SELECT * FROM @CurrentDirectories WHERE Mirror = 1)
      BEGIN
        SET @CurrentFileNumber = 0

        WHILE @CurrentFileNumber < @CurrentNumberOfFiles
        BEGIN
          SET @CurrentFileNumber = @CurrentFileNumber + 1

          SELECT @CurrentDirectoryPath = DirectoryPath
          FROM @CurrentDirectories
          WHERE @CurrentFileNumber >= (DirectoryNumber - 1) * (SELECT @CurrentNumberOfFiles / COUNT(*) FROM @CurrentDirectories WHERE Mirror = 1) + 1
          AND @CurrentFileNumber <= DirectoryNumber * (SELECT @CurrentNumberOfFiles / COUNT(*) FROM @CurrentDirectories WHERE Mirror = 1)
          AND Mirror = 1

          SET @CurrentFileName = REPLACE(@CurrentDatabaseFileName, '{FileNumber}', CASE WHEN @CurrentNumberOfFiles > 1 AND @CurrentNumberOfFiles <= 9 THEN CAST(@CurrentFileNumber AS nvarchar) WHEN @CurrentNumberOfFiles >= 10 THEN RIGHT('0' + CAST(@CurrentFileNumber AS nvarchar),2) ELSE '' END)

          SET @CurrentFilePath = @CurrentDirectoryPath + @DirectorySeparator + @CurrentFileName

          INSERT INTO @CurrentFiles ([Type], FilePath, Mirror)
          SELECT 'DISK', @CurrentFilePath, 1

          SET @CurrentDirectoryPath = NULL
          SET @CurrentFileName = NULL
          SET @CurrentFilePath = NULL
        END

        INSERT INTO @CurrentBackupSet (Mirror, VerifyCompleted)
        SELECT 1, 0
      END

      IF EXISTS (SELECT * FROM @CurrentURLs WHERE Mirror = 0)
      BEGIN
        SET @CurrentFileNumber = 0

        WHILE @CurrentFileNumber < @CurrentNumberOfFiles
        BEGIN
          SET @CurrentFileNumber = @CurrentFileNumber + 1

          SELECT @CurrentDirectoryPath = DirectoryPath
          FROM @CurrentURLs
          WHERE @CurrentFileNumber >= (DirectoryNumber - 1) * (SELECT @CurrentNumberOfFiles / COUNT(*) FROM @CurrentURLs WHERE Mirror = 0) + 1
          AND @CurrentFileNumber <= DirectoryNumber * (SELECT @CurrentNumberOfFiles / COUNT(*) FROM @CurrentURLs WHERE Mirror = 0)
          AND Mirror = 0

          SET @CurrentFileName = REPLACE(@CurrentDatabaseFileName, '{FileNumber}', CASE WHEN @CurrentNumberOfFiles > 1 AND @CurrentNumberOfFiles <= 9 THEN CAST(@CurrentFileNumber AS nvarchar) WHEN @CurrentNumberOfFiles >= 10 THEN RIGHT('0' + CAST(@CurrentFileNumber AS nvarchar),2) ELSE '' END)

          SET @CurrentFilePath = @CurrentDirectoryPath + @DirectorySeparator + @CurrentFileName

          INSERT INTO @CurrentFiles ([Type], FilePath, Mirror)
          SELECT 'URL', @CurrentFilePath, 0

          SET @CurrentDirectoryPath = NULL
          SET @CurrentFileName = NULL
          SET @CurrentFilePath = NULL
        END

        INSERT INTO @CurrentBackupSet (Mirror, VerifyCompleted)
        SELECT 0, 0
      END

      IF EXISTS (SELECT * FROM @CurrentURLs WHERE Mirror = 1)
      BEGIN
        SET @CurrentFileNumber = 0

        WHILE @CurrentFileNumber < @CurrentNumberOfFiles
        BEGIN
          SET @CurrentFileNumber = @CurrentFileNumber + 1

          SELECT @CurrentDirectoryPath = DirectoryPath
          FROM @CurrentURLs
          WHERE @CurrentFileNumber >= (DirectoryNumber - 1) * (SELECT @CurrentNumberOfFiles / COUNT(*) FROM @CurrentURLs WHERE Mirror = 0) + 1
          AND @CurrentFileNumber <= DirectoryNumber * (SELECT @CurrentNumberOfFiles / COUNT(*) FROM @CurrentURLs WHERE Mirror = 0)
          AND Mirror = 1

          SET @CurrentFileName = REPLACE(@CurrentDatabaseFileName, '{FileNumber}', CASE WHEN @CurrentNumberOfFiles > 1 AND @CurrentNumberOfFiles <= 9 THEN CAST(@CurrentFileNumber AS nvarchar) WHEN @CurrentNumberOfFiles >= 10 THEN RIGHT('0' + CAST(@CurrentFileNumber AS nvarchar),2) ELSE '' END)

          SET @CurrentFilePath = @CurrentDirectoryPath + @DirectorySeparator + @CurrentFileName

          INSERT INTO @CurrentFiles ([Type], FilePath, Mirror)
          SELECT 'URL', @CurrentFilePath, 1

          SET @CurrentDirectoryPath = NULL
          SET @CurrentFileName = NULL
          SET @CurrentFilePath = NULL
        END

        INSERT INTO @CurrentBackupSet (Mirror, VerifyCompleted)
        SELECT 1, 0
      END

      -- Create directory
      IF @HostPlatform = 'Windows'
      AND (@BackupSoftware <> 'DATA_DOMAIN_BOOST' OR @BackupSoftware IS NULL)
      AND NOT EXISTS(SELECT * FROM @CurrentDirectories WHERE DirectoryPath = 'NUL' OR DirectoryPath IN(SELECT DirectoryPath FROM @Directories))
      BEGIN
        WHILE (1 = 1)
        BEGIN
          SELECT TOP 1 @CurrentDirectoryID = ID,
                       @CurrentDirectoryPath = DirectoryPath
          FROM @CurrentDirectories
          WHERE CreateCompleted = 0
          ORDER BY ID ASC

          IF @@ROWCOUNT = 0
          BEGIN
            BREAK
          END

          IF @DirectoryCheck = 'Y'
          BEGIN
            INSERT INTO @DirectoryInfo (FileExists, FileIsADirectory, ParentDirectoryExists)
            EXECUTE [master].dbo.xp_fileexist @CurrentDirectoryPath
          END

          IF NOT EXISTS (SELECT * FROM @DirectoryInfo WHERE FileExists = 0 AND FileIsADirectory = 1 AND ParentDirectoryExists = 1)
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'xp_create_subdir'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_create_subdir N''' + REPLACE(@CurrentDirectoryPath,'''','''''') + ''' IF @ReturnCode <> 0 RAISERROR(''Error creating directory.'', 16, 1)'

            EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @LogToTable = @LogToTable, @Execute = @Execute
            SET @Error = @@ERROR
            IF @Error <> 0 SET @CurrentCommandOutput = @Error
            IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput

            UPDATE @CurrentDirectories
            SET CreateCompleted = 1,
                CreateOutput = @CurrentCommandOutput
            WHERE ID = @CurrentDirectoryID
          END
          ELSE
          BEGIN
            UPDATE @CurrentDirectories
            SET CreateCompleted = 1,
                CreateOutput = 0
            WHERE ID = @CurrentDirectoryID
          END

          SET @CurrentDirectoryID = NULL
          SET @CurrentDirectoryPath = NULL

          SET @CurrentDatabaseContext = NULL
          SET @CurrentCommand = NULL
          SET @CurrentCommandOutput = NULL
          SET @CurrentCommandType = NULL

          DELETE FROM @DirectoryInfo
        END
      END

      IF @CleanupMode = 'BEFORE_BACKUP'
      BEGIN
        INSERT INTO @CurrentCleanupDates (CleanupDate, Mirror)
        SELECT DATEADD(hh,-(@CleanupTime),SYSDATETIME()), 0

        IF NOT EXISTS(SELECT * FROM @CurrentCleanupDates WHERE (Mirror = 0 OR Mirror IS NULL) AND CleanupDate IS NULL)
        BEGIN
          UPDATE @CurrentDirectories
          SET CleanupDate = (SELECT MIN(CleanupDate)
                             FROM @CurrentCleanupDates
                             WHERE (Mirror = 0 OR Mirror IS NULL)),
              CleanupMode = 'BEFORE_BACKUP'
          WHERE Mirror = 0
        END
      END

      IF @MirrorCleanupMode = 'BEFORE_BACKUP'
      BEGIN
        INSERT INTO @CurrentCleanupDates (CleanupDate, Mirror)
        SELECT DATEADD(hh,-(@MirrorCleanupTime),SYSDATETIME()), 1

        IF NOT EXISTS(SELECT * FROM @CurrentCleanupDates WHERE (Mirror = 1 OR Mirror IS NULL) AND CleanupDate IS NULL)
        BEGIN
          UPDATE @CurrentDirectories
          SET CleanupDate = (SELECT MIN(CleanupDate)
                             FROM @CurrentCleanupDates
                             WHERE (Mirror = 1 OR Mirror IS NULL)),
              CleanupMode = 'BEFORE_BACKUP'
          WHERE Mirror = 1
        END
      END

      -- Delete old backup files, before backup
      IF (NOT EXISTS (SELECT * FROM @CurrentDirectories WHERE CreateOutput <> 0 OR CreateOutput IS NULL) OR @HostPlatform = 'Linux')
      AND (@BackupSoftware <> 'DATA_DOMAIN_BOOST' OR @BackupSoftware IS NULL)
      AND @CurrentBackupType = @BackupType
      BEGIN
        WHILE (1 = 1)
        BEGIN
          SELECT TOP 1 @CurrentDirectoryID = ID,
                       @CurrentDirectoryPath = DirectoryPath,
                       @CurrentCleanupDate = CleanupDate
          FROM @CurrentDirectories
          WHERE CleanupDate IS NOT NULL
          AND CleanupMode = 'BEFORE_BACKUP'
          AND CleanupCompleted = 0
          ORDER BY ID ASC

          IF @@ROWCOUNT = 0
          BEGIN
            BREAK
          END

          IF @BackupSoftware IS NULL
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'xp_delete_file'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_delete_file 0, N''' + REPLACE(@CurrentDirectoryPath,'''','''''') + ''', ''' + @CurrentFileExtension + ''', ''' + CONVERT(nvarchar(19),@CurrentCleanupDate,126) + ''' IF @ReturnCode <> 0 RAISERROR(''Error deleting files.'', 16, 1)'
          END

          IF @BackupSoftware = 'LITESPEED'
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'xp_slssqlmaint'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_slssqlmaint N''-MAINTDEL -DELFOLDER "' + REPLACE(@CurrentDirectoryPath,'''','''''') + '" -DELEXTENSION "' + @CurrentFileExtension + '" -DELUNIT "' + CAST(DATEDIFF(mi,@CurrentCleanupDate,SYSDATETIME()) + 1 AS nvarchar) + '" -DELUNITTYPE "minutes" -DELUSEAGE'' IF @ReturnCode <> 0 RAISERROR(''Error deleting LiteSpeed backup files.'', 16, 1)'
          END

          IF @BackupSoftware = 'SQLBACKUP'
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'sqbutility'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.sqbutility 1032, N''' + REPLACE(@CurrentDatabaseName,'''','''''') + ''', N''' + REPLACE(@CurrentDirectoryPath,'''','''''') + ''', ''' + CASE WHEN @CurrentBackupType = 'FULL' THEN 'D' WHEN @CurrentBackupType = 'DIFF' THEN 'I' WHEN @CurrentBackupType = 'LOG' THEN 'L' END + ''', ''' + CAST(DATEDIFF(hh,@CurrentCleanupDate,SYSDATETIME()) + 1 AS nvarchar) + 'h'', ' + ISNULL('''' + REPLACE(@EncryptionKey,'''','''''') + '''','NULL') + ' IF @ReturnCode <> 0 RAISERROR(''Error deleting SQLBackup backup files.'', 16, 1)'
          END

          IF @BackupSoftware = 'SQLSAFE'
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'xp_ss_delete'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_ss_delete @filename = N''' + REPLACE(@CurrentDirectoryPath,'''','''''') + '\*.' + @CurrentFileExtension + ''', @age = ''' + CAST(DATEDIFF(mi,@CurrentCleanupDate,SYSDATETIME()) + 1 AS nvarchar) + 'Minutes'' IF @ReturnCode <> 0 RAISERROR(''Error deleting SQLsafe backup files.'', 16, 1)'
          END

          EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @LogToTable = @LogToTable, @Execute = @Execute
          SET @Error = @@ERROR
          IF @Error <> 0 SET @CurrentCommandOutput = @Error
          IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput

          UPDATE @CurrentDirectories
          SET CleanupCompleted = 1,
              CleanupOutput = @CurrentCommandOutput
          WHERE ID = @CurrentDirectoryID

          SET @CurrentDirectoryID = NULL
          SET @CurrentDirectoryPath = NULL
          SET @CurrentCleanupDate = NULL

          SET @CurrentDatabaseContext = NULL
          SET @CurrentCommand = NULL
          SET @CurrentCommandOutput = NULL
          SET @CurrentCommandType = NULL
        END
      END

      -- Perform a backup
      IF NOT EXISTS (SELECT * FROM @CurrentDirectories WHERE DirectoryPath <> 'NUL' AND DirectoryPath NOT IN(SELECT DirectoryPath FROM @Directories) AND (CreateOutput <> 0 OR CreateOutput IS NULL))
      OR @HostPlatform = 'Linux'
      BEGIN
        IF @BackupSoftware IS NULL
        BEGIN
          SET @CurrentDatabaseContext = 'master'

          SELECT @CurrentCommandType = CASE
          WHEN @CurrentBackupType IN('DIFF','FULL') THEN 'BACKUP_DATABASE'
          WHEN @CurrentBackupType = 'LOG' THEN 'BACKUP_LOG'
          END

          SELECT @CurrentCommand = CASE
          WHEN @CurrentBackupType IN('DIFF','FULL') THEN 'BACKUP DATABASE ' + QUOTENAME(@CurrentDatabaseName)
          WHEN @CurrentBackupType = 'LOG' THEN 'BACKUP LOG ' + QUOTENAME(@CurrentDatabaseName)
          END

          IF @ReadWriteFileGroups = 'Y' AND @CurrentDatabaseName <> 'master' SET @CurrentCommand += ' READ_WRITE_FILEGROUPS'

          SET @CurrentCommand += ' TO'

          SELECT @CurrentCommand += ' ' + [Type] + ' = N''' + REPLACE(FilePath,'''','''''') + '''' + CASE WHEN ROW_NUMBER() OVER (ORDER BY FilePath ASC) <> @CurrentNumberOfFiles THEN ',' ELSE '' END
          FROM @CurrentFiles
          WHERE Mirror = 0
          ORDER BY FilePath ASC

          IF EXISTS(SELECT * FROM @CurrentFiles WHERE Mirror = 1)
          BEGIN
            SET @CurrentCommand += ' MIRROR TO'

            SELECT @CurrentCommand += ' ' + [Type] + ' = N''' + REPLACE(FilePath,'''','''''') + '''' + CASE WHEN ROW_NUMBER() OVER (ORDER BY FilePath ASC) <> @CurrentNumberOfFiles THEN ',' ELSE '' END
            FROM @CurrentFiles
            WHERE Mirror = 1
            ORDER BY FilePath ASC
          END

          SET @CurrentCommand += ' WITH '
          IF @Checksum = 'Y' SET @CurrentCommand += 'CHECKSUM'
          IF @Checksum = 'N' SET @CurrentCommand += 'NO_CHECKSUM'

          IF @Version >= 10
          BEGIN
            SET @CurrentCommand += CASE WHEN @Compress = 'Y' AND (@CurrentIsEncrypted = 0 OR (@CurrentIsEncrypted = 1 AND ((@Version >= 13 AND @CurrentMaxTransferSize >= 65537) OR @Version >= 15.0404316 OR SERVERPROPERTY('EngineEdition') = 8))) THEN ', COMPRESSION' ELSE ', NO_COMPRESSION' END
          END

          IF @Compress = 'Y' AND @CompressionAlgorithm IS NOT NULL
          BEGIN
            SET @CurrentCommand += ' (ALGORITHM = ' + @CompressionAlgorithm + ')'
          END

          IF @CurrentBackupType = 'DIFF' SET @CurrentCommand += ', DIFFERENTIAL'

          IF EXISTS(SELECT * FROM @CurrentFiles WHERE Mirror = 1)
          BEGIN
            SET @CurrentCommand += ', FORMAT'
          END

          IF @CopyOnly = 'Y' SET @CurrentCommand += ', COPY_ONLY'
          IF @NoRecovery = 'Y' AND @CurrentBackupType = 'LOG' SET @CurrentCommand += ', NORECOVERY'
          IF @Init = 'Y' SET @CurrentCommand += ', INIT'
          IF @Format = 'Y' SET @CurrentCommand += ', FORMAT'
          IF @BlockSize IS NOT NULL SET @CurrentCommand += ', BLOCKSIZE = ' + CAST(@BlockSize AS nvarchar)
          IF @BufferCount IS NOT NULL SET @CurrentCommand += ', BUFFERCOUNT = ' + CAST(@BufferCount AS nvarchar)
          IF @CurrentMaxTransferSize IS NOT NULL SET @CurrentCommand += ', MAXTRANSFERSIZE = ' + CAST(@CurrentMaxTransferSize AS nvarchar)
          IF @Description IS NOT NULL SET @CurrentCommand += ', DESCRIPTION = N''' + REPLACE(@Description,'''','''''') + ''''
          IF @BackupSetName IS NOT NULL SET @CurrentCommand += ', NAME = N''' + REPLACE(@BackupSetName,'''','''''') + ''''
          IF @Stats IS NOT NULL SET @CurrentCommand += ', STATS = ' + CAST(@Stats AS nvarchar)
          IF @BackupOptions IS NOT NULL SET @CurrentCommand += ', BACKUP_OPTIONS = N''' + REPLACE(@BackupOptions,'''','''''') + ''''
          IF @Encrypt = 'Y' SET @CurrentCommand += ', ENCRYPTION (ALGORITHM = ' + UPPER(@EncryptionAlgorithm) + ', '
          IF @Encrypt = 'Y' AND @ServerCertificate IS NOT NULL SET @CurrentCommand += 'SERVER CERTIFICATE = ' + QUOTENAME(@ServerCertificate)
          IF @Encrypt = 'Y' AND @ServerAsymmetricKey IS NOT NULL SET @CurrentCommand += 'SERVER ASYMMETRIC KEY = ' + QUOTENAME(@ServerAsymmetricKey)
          IF @Encrypt = 'Y' SET @CurrentCommand += ')'
          IF @URL IS NOT NULL AND @Credential IS NOT NULL SET @CurrentCommand += ', CREDENTIAL = N''' + REPLACE(@Credential,'''','''''') + ''''
          IF @ExpireDate IS NOT NULL SET @CurrentCommand += ', EXPIREDATE = ''' + CONVERT(nvarchar, @ExpireDate, 21) + ''''
          IF @RetainDays IS NOT NULL SET @CurrentCommand += ', RETAINDAYS = ' + CAST(@RetainDays AS nvarchar)
        END

        IF @BackupSoftware = 'LITESPEED'
        BEGIN
          SET @CurrentDatabaseContext = 'master'

          SELECT @CurrentCommandType = CASE
          WHEN @CurrentBackupType IN('DIFF','FULL') THEN 'xp_backup_database'
          WHEN @CurrentBackupType = 'LOG' THEN 'xp_backup_log'
          END

          SELECT @CurrentCommand = CASE
          WHEN @CurrentBackupType IN('DIFF','FULL') THEN 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_backup_database @database = N''' + REPLACE(@CurrentDatabaseName,'''','''''') + ''''
          WHEN @CurrentBackupType = 'LOG' THEN 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_backup_log @database = N''' + REPLACE(@CurrentDatabaseName,'''','''''') + ''''
          END

          SELECT @CurrentCommand += ', @filename = N''' + REPLACE(FilePath,'''','''''') + ''''
          FROM @CurrentFiles
          WHERE Mirror = 0
          ORDER BY FilePath ASC

          IF EXISTS(SELECT * FROM @CurrentFiles WHERE Mirror = 1)
          BEGIN
            SELECT @CurrentCommand += ', @mirror = N''' + REPLACE(FilePath,'''','''''') + ''''
            FROM @CurrentFiles
            WHERE Mirror = 1
            ORDER BY FilePath ASC
          END

          SET @CurrentCommand += ', @with = '''
          IF @Checksum = 'Y' SET @CurrentCommand += 'CHECKSUM'
          IF @Checksum = 'N' SET @CurrentCommand += 'NO_CHECKSUM'
          IF @CurrentBackupType = 'DIFF' SET @CurrentCommand += ', DIFFERENTIAL'
          IF @CopyOnly = 'Y' SET @CurrentCommand += ', COPY_ONLY'
          IF @NoRecovery = 'Y' AND @CurrentBackupType = 'LOG' SET @CurrentCommand += ', NORECOVERY'
          IF @BlockSize IS NOT NULL SET @CurrentCommand += ', BLOCKSIZE = ' + CAST(@BlockSize AS nvarchar)
          SET @CurrentCommand += ''''
          IF @ReadWriteFileGroups = 'Y' AND @CurrentDatabaseName <> 'master' SET @CurrentCommand += ', @read_write_filegroups = 1'
          IF @CompressionLevel IS NOT NULL SET @CurrentCommand += ', @compressionlevel = ' + CAST(@CompressionLevel AS nvarchar)
          IF @AdaptiveCompression IS NOT NULL SET @CurrentCommand += ', @adaptivecompression = ''' + CASE WHEN @AdaptiveCompression = 'SIZE' THEN 'Size' WHEN @AdaptiveCompression = 'SPEED' THEN 'Speed' END + ''''
          IF @BufferCount IS NOT NULL SET @CurrentCommand += ', @buffercount = ' + CAST(@BufferCount AS nvarchar)
          IF @CurrentMaxTransferSize IS NOT NULL SET @CurrentCommand += ', @maxtransfersize = ' + CAST(@CurrentMaxTransferSize AS nvarchar)
          IF @Threads IS NOT NULL SET @CurrentCommand += ', @threads = ' + CAST(@Threads AS nvarchar)
          IF @Init = 'Y' SET @CurrentCommand += ', @init = 1'
          IF @Format = 'Y' SET @CurrentCommand += ', @format = 1'
          IF @Throttle IS NOT NULL SET @CurrentCommand += ', @throttle = ' + CAST(@Throttle AS nvarchar)
          IF @Description IS NOT NULL SET @CurrentCommand += ', @desc = N''' + REPLACE(@Description,'''','''''') + ''''
          IF @ObjectLevelRecoveryMap = 'Y' SET @CurrentCommand += ', @olrmap = 1'
          IF @ExpireDate IS NOT NULL SET @CurrentCommand += ', @expiration = ''' + CONVERT(nvarchar, @ExpireDate, 21) + ''''
          IF @RetainDays IS NOT NULL SET @CurrentCommand += ', @retaindays = ' + CAST(@RetainDays AS nvarchar)

          IF @EncryptionAlgorithm IS NOT NULL SET @CurrentCommand += ', @cryptlevel = ' + CASE
          WHEN @EncryptionAlgorithm = 'RC2_40' THEN '0'
          WHEN @EncryptionAlgorithm = 'RC2_56' THEN '1'
          WHEN @EncryptionAlgorithm = 'RC2_112' THEN '2'
          WHEN @EncryptionAlgorithm = 'RC2_128' THEN '3'
          WHEN @EncryptionAlgorithm = 'TRIPLE_DES_3KEY' THEN '4'
          WHEN @EncryptionAlgorithm = 'RC4_128' THEN '5'
          WHEN @EncryptionAlgorithm = 'AES_128' THEN '6'
          WHEN @EncryptionAlgorithm = 'AES_192' THEN '7'
          WHEN @EncryptionAlgorithm = 'AES_256' THEN '8'
          END

          IF @EncryptionKey IS NOT NULL SET @CurrentCommand += ', @encryptionkey = N''' + REPLACE(@EncryptionKey,'''','''''') + ''''
          SET @CurrentCommand += ' IF @ReturnCode <> 0 RAISERROR(''Error performing LiteSpeed backup.'', 16, 1)'
        END

        IF @BackupSoftware = 'SQLBACKUP'
        BEGIN
          SET @CurrentDatabaseContext = 'master'

          SET @CurrentCommandType = 'sqlbackup'

          SELECT @CurrentCommand = CASE
          WHEN @CurrentBackupType IN('DIFF','FULL') THEN 'BACKUP DATABASE ' + QUOTENAME(@CurrentDatabaseName)
          WHEN @CurrentBackupType = 'LOG' THEN 'BACKUP LOG ' + QUOTENAME(@CurrentDatabaseName)
          END

          IF @ReadWriteFileGroups = 'Y' AND @CurrentDatabaseName <> 'master' SET @CurrentCommand += ' READ_WRITE_FILEGROUPS'

          SET @CurrentCommand += ' TO'

          SELECT @CurrentCommand += ' DISK = N''' + REPLACE(FilePath,'''','''''') + '''' + CASE WHEN ROW_NUMBER() OVER (ORDER BY FilePath ASC) <> @CurrentNumberOfFiles THEN ',' ELSE '' END
          FROM @CurrentFiles
          WHERE Mirror = 0
          ORDER BY FilePath ASC

          SET @CurrentCommand += ' WITH '

          IF EXISTS(SELECT * FROM @CurrentFiles WHERE Mirror = 1)
          BEGIN
            SET @CurrentCommand += ' MIRRORFILE' + ' = N''' + REPLACE((SELECT FilePath FROM @CurrentFiles WHERE Mirror = 1),'''','''''') + ''', '
          END

          IF @Checksum = 'Y' SET @CurrentCommand += 'CHECKSUM'
          IF @Checksum = 'N' SET @CurrentCommand += 'NO_CHECKSUM'
          IF @CurrentBackupType = 'DIFF' SET @CurrentCommand += ', DIFFERENTIAL'
          IF @CopyOnly = 'Y' SET @CurrentCommand += ', COPY_ONLY'
          IF @NoRecovery = 'Y' AND @CurrentBackupType = 'LOG' SET @CurrentCommand += ', NORECOVERY'
          IF @Init = 'Y' SET @CurrentCommand += ', INIT'
          IF @Format = 'Y' SET @CurrentCommand += ', FORMAT'
          IF @CompressionLevel IS NOT NULL SET @CurrentCommand += ', COMPRESSION = ' + CAST(@CompressionLevel AS nvarchar)
          IF @Threads IS NOT NULL SET @CurrentCommand += ', THREADCOUNT = ' + CAST(@Threads AS nvarchar)
          IF @CurrentMaxTransferSize IS NOT NULL SET @CurrentCommand += ', MAXTRANSFERSIZE = ' + CAST(@CurrentMaxTransferSize AS nvarchar)
          IF @Description IS NOT NULL SET @CurrentCommand += ', DESCRIPTION = N''' + REPLACE(@Description,'''','''''') + ''''

          IF @EncryptionAlgorithm IS NOT NULL SET @CurrentCommand += ', KEYSIZE = ' + CASE
          WHEN @EncryptionAlgorithm = 'AES_128' THEN '128'
          WHEN @EncryptionAlgorithm = 'AES_256' THEN '256'
          END

          IF @EncryptionKey IS NOT NULL SET @CurrentCommand += ', PASSWORD = N''' + REPLACE(@EncryptionKey,'''','''''') + ''''
          SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.sqlbackup N''-SQL "' + REPLACE(@CurrentCommand,'''','''''') + '"''' + ' IF @ReturnCode <> 0 RAISERROR(''Error performing SQLBackup backup.'', 16, 1)'
        END

        IF @BackupSoftware = 'SQLSAFE'
        BEGIN
          SET @CurrentDatabaseContext = 'master'

          SET @CurrentCommandType = 'xp_ss_backup'

          SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_ss_backup @database = N''' + REPLACE(@CurrentDatabaseName,'''','''''') + ''''

          SELECT @CurrentCommand += ', ' + CASE WHEN ROW_NUMBER() OVER (ORDER BY FilePath ASC) = 1 THEN '@filename' ELSE '@backupfile' END + ' = N''' + REPLACE(FilePath,'''','''''') + ''''
          FROM @CurrentFiles
          WHERE Mirror = 0
          ORDER BY FilePath ASC

          SELECT @CurrentCommand += ', @mirrorfile = N''' + REPLACE(FilePath,'''','''''') + ''''
          FROM @CurrentFiles
          WHERE Mirror = 1
          ORDER BY FilePath ASC

          SET @CurrentCommand += ', @backuptype = ' + CASE WHEN @CurrentBackupType = 'FULL' THEN '''Full''' WHEN @CurrentBackupType = 'DIFF' THEN '''Differential''' WHEN @CurrentBackupType = 'LOG' THEN '''Log''' END
          IF @ReadWriteFileGroups = 'Y' AND @CurrentDatabaseName <> 'master' SET @CurrentCommand += ', @readwritefilegroups = 1'
          SET @CurrentCommand += ', @checksum = ' + CASE WHEN @Checksum = 'Y' THEN '1' WHEN @Checksum = 'N' THEN '0' END
          SET @CurrentCommand += ', @copyonly = ' + CASE WHEN @CopyOnly = 'Y' THEN '1' WHEN @CopyOnly = 'N' THEN '0' END
          IF @CompressionLevel IS NOT NULL SET @CurrentCommand += ', @compressionlevel = ' + CAST(@CompressionLevel AS nvarchar)
          IF @Threads IS NOT NULL SET @CurrentCommand += ', @threads = ' + CAST(@Threads AS nvarchar)
          IF @Init = 'Y' SET @CurrentCommand += ', @overwrite = 1'
          IF @Description IS NOT NULL SET @CurrentCommand += ', @desc = N''' + REPLACE(@Description,'''','''''') + ''''

          IF @EncryptionAlgorithm IS NOT NULL SET @CurrentCommand += ', @encryptiontype = N''' + CASE
          WHEN @EncryptionAlgorithm = 'AES_128' THEN 'AES128'
          WHEN @EncryptionAlgorithm = 'AES_256' THEN 'AES256'
          END + ''''

          IF @EncryptionKey IS NOT NULL SET @CurrentCommand += ', @encryptedbackuppassword = N''' + REPLACE(@EncryptionKey,'''','''''') + ''''
          SET @CurrentCommand += ' IF @ReturnCode <> 0 RAISERROR(''Error performing SQLsafe backup.'', 16, 1)'
        END

        IF @BackupSoftware = 'DATA_DOMAIN_BOOST'
        BEGIN
          SET @CurrentDatabaseContext = 'master'

          SET @CurrentCommandType = 'emc_run_backup'

          SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.emc_run_backup '''

          SET @CurrentCommand += ' -c ' + CASE WHEN @Cluster IS NOT NULL AND @CurrentAvailabilityGroup IS NOT NULL THEN @Cluster ELSE CAST(SERVERPROPERTY('MachineName') AS nvarchar) END

          SET @CurrentCommand += ' -l ' + CASE
          WHEN @CurrentBackupType = 'FULL' THEN 'full'
          WHEN @CurrentBackupType = 'DIFF' THEN 'diff'
          WHEN @CurrentBackupType = 'LOG' THEN 'incr'
          END

          IF @NoRecovery = 'Y' SET @CurrentCommand += ' -H'

          IF @CleanupTime IS NOT NULL SET @CurrentCommand += ' -y +' + CAST(@CleanupTime/24 + CASE WHEN @CleanupTime%24 > 0 THEN 1 ELSE 0 END AS nvarchar) + 'd'

          IF @Checksum = 'Y' SET @CurrentCommand += ' -k'

          SET @CurrentCommand += ' -S ' + CAST(@CurrentNumberOfFiles AS nvarchar)

          IF @Description IS NOT NULL SET @CurrentCommand += ' -b "' + REPLACE(@Description,'''','''''') + '"'

          IF @BufferCount IS NOT NULL SET @CurrentCommand += ' -O "BUFFERCOUNT=' + CAST(@BufferCount AS nvarchar) + '"'

          IF @ReadWriteFileGroups = 'Y' AND @CurrentDatabaseName <> 'master' SET @CurrentCommand += ' -O "READ_WRITE_FILEGROUPS"'

          IF @DataDomainBoostHost IS NOT NULL SET @CurrentCommand += ' -a "NSR_DFA_SI_DD_HOST=' + REPLACE(@DataDomainBoostHost,'''','''''') + '"'
          IF @DataDomainBoostUser IS NOT NULL SET @CurrentCommand += ' -a "NSR_DFA_SI_DD_USER=' + REPLACE(@DataDomainBoostUser,'''','''''') + '"'
          IF @DataDomainBoostDevicePath IS NOT NULL SET @CurrentCommand += ' -a "NSR_DFA_SI_DEVICE_PATH=' + REPLACE(@DataDomainBoostDevicePath,'''','''''') + '"'
          IF @DataDomainBoostLockboxPath IS NOT NULL SET @CurrentCommand += ' -a "NSR_DFA_SI_DD_LOCKBOX_PATH=' + REPLACE(@DataDomainBoostLockboxPath,'''','''''') + '"'
          SET @CurrentCommand += ' -a "NSR_SKIP_NON_BACKUPABLE_STATE_DB=TRUE"'
          SET @CurrentCommand += ' -a "BACKUP_PROMOTION=NONE"'
          IF @CopyOnly = 'Y' SET @CurrentCommand += ' -a "NSR_COPY_ONLY=TRUE"'

          IF SERVERPROPERTY('InstanceName') IS NULL SET @CurrentCommand += ' "MSSQL' + ':' + REPLACE(REPLACE(@CurrentDatabaseName,'''',''''''),'.','\.') + '"'
          IF SERVERPROPERTY('InstanceName') IS NOT NULL SET @CurrentCommand += ' "MSSQL$' + CAST(SERVERPROPERTY('InstanceName') AS nvarchar) + ':' + REPLACE(REPLACE(@CurrentDatabaseName,'''',''''''),'.','\.') + '"'

          SET @CurrentCommand += ''''

          SET @CurrentCommand += ' IF @ReturnCode <> 0 RAISERROR(''Error performing Data Domain Boost backup.'', 16, 1)'
        END

        EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @LogToTable = @LogToTable, @Execute = @Execute
        SET @Error = @@ERROR
        IF @Error <> 0 SET @CurrentCommandOutput = @Error
        IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput
        SET @CurrentBackupOutput = @CurrentCommandOutput
      END

      -- Verify the backup
      IF @CurrentBackupOutput = 0 AND @Verify = 'Y'
      BEGIN
        WHILE (1 = 1)
        BEGIN
          SELECT TOP 1 @CurrentBackupSetID = ID,
                       @CurrentIsMirror = Mirror
          FROM @CurrentBackupSet
          WHERE VerifyCompleted = 0
          ORDER BY ID ASC

          IF @@ROWCOUNT = 0
          BEGIN
            BREAK
          END

          IF @BackupSoftware IS NULL
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'RESTORE_VERIFYONLY'

            SET @CurrentCommand = 'RESTORE VERIFYONLY FROM'

            SELECT @CurrentCommand += ' ' + [Type] + ' = N''' + REPLACE(FilePath,'''','''''') + '''' + CASE WHEN ROW_NUMBER() OVER (ORDER BY FilePath ASC) <> @CurrentNumberOfFiles THEN ',' ELSE '' END
            FROM @CurrentFiles
            WHERE Mirror = @CurrentIsMirror
            ORDER BY FilePath ASC

            SET @CurrentCommand += ' WITH '
            IF @Checksum = 'Y' SET @CurrentCommand += 'CHECKSUM'
            IF @Checksum = 'N' SET @CurrentCommand += 'NO_CHECKSUM'
            IF @Stats IS NOT NULL SET @CurrentCommand += ', STATS = ' + CAST(@Stats AS nvarchar)
            IF @BackupOptions IS NOT NULL SET @CurrentCommand += ', RESTORE_OPTIONS = N''' + REPLACE(@BackupOptions,'''','''''') + ''''
            IF @URL IS NOT NULL AND @Credential IS NOT NULL SET @CurrentCommand += ', CREDENTIAL = N''' + REPLACE(@Credential,'''','''''') + ''''
          END

          IF @BackupSoftware = 'LITESPEED'
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'xp_restore_verifyonly'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_restore_verifyonly'

            SELECT @CurrentCommand += ' @filename = N''' + REPLACE(FilePath,'''','''''') + '''' + CASE WHEN ROW_NUMBER() OVER (ORDER BY FilePath ASC) <> @CurrentNumberOfFiles THEN ',' ELSE '' END
            FROM @CurrentFiles
            WHERE Mirror = @CurrentIsMirror
            ORDER BY FilePath ASC

            SET @CurrentCommand += ', @with = '''
            IF @Checksum = 'Y' SET @CurrentCommand += 'CHECKSUM'
            IF @Checksum = 'N' SET @CurrentCommand += 'NO_CHECKSUM'
            SET @CurrentCommand += ''''
            IF @EncryptionKey IS NOT NULL SET @CurrentCommand += ', @encryptionkey = N''' + REPLACE(@EncryptionKey,'''','''''') + ''''

            SET @CurrentCommand += ' IF @ReturnCode <> 0 RAISERROR(''Error verifying LiteSpeed backup.'', 16, 1)'
          END

          IF @BackupSoftware = 'SQLBACKUP'
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'sqlbackup'

            SET @CurrentCommand = 'RESTORE VERIFYONLY FROM'

            SELECT @CurrentCommand += ' DISK = N''' + REPLACE(FilePath,'''','''''') + '''' + CASE WHEN ROW_NUMBER() OVER (ORDER BY FilePath ASC) <> @CurrentNumberOfFiles THEN ',' ELSE '' END
            FROM @CurrentFiles
            WHERE Mirror = @CurrentIsMirror
            ORDER BY FilePath ASC

            SET @CurrentCommand += ' WITH '
            IF @Checksum = 'Y' SET @CurrentCommand += 'CHECKSUM'
            IF @Checksum = 'N' SET @CurrentCommand += 'NO_CHECKSUM'
            IF @EncryptionKey IS NOT NULL SET @CurrentCommand += ', PASSWORD = N''' + REPLACE(@EncryptionKey,'''','''''') + ''''

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.sqlbackup N''-SQL "' + REPLACE(@CurrentCommand,'''','''''') + '"''' + ' IF @ReturnCode <> 0 RAISERROR(''Error verifying SQLBackup backup.'', 16, 1)'
          END

          IF @BackupSoftware = 'SQLSAFE'
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'xp_ss_verify'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_ss_verify @database = N''' + REPLACE(@CurrentDatabaseName,'''','''''') + ''''

            SELECT @CurrentCommand += ', ' + CASE WHEN ROW_NUMBER() OVER (ORDER BY FilePath ASC) = 1 THEN '@filename' ELSE '@backupfile' END + ' = N''' + REPLACE(FilePath,'''','''''') + ''''
            FROM @CurrentFiles
            WHERE Mirror = @CurrentIsMirror
            ORDER BY FilePath ASC

            SET @CurrentCommand += ' IF @ReturnCode <> 0 RAISERROR(''Error verifying SQLsafe backup.'', 16, 1)'
          END

          EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @LogToTable = @LogToTable, @Execute = @Execute
          SET @Error = @@ERROR
          IF @Error <> 0 SET @CurrentCommandOutput = @Error
          IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput

          UPDATE @CurrentBackupSet
          SET VerifyCompleted = 1,
              VerifyOutput = @CurrentCommandOutput
          WHERE ID = @CurrentBackupSetID

          SET @CurrentBackupSetID = NULL
          SET @CurrentIsMirror = NULL

          SET @CurrentDatabaseContext = NULL
          SET @CurrentCommand = NULL
          SET @CurrentCommandOutput = NULL
          SET @CurrentCommandType = NULL
        END
      END

      IF @CleanupMode = 'AFTER_BACKUP'
      BEGIN
        INSERT INTO @CurrentCleanupDates (CleanupDate, Mirror)
        SELECT DATEADD(hh,-(@CleanupTime),SYSDATETIME()), 0

        IF NOT EXISTS(SELECT * FROM @CurrentCleanupDates WHERE (Mirror = 0 OR Mirror IS NULL) AND CleanupDate IS NULL)
        BEGIN
          UPDATE @CurrentDirectories
          SET CleanupDate = (SELECT MIN(CleanupDate)
                             FROM @CurrentCleanupDates
                             WHERE (Mirror = 0 OR Mirror IS NULL)),
              CleanupMode = 'AFTER_BACKUP'
          WHERE Mirror = 0
        END
      END

      IF @MirrorCleanupMode = 'AFTER_BACKUP'
      BEGIN
        INSERT INTO @CurrentCleanupDates (CleanupDate, Mirror)
        SELECT DATEADD(hh,-(@MirrorCleanupTime),SYSDATETIME()), 1

        IF NOT EXISTS(SELECT * FROM @CurrentCleanupDates WHERE (Mirror = 1 OR Mirror IS NULL) AND CleanupDate IS NULL)
        BEGIN
          UPDATE @CurrentDirectories
          SET CleanupDate = (SELECT MIN(CleanupDate)
                             FROM @CurrentCleanupDates
                             WHERE (Mirror = 1 OR Mirror IS NULL)),
              CleanupMode = 'AFTER_BACKUP'
          WHERE Mirror = 1
        END
      END

      -- Delete old backup files, after backup
      IF ((@CurrentBackupOutput = 0 AND @Verify = 'N')
      OR (@CurrentBackupOutput = 0 AND @Verify = 'Y' AND NOT EXISTS (SELECT * FROM @CurrentBackupSet WHERE VerifyOutput <> 0 OR VerifyOutput IS NULL)))
      AND (@BackupSoftware <> 'DATA_DOMAIN_BOOST' OR @BackupSoftware IS NULL)
      AND @CurrentBackupType = @BackupType
      BEGIN
        WHILE (1 = 1)
        BEGIN
          SELECT TOP 1 @CurrentDirectoryID = ID,
                       @CurrentDirectoryPath = DirectoryPath,
                       @CurrentCleanupDate = CleanupDate
          FROM @CurrentDirectories
          WHERE CleanupDate IS NOT NULL
          AND CleanupMode = 'AFTER_BACKUP'
          AND CleanupCompleted = 0
          ORDER BY ID ASC

          IF @@ROWCOUNT = 0
          BEGIN
            BREAK
          END

          IF @BackupSoftware IS NULL
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'xp_delete_file'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_delete_file 0, N''' + REPLACE(@CurrentDirectoryPath,'''','''''') + ''', ''' + @CurrentFileExtension + ''', ''' + CONVERT(nvarchar(19),@CurrentCleanupDate,126) + ''' IF @ReturnCode <> 0 RAISERROR(''Error deleting files.'', 16, 1)'
          END

          IF @BackupSoftware = 'LITESPEED'
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'xp_slssqlmaint'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_slssqlmaint N''-MAINTDEL -DELFOLDER "' + REPLACE(@CurrentDirectoryPath,'''','''''') + '" -DELEXTENSION "' + @CurrentFileExtension + '" -DELUNIT "' + CAST(DATEDIFF(mi,@CurrentCleanupDate,SYSDATETIME()) + 1 AS nvarchar) + '" -DELUNITTYPE "minutes" -DELUSEAGE'' IF @ReturnCode <> 0 RAISERROR(''Error deleting LiteSpeed backup files.'', 16, 1)'
          END

          IF @BackupSoftware = 'SQLBACKUP'
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'sqbutility'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.sqbutility 1032, N''' + REPLACE(@CurrentDatabaseName,'''','''''') + ''', N''' + REPLACE(@CurrentDirectoryPath,'''','''''') + ''', ''' + CASE WHEN @CurrentBackupType = 'FULL' THEN 'D' WHEN @CurrentBackupType = 'DIFF' THEN 'I' WHEN @CurrentBackupType = 'LOG' THEN 'L' END + ''', ''' + CAST(DATEDIFF(hh,@CurrentCleanupDate,SYSDATETIME()) + 1 AS nvarchar) + 'h'', ' + ISNULL('''' + REPLACE(@EncryptionKey,'''','''''') + '''','NULL') + ' IF @ReturnCode <> 0 RAISERROR(''Error deleting SQLBackup backup files.'', 16, 1)'
          END

          IF @BackupSoftware = 'SQLSAFE'
          BEGIN
            SET @CurrentDatabaseContext = 'master'

            SET @CurrentCommandType = 'xp_ss_delete'

            SET @CurrentCommand = 'DECLARE @ReturnCode int EXECUTE @ReturnCode = dbo.xp_ss_delete @filename = N''' + REPLACE(@CurrentDirectoryPath,'''','''''') + '\*.' + @CurrentFileExtension + ''', @age = ''' + CAST(DATEDIFF(mi,@CurrentCleanupDate,SYSDATETIME()) + 1 AS nvarchar) + 'Minutes'' IF @ReturnCode <> 0 RAISERROR(''Error deleting SQLsafe backup files.'', 16, 1)'
          END

          EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @LogToTable = @LogToTable, @Execute = @Execute
          SET @Error = @@ERROR
          IF @Error <> 0 SET @CurrentCommandOutput = @Error
          IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput

          UPDATE @CurrentDirectories
          SET CleanupCompleted = 1,
              CleanupOutput = @CurrentCommandOutput
          WHERE ID = @CurrentDirectoryID

          SET @CurrentDirectoryID = NULL
          SET @CurrentDirectoryPath = NULL
          SET @CurrentCleanupDate = NULL

          SET @CurrentDatabaseContext = NULL
          SET @CurrentCommand = NULL
          SET @CurrentCommandOutput = NULL
          SET @CurrentCommandType = NULL
        END
      END
    END

    IF @CurrentDatabaseState = 'SUSPECT'
    BEGIN
      SET @ErrorMessage = 'The database ' + QUOTENAME(@CurrentDatabaseName) + ' is in a SUSPECT state.'
      RAISERROR('%s',16,1,@ErrorMessage) WITH NOWAIT
      SET @Error = @@ERROR
      RAISERROR(@EmptyLine,10,1) WITH NOWAIT
    END

    -- Update that the database is completed
    IF @DatabasesInParallel = 'Y'
    BEGIN
      UPDATE dbo.QueueDatabase
      SET DatabaseEndTime = SYSDATETIME()
      WHERE QueueID = @QueueID
      AND DatabaseName = @CurrentDatabaseName
    END
    ELSE
    BEGIN
      UPDATE @tmpDatabases
      SET Completed = 1
      WHERE Selected = 1
      AND Completed = 0
      AND ID = @CurrentDBID
    END

    -- Clear variables
    SET @CurrentDBID = NULL
    SET @CurrentDatabaseName = NULL

    SET @CurrentDatabase_sp_executesql = NULL

    SET @CurrentUserAccess = NULL
    SET @CurrentIsReadOnly = NULL
    SET @CurrentDatabaseState = NULL
    SET @CurrentInStandby = NULL
    SET @CurrentRecoveryModel = NULL
    SET @CurrentIsEncrypted = NULL
    SET @CurrentDatabaseSize = NULL

    SET @CurrentBackupType = NULL
    SET @CurrentMaxTransferSize = NULL
    SET @CurrentNumberOfFiles = NULL
    SET @CurrentFileExtension = NULL
    SET @CurrentFileNumber = NULL
    SET @CurrentDifferentialBaseLSN = NULL
    SET @CurrentDifferentialBaseIsSnapshot = NULL
    SET @CurrentLogLSN = NULL
    SET @BackupInProcess = NULL
    SET @CurrentLatestBackup = NULL
    SET @CurrentDatabaseNameFS = NULL
    SET @CurrentDirectoryStructure = NULL
    SET @CurrentDatabaseFileName = NULL
    SET @CurrentMaxFilePathLength = NULL
    SET @CurrentDate = NULL
    SET @CurrentDateUTC = NULL
    SET @CurrentCleanupDate = NULL
    SET @CurrentReplicaID = NULL
    SET @CurrentAvailabilityGroupID = NULL
    SET @CurrentAvailabilityGroup = NULL
    SET @CurrentAvailabilityGroupRole = NULL
    SET @CurrentAvailabilityGroupBackupPreference = NULL
    SET @CurrentIsPreferredBackupReplica = NULL
    SET @CurrentDatabaseMirroringRole = NULL
    SET @CurrentLogShippingRole = NULL
    SET @CurrentLastLogBackup = NULL
    SET @CurrentLogSizeSinceLastLogBackup = NULL
    SET @CurrentAllocatedExtentPageCount = NULL
    SET @CurrentModifiedExtentPageCount = NULL

    SET @CurrentDatabaseContext = NULL
    SET @CurrentCommand = NULL
    SET @CurrentCommandOutput = NULL
    SET @CurrentCommandType = NULL

    SET @CurrentBackupOutput = NULL

    DELETE FROM @CurrentDirectories
    DELETE FROM @CurrentURLs
    DELETE FROM @CurrentFiles
    DELETE FROM @CurrentCleanupDates
    DELETE FROM @CurrentBackupSet

  END

  ----------------------------------------------------------------------------------------------------
  --// Log completing information                                                                 //--
  ----------------------------------------------------------------------------------------------------

  Logging:
  SET @EndMessage = 'Date and time: ' + CONVERT(nvarchar,SYSDATETIME(),120)
  RAISERROR('%s',10,1,@EndMessage) WITH NOWAIT

  RAISERROR(@EmptyLine,10,1) WITH NOWAIT

  IF @ReturnCode <> 0
  BEGIN
    RETURN @ReturnCode
  END

  ----------------------------------------------------------------------------------------------------

END
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[DatabaseIntegrityCheck]') AND type in (N'P', N'PC'))
BEGIN
EXEC dbo.sp_executesql @statement = N'CREATE PROCEDURE [dbo].[DatabaseIntegrityCheck] AS'
END
GO
ALTER PROCEDURE [dbo].[DatabaseIntegrityCheck]

@Databases nvarchar(max) = NULL,
@CheckCommands nvarchar(max) = 'CHECKDB',
@PhysicalOnly nvarchar(max) = 'N',
@DataPurity nvarchar(max) = 'N',
@NoIndex nvarchar(max) = 'N',
@ExtendedLogicalChecks nvarchar(max) = 'N',
@NoInformationalMessages nvarchar(max) = 'N',
@TabLock nvarchar(max) = 'N',
@FileGroups nvarchar(max) = NULL,
@Objects nvarchar(max) = NULL,
@MaxDOP int = NULL,
@AvailabilityGroups nvarchar(max) = NULL,
@AvailabilityGroupReplicas nvarchar(max) = 'ALL',
@Updateability nvarchar(max) = 'ALL',
@TimeLimit int = NULL,
@LockTimeout int = NULL,
@LockMessageSeverity int = 16,
@StringDelimiter nvarchar(max) = ',',
@DatabaseOrder nvarchar(max) = NULL,
@DatabasesInParallel nvarchar(max) = 'N',
@LogToTable nvarchar(max) = 'N',
@Execute nvarchar(max) = 'Y'

AS

BEGIN

  ----------------------------------------------------------------------------------------------------
  --// Source:  https://ola.hallengren.com                                                        //--
  --// License: https://ola.hallengren.com/license.html                                           //--
  --// GitHub:  https://github.com/olahallengren/sql-server-maintenance-solution                  //--
  --// Version: 2025-01-28 20:19:42                                                               //--
  ----------------------------------------------------------------------------------------------------

  SET NOCOUNT ON

  DECLARE @StartMessage nvarchar(max)
  DECLARE @EndMessage nvarchar(max)
  DECLARE @DatabaseMessage nvarchar(max)
  DECLARE @ErrorMessage nvarchar(max)
  DECLARE @Severity int

  DECLARE @StartTime datetime2 = SYSDATETIME()
  DECLARE @SchemaName nvarchar(max) = OBJECT_SCHEMA_NAME(@@PROCID)
  DECLARE @ObjectName nvarchar(max) = OBJECT_NAME(@@PROCID)
  DECLARE @VersionTimestamp nvarchar(max) = SUBSTRING(OBJECT_DEFINITION(@@PROCID),CHARINDEX('--// Version: ',OBJECT_DEFINITION(@@PROCID)) + LEN('--// Version: ') + 1, 19)
  DECLARE @Parameters nvarchar(max)

  DECLARE @HostPlatform nvarchar(max)

  DECLARE @QueueID int
  DECLARE @QueueStartTime datetime2

  DECLARE @CurrentDBID int
  DECLARE @CurrentDatabaseName nvarchar(max)

  DECLARE @CurrentDatabase_sp_executesql nvarchar(max)

  DECLARE @CurrentUserAccess nvarchar(max)
  DECLARE @CurrentIsReadOnly bit
  DECLARE @CurrentDatabaseState nvarchar(max)
  DECLARE @CurrentInStandby bit
  DECLARE @CurrentRecoveryModel nvarchar(max)

  DECLARE @CurrentReplicaID uniqueidentifier
  DECLARE @CurrentAvailabilityGroupID uniqueidentifier
  DECLARE @CurrentAvailabilityGroup nvarchar(max)
  DECLARE @CurrentAvailabilityGroupRole nvarchar(max)
  DECLARE @CurrentAvailabilityGroupBackupPreference nvarchar(max)
  DECLARE @CurrentSecondaryRoleAllowConnections nvarchar(max)
  DECLARE @CurrentIsPreferredBackupReplica bit
  DECLARE @CurrentDatabaseMirroringRole nvarchar(max)

  DECLARE @CurrentFGID int
  DECLARE @CurrentFileGroupID int
  DECLARE @CurrentFileGroupName nvarchar(max)
  DECLARE @CurrentFileGroupExists bit

  DECLARE @CurrentOID int
  DECLARE @CurrentSchemaID int
  DECLARE @CurrentSchemaName nvarchar(max)
  DECLARE @CurrentObjectID int
  DECLARE @CurrentObjectName nvarchar(max)
  DECLARE @CurrentObjectType nvarchar(max)
  DECLARE @CurrentObjectExists bit

  DECLARE @CurrentDatabaseContext nvarchar(max)
  DECLARE @CurrentCommand nvarchar(max)
  DECLARE @CurrentCommandOutput int
  DECLARE @CurrentCommandType nvarchar(max)

  DECLARE @Errors TABLE (ID int IDENTITY PRIMARY KEY,
                         [Message] nvarchar(max) NOT NULL,
                         Severity int NOT NULL,
                         [State] int)

  DECLARE @CurrentMessage nvarchar(max)
  DECLARE @CurrentSeverity int
  DECLARE @CurrentState int

  DECLARE @tmpDatabases TABLE (ID int IDENTITY,
                               DatabaseName nvarchar(max),
                               DatabaseType nvarchar(max),
                               AvailabilityGroup bit,
                               [Snapshot] bit,
                               StartPosition int,
                               LastCommandTime datetime2,
                               DatabaseSize bigint,
                               LastGoodCheckDbTime datetime2,
                               [Order] int,
                               Selected bit,
                               Completed bit,
                               PRIMARY KEY(Selected, Completed, [Order], ID))

  DECLARE @tmpAvailabilityGroups TABLE (ID int IDENTITY PRIMARY KEY,
                                        AvailabilityGroupName nvarchar(max),
                                        StartPosition int,
                                        Selected bit)

  DECLARE @tmpDatabasesAvailabilityGroups TABLE (DatabaseName nvarchar(max),
                                                 AvailabilityGroupName nvarchar(max))

  DECLARE @tmpFileGroups TABLE (ID int IDENTITY,
                                FileGroupID int,
                                FileGroupName nvarchar(max),
                                StartPosition int,
                                [Order] int,
                                Selected bit,
                                Completed bit,
                                PRIMARY KEY(Selected, Completed, [Order], ID))

  DECLARE @tmpObjects TABLE (ID int IDENTITY,
                             SchemaID int,
                             SchemaName nvarchar(max),
                             ObjectID int,
                             ObjectName nvarchar(max),
                             ObjectType nvarchar(max),
                             StartPosition int,
                             [Order] int,
                             Selected bit,
                             Completed bit,
                             PRIMARY KEY(Selected, Completed, [Order], ID))

  DECLARE @SelectedDatabases TABLE (DatabaseName nvarchar(max),
                                    DatabaseType nvarchar(max),
                                    AvailabilityGroup nvarchar(max),
                                    StartPosition int,
                                    Selected bit)

  DECLARE @SelectedAvailabilityGroups TABLE (AvailabilityGroupName nvarchar(max),
                                             StartPosition int,
                                             Selected bit)

  DECLARE @SelectedFileGroups TABLE (DatabaseName nvarchar(max),
                                     FileGroupName nvarchar(max),
                                     StartPosition int,
                                     Selected bit)

  DECLARE @SelectedObjects TABLE (DatabaseName nvarchar(max),
                                  SchemaName nvarchar(max),
                                  ObjectName nvarchar(max),
                                  StartPosition int,
                                  Selected bit)

  DECLARE @SelectedCheckCommands TABLE (CheckCommand nvarchar(max))

  DECLARE @Error int = 0
  DECLARE @ReturnCode int = 0

  DECLARE @EmptyLine nvarchar(max) = CHAR(9)

  DECLARE @Version numeric(18,10) = CAST(LEFT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)),CHARINDEX('.',CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))) - 1) + '.' + REPLACE(RIGHT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)), LEN(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))) - CHARINDEX('.',CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)))),'.','') AS numeric(18,10))

  IF @Version >= 14
  BEGIN
    SELECT @HostPlatform = host_platform
    FROM sys.dm_os_host_info
  END
  ELSE
  BEGIN
    SET @HostPlatform = 'Windows'
  END

  DECLARE @AmazonRDS bit = CASE WHEN DB_ID('rdsadmin') IS NOT NULL AND SUSER_SNAME(0x01) = 'rdsa' THEN 1 ELSE 0 END

  ----------------------------------------------------------------------------------------------------
  --// Log initial information                                                                    //--
  ----------------------------------------------------------------------------------------------------

  SET @Parameters = '@Databases = ' + ISNULL('''' + REPLACE(@Databases,'''','''''') + '''','NULL')
  SET @Parameters += ', @CheckCommands = ' + ISNULL('''' + REPLACE(@CheckCommands,'''','''''') + '''','NULL')
  SET @Parameters += ', @PhysicalOnly = ' + ISNULL('''' + REPLACE(@PhysicalOnly,'''','''''') + '''','NULL')
  SET @Parameters += ', @DataPurity = ' + ISNULL('''' + REPLACE(@DataPurity,'''','''''') + '''','NULL')
  SET @Parameters += ', @NoIndex = ' + ISNULL('''' + REPLACE(@NoIndex,'''','''''') + '''','NULL')
  SET @Parameters += ', @ExtendedLogicalChecks = ' + ISNULL('''' + REPLACE(@ExtendedLogicalChecks,'''','''''') + '''','NULL')
  SET @Parameters += ', @NoInformationalMessages = ' + ISNULL('''' + REPLACE(@NoInformationalMessages,'''','''''') + '''','NULL')
  SET @Parameters += ', @TabLock = ' + ISNULL('''' + REPLACE(@TabLock,'''','''''') + '''','NULL')
  SET @Parameters += ', @FileGroups = ' + ISNULL('''' + REPLACE(@FileGroups,'''','''''') + '''','NULL')
  SET @Parameters += ', @Objects = ' + ISNULL('''' + REPLACE(@Objects,'''','''''') + '''','NULL')
  SET @Parameters += ', @MaxDOP = ' + ISNULL(CAST(@MaxDOP AS nvarchar),'NULL')
  SET @Parameters += ', @AvailabilityGroups = ' + ISNULL('''' + REPLACE(@AvailabilityGroups,'''','''''') + '''','NULL')
  SET @Parameters += ', @AvailabilityGroupReplicas = ' + ISNULL('''' + REPLACE(@AvailabilityGroupReplicas,'''','''''') + '''','NULL')
  SET @Parameters += ', @Updateability = ' + ISNULL('''' + REPLACE(@Updateability,'''','''''') + '''','NULL')
  SET @Parameters += ', @TimeLimit = ' + ISNULL(CAST(@TimeLimit AS nvarchar),'NULL')
  SET @Parameters += ', @LockTimeout = ' + ISNULL(CAST(@LockTimeout AS nvarchar),'NULL')
  SET @Parameters += ', @LockMessageSeverity = ' + ISNULL(CAST(@LockMessageSeverity AS nvarchar),'NULL')
  SET @Parameters += ', @StringDelimiter = ' + ISNULL('''' + REPLACE(@StringDelimiter,'''','''''') + '''','NULL')
  SET @Parameters += ', @DatabaseOrder = ' + ISNULL('''' + REPLACE(@DatabaseOrder,'''','''''') + '''','NULL')
  SET @Parameters += ', @DatabasesInParallel = ' + ISNULL('''' + REPLACE(@DatabasesInParallel,'''','''''') + '''','NULL')
  SET @Parameters += ', @LogToTable = ' + ISNULL('''' + REPLACE(@LogToTable,'''','''''') + '''','NULL')
  SET @Parameters += ', @Execute = ' + ISNULL('''' + REPLACE(@Execute,'''','''''') + '''','NULL')

  SET @StartMessage = 'Date and time: ' + CONVERT(nvarchar,@StartTime,120)
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Server: ' + CAST(SERVERPROPERTY('ServerName') AS nvarchar(max))
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Version: ' + CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Edition: ' + CAST(SERVERPROPERTY('Edition') AS nvarchar(max))
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Platform: ' + @HostPlatform
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Procedure: ' + QUOTENAME(DB_NAME(DB_ID())) + '.' + QUOTENAME(@SchemaName) + '.' + QUOTENAME(@ObjectName)
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Parameters: ' + @Parameters
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Version: ' + @VersionTimestamp
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Source: https://ola.hallengren.com'
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  RAISERROR(@EmptyLine,10,1) WITH NOWAIT

  ----------------------------------------------------------------------------------------------------
  --// Check core requirements                                                                    //--
  ----------------------------------------------------------------------------------------------------

  IF NOT (SELECT [compatibility_level] FROM sys.databases WHERE database_id = DB_ID()) >= 90
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT  'The database ' + QUOTENAME(DB_NAME(DB_ID())) + ' has to be in compatibility level 90 or higher.', 16, 1
  END

  IF NOT (SELECT uses_ansi_nulls FROM sys.sql_modules WHERE [object_id] = @@PROCID) = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'ANSI_NULLS has to be set to ON for the stored procedure.', 16, 1
  END

  IF NOT (SELECT uses_quoted_identifier FROM sys.sql_modules WHERE [object_id] = @@PROCID) = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'QUOTED_IDENTIFIER has to be set to ON for the stored procedure.', 16, 1
  END

  IF NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'P' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandExecute')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The stored procedure CommandExecute is missing. Download https://ola.hallengren.com/scripts/CommandExecute.sql.', 16, 1
  END

  IF EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'P' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandExecute' AND OBJECT_DEFINITION(objects.[object_id]) NOT LIKE '%@DatabaseContext%')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The stored procedure CommandExecute needs to be updated. Download https://ola.hallengren.com/scripts/CommandExecute.sql.', 16, 1
  END

  IF @LogToTable = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandLog')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table CommandLog is missing. Download https://ola.hallengren.com/scripts/CommandLog.sql.', 16, 1
  END

  IF @DatabasesInParallel = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'Queue')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table Queue is missing. Download https://ola.hallengren.com/scripts/Queue.sql.', 16, 1
  END

  IF @DatabasesInParallel = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'QueueDatabase')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table QueueDatabase is missing. Download https://ola.hallengren.com/scripts/QueueDatabase.sql.', 16, 1
  END

  IF @@TRANCOUNT <> 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The transaction count is not 0.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Select databases                                                                           //--
  ----------------------------------------------------------------------------------------------------

  SET @Databases = REPLACE(@Databases, CHAR(10), '')
  SET @Databases = REPLACE(@Databases, CHAR(13), '')

  WHILE CHARINDEX(@StringDelimiter + ' ', @Databases) > 0 SET @Databases = REPLACE(@Databases, @StringDelimiter + ' ', @StringDelimiter)
  WHILE CHARINDEX(' ' + @StringDelimiter, @Databases) > 0 SET @Databases = REPLACE(@Databases, ' ' + @StringDelimiter, @StringDelimiter)

  SET @Databases = LTRIM(RTRIM(@Databases));

  WITH Databases1 (StartPosition, EndPosition, DatabaseItem) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, 1), 0), LEN(@Databases) + 1) AS EndPosition,
         SUBSTRING(@Databases, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, 1), 0), LEN(@Databases) + 1) - 1) AS DatabaseItem
  WHERE @Databases IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, EndPosition + 1), 0), LEN(@Databases) + 1) AS EndPosition,
         SUBSTRING(@Databases, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, EndPosition + 1), 0), LEN(@Databases) + 1) - EndPosition - 1) AS DatabaseItem
  FROM Databases1
  WHERE EndPosition < LEN(@Databases) + 1
  ),
  Databases2 (DatabaseItem, StartPosition, Selected) AS
  (
  SELECT CASE WHEN DatabaseItem LIKE '-%' THEN RIGHT(DatabaseItem,LEN(DatabaseItem) - 1) ELSE DatabaseItem END AS DatabaseItem,
         StartPosition,
         CASE WHEN DatabaseItem LIKE '-%' THEN 0 ELSE 1 END AS Selected
  FROM Databases1
  ),
  Databases3 (DatabaseItem, DatabaseType, AvailabilityGroup, StartPosition, Selected) AS
  (
  SELECT CASE WHEN DatabaseItem IN('ALL_DATABASES','SYSTEM_DATABASES','USER_DATABASES','AVAILABILITY_GROUP_DATABASES') THEN '%' ELSE DatabaseItem END AS DatabaseItem,
         CASE WHEN DatabaseItem = 'SYSTEM_DATABASES' THEN 'S' WHEN DatabaseItem = 'USER_DATABASES' THEN 'U' ELSE NULL END AS DatabaseType,
         CASE WHEN DatabaseItem = 'AVAILABILITY_GROUP_DATABASES' THEN 1 ELSE NULL END AvailabilityGroup,
         StartPosition,
         Selected
  FROM Databases2
  ),
  Databases4 (DatabaseName, DatabaseType, AvailabilityGroup, StartPosition, Selected) AS
  (
  SELECT CASE WHEN LEFT(DatabaseItem,1) = '[' AND RIGHT(DatabaseItem,1) = ']' THEN PARSENAME(DatabaseItem,1) ELSE DatabaseItem END AS DatabaseItem,
         DatabaseType,
         AvailabilityGroup,
         StartPosition,
         Selected
  FROM Databases3
  )
  INSERT INTO @SelectedDatabases (DatabaseName, DatabaseType, AvailabilityGroup, StartPosition, Selected)
  SELECT DatabaseName,
         DatabaseType,
         AvailabilityGroup,
         StartPosition,
         Selected
  FROM Databases4
  OPTION (MAXRECURSION 0)

  IF @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
  BEGIN
    INSERT INTO @tmpAvailabilityGroups (AvailabilityGroupName, Selected)
    SELECT name AS AvailabilityGroupName,
           0 AS Selected
    FROM sys.availability_groups

    INSERT INTO @tmpDatabasesAvailabilityGroups (DatabaseName, AvailabilityGroupName)
    SELECT databases.name,
           availability_groups.name
    FROM sys.databases databases
    INNER JOIN sys.availability_replicas availability_replicas ON databases.replica_id = availability_replicas.replica_id
    INNER JOIN sys.availability_groups availability_groups ON availability_replicas.group_id = availability_groups.group_id
  END

  INSERT INTO @tmpDatabases (DatabaseName, DatabaseType, AvailabilityGroup, [Snapshot], [Order], Selected, Completed)
  SELECT [name] AS DatabaseName,
         CASE WHEN name IN('master','msdb','model') OR is_distributor = 1 THEN 'S' ELSE 'U' END AS DatabaseType,
         NULL AS AvailabilityGroup,
         CASE WHEN source_database_id IS NOT NULL THEN 1 ELSE 0 END AS [Snapshot],
         0 AS [Order],
         0 AS Selected,
         0 AS Completed
  FROM sys.databases
  ORDER BY [name] ASC

  UPDATE tmpDatabases
  SET AvailabilityGroup = CASE WHEN EXISTS (SELECT * FROM @tmpDatabasesAvailabilityGroups WHERE DatabaseName = tmpDatabases.DatabaseName) THEN 1 ELSE 0 END
  FROM @tmpDatabases tmpDatabases

  UPDATE tmpDatabases
  SET tmpDatabases.Selected = SelectedDatabases.Selected
  FROM @tmpDatabases tmpDatabases
  INNER JOIN @SelectedDatabases SelectedDatabases
  ON tmpDatabases.DatabaseName LIKE REPLACE(SelectedDatabases.DatabaseName,'_','[_]')
  AND (tmpDatabases.DatabaseType = SelectedDatabases.DatabaseType OR SelectedDatabases.DatabaseType IS NULL)
  AND (tmpDatabases.AvailabilityGroup = SelectedDatabases.AvailabilityGroup OR SelectedDatabases.AvailabilityGroup IS NULL)
  AND NOT ((tmpDatabases.DatabaseName = 'tempdb' OR tmpDatabases.[Snapshot] = 1) AND tmpDatabases.DatabaseName <> SelectedDatabases.DatabaseName)
  WHERE SelectedDatabases.Selected = 1

  UPDATE tmpDatabases
  SET tmpDatabases.Selected = SelectedDatabases.Selected
  FROM @tmpDatabases tmpDatabases
  INNER JOIN @SelectedDatabases SelectedDatabases
  ON tmpDatabases.DatabaseName LIKE REPLACE(SelectedDatabases.DatabaseName,'_','[_]')
  AND (tmpDatabases.DatabaseType = SelectedDatabases.DatabaseType OR SelectedDatabases.DatabaseType IS NULL)
  AND (tmpDatabases.AvailabilityGroup = SelectedDatabases.AvailabilityGroup OR SelectedDatabases.AvailabilityGroup IS NULL)
  AND NOT ((tmpDatabases.DatabaseName = 'tempdb' OR tmpDatabases.[Snapshot] = 1) AND tmpDatabases.DatabaseName <> SelectedDatabases.DatabaseName)
  WHERE SelectedDatabases.Selected = 0

  UPDATE tmpDatabases
  SET tmpDatabases.StartPosition = SelectedDatabases2.StartPosition
  FROM @tmpDatabases tmpDatabases
  INNER JOIN (SELECT tmpDatabases.DatabaseName, MIN(SelectedDatabases.StartPosition) AS StartPosition
              FROM @tmpDatabases tmpDatabases
              INNER JOIN @SelectedDatabases SelectedDatabases
              ON tmpDatabases.DatabaseName LIKE REPLACE(SelectedDatabases.DatabaseName,'_','[_]')
              AND (tmpDatabases.DatabaseType = SelectedDatabases.DatabaseType OR SelectedDatabases.DatabaseType IS NULL)
              AND (tmpDatabases.AvailabilityGroup = SelectedDatabases.AvailabilityGroup OR SelectedDatabases.AvailabilityGroup IS NULL)
              WHERE SelectedDatabases.Selected = 1
              GROUP BY tmpDatabases.DatabaseName) SelectedDatabases2
  ON tmpDatabases.DatabaseName = SelectedDatabases2.DatabaseName

  IF @Databases IS NOT NULL AND (NOT EXISTS(SELECT * FROM @SelectedDatabases) OR EXISTS(SELECT * FROM @SelectedDatabases WHERE DatabaseName IS NULL OR DATALENGTH(DatabaseName) = 0))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Databases is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Select availability groups                                                                 //--
  ----------------------------------------------------------------------------------------------------

  IF @AvailabilityGroups IS NOT NULL AND @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
  BEGIN

    SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, CHAR(10), '')
    SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, CHAR(13), '')

    WHILE CHARINDEX(@StringDelimiter + ' ', @AvailabilityGroups) > 0 SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, @StringDelimiter + ' ', @StringDelimiter)
    WHILE CHARINDEX(' ' + @StringDelimiter, @AvailabilityGroups) > 0 SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, ' ' + @StringDelimiter, @StringDelimiter)

    SET @AvailabilityGroups = LTRIM(RTRIM(@AvailabilityGroups));

    WITH AvailabilityGroups1 (StartPosition, EndPosition, AvailabilityGroupItem) AS
    (
    SELECT 1 AS StartPosition,
           ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, 1), 0), LEN(@AvailabilityGroups) + 1) AS EndPosition,
           SUBSTRING(@AvailabilityGroups, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, 1), 0), LEN(@AvailabilityGroups) + 1) - 1) AS AvailabilityGroupItem
    WHERE @AvailabilityGroups IS NOT NULL
    UNION ALL
    SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
           ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, EndPosition + 1), 0), LEN(@AvailabilityGroups) + 1) AS EndPosition,
           SUBSTRING(@AvailabilityGroups, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, EndPosition + 1), 0), LEN(@AvailabilityGroups) + 1) - EndPosition - 1) AS AvailabilityGroupItem
    FROM AvailabilityGroups1
    WHERE EndPosition < LEN(@AvailabilityGroups) + 1
    ),
    AvailabilityGroups2 (AvailabilityGroupItem, StartPosition, Selected) AS
    (
    SELECT CASE WHEN AvailabilityGroupItem LIKE '-%' THEN RIGHT(AvailabilityGroupItem,LEN(AvailabilityGroupItem) - 1) ELSE AvailabilityGroupItem END AS AvailabilityGroupItem,
           StartPosition,
           CASE WHEN AvailabilityGroupItem LIKE '-%' THEN 0 ELSE 1 END AS Selected
    FROM AvailabilityGroups1
    ),
    AvailabilityGroups3 (AvailabilityGroupItem, StartPosition, Selected) AS
    (
    SELECT CASE WHEN AvailabilityGroupItem = 'ALL_AVAILABILITY_GROUPS' THEN '%' ELSE AvailabilityGroupItem END AS AvailabilityGroupItem,
           StartPosition,
           Selected
    FROM AvailabilityGroups2
    ),
    AvailabilityGroups4 (AvailabilityGroupName, StartPosition, Selected) AS
    (
    SELECT CASE WHEN LEFT(AvailabilityGroupItem,1) = '[' AND RIGHT(AvailabilityGroupItem,1) = ']' THEN PARSENAME(AvailabilityGroupItem,1) ELSE AvailabilityGroupItem END AS AvailabilityGroupItem,
           StartPosition,
           Selected
    FROM AvailabilityGroups3
    )
    INSERT INTO @SelectedAvailabilityGroups (AvailabilityGroupName, StartPosition, Selected)
    SELECT AvailabilityGroupName, StartPosition, Selected
    FROM AvailabilityGroups4
    OPTION (MAXRECURSION 0)

    UPDATE tmpAvailabilityGroups
    SET tmpAvailabilityGroups.Selected = SelectedAvailabilityGroups.Selected
    FROM @tmpAvailabilityGroups tmpAvailabilityGroups
    INNER JOIN @SelectedAvailabilityGroups SelectedAvailabilityGroups
    ON tmpAvailabilityGroups.AvailabilityGroupName LIKE REPLACE(SelectedAvailabilityGroups.AvailabilityGroupName,'_','[_]')
    WHERE SelectedAvailabilityGroups.Selected = 1

    UPDATE tmpAvailabilityGroups
    SET tmpAvailabilityGroups.Selected = SelectedAvailabilityGroups.Selected
    FROM @tmpAvailabilityGroups tmpAvailabilityGroups
    INNER JOIN @SelectedAvailabilityGroups SelectedAvailabilityGroups
    ON tmpAvailabilityGroups.AvailabilityGroupName LIKE REPLACE(SelectedAvailabilityGroups.AvailabilityGroupName,'_','[_]')
    WHERE SelectedAvailabilityGroups.Selected = 0

    UPDATE tmpAvailabilityGroups
    SET tmpAvailabilityGroups.StartPosition = SelectedAvailabilityGroups2.StartPosition
    FROM @tmpAvailabilityGroups tmpAvailabilityGroups
    INNER JOIN (SELECT tmpAvailabilityGroups.AvailabilityGroupName, MIN(SelectedAvailabilityGroups.StartPosition) AS StartPosition
                FROM @tmpAvailabilityGroups tmpAvailabilityGroups
                INNER JOIN @SelectedAvailabilityGroups SelectedAvailabilityGroups
                ON tmpAvailabilityGroups.AvailabilityGroupName LIKE REPLACE(SelectedAvailabilityGroups.AvailabilityGroupName,'_','[_]')
                WHERE SelectedAvailabilityGroups.Selected = 1
                GROUP BY tmpAvailabilityGroups.AvailabilityGroupName) SelectedAvailabilityGroups2
    ON tmpAvailabilityGroups.AvailabilityGroupName = SelectedAvailabilityGroups2.AvailabilityGroupName

    UPDATE tmpDatabases
    SET tmpDatabases.StartPosition = tmpAvailabilityGroups.StartPosition,
        tmpDatabases.Selected = 1
    FROM @tmpDatabases tmpDatabases
    INNER JOIN @tmpDatabasesAvailabilityGroups tmpDatabasesAvailabilityGroups ON tmpDatabases.DatabaseName = tmpDatabasesAvailabilityGroups.DatabaseName
    INNER JOIN @tmpAvailabilityGroups tmpAvailabilityGroups ON tmpDatabasesAvailabilityGroups.AvailabilityGroupName = tmpAvailabilityGroups.AvailabilityGroupName
    WHERE tmpAvailabilityGroups.Selected = 1

  END

  IF @AvailabilityGroups IS NOT NULL AND (NOT EXISTS(SELECT * FROM @SelectedAvailabilityGroups) OR EXISTS(SELECT * FROM @SelectedAvailabilityGroups WHERE AvailabilityGroupName IS NULL OR AvailabilityGroupName = '') OR @Version < 11 OR SERVERPROPERTY('IsHadrEnabled') = 0)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroups is not supported.', 16, 1
  END

  IF (@Databases IS NULL AND @AvailabilityGroups IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'You need to specify one of the parameters @Databases and @AvailabilityGroups.', 16, 2
  END

  IF (@Databases IS NOT NULL AND @AvailabilityGroups IS NOT NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'You can only specify one of the parameters @Databases and @AvailabilityGroups.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------
  --// Select filegroups                                                                          //--
  ----------------------------------------------------------------------------------------------------

  SET @FileGroups = REPLACE(@FileGroups, CHAR(10), '')
  SET @FileGroups = REPLACE(@FileGroups, CHAR(13), '')

  WHILE CHARINDEX(@StringDelimiter + ' ', @FileGroups) > 0 SET @FileGroups = REPLACE(@FileGroups, @StringDelimiter + ' ', @StringDelimiter)
  WHILE CHARINDEX(' ' + @StringDelimiter, @FileGroups) > 0 SET @FileGroups = REPLACE(@FileGroups, ' ' + @StringDelimiter, @StringDelimiter)

  SET @FileGroups = LTRIM(RTRIM(@FileGroups));

  WITH FileGroups1 (StartPosition, EndPosition, FileGroupItem) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FileGroups, 1), 0), LEN(@FileGroups) + 1) AS EndPosition,
         SUBSTRING(@FileGroups, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FileGroups, 1), 0), LEN(@FileGroups) + 1) - 1) AS FileGroupItem
  WHERE @FileGroups IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FileGroups, EndPosition + 1), 0), LEN(@FileGroups) + 1) AS EndPosition,
         SUBSTRING(@FileGroups, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FileGroups, EndPosition + 1), 0), LEN(@FileGroups) + 1) - EndPosition - 1) AS FileGroupItem
  FROM FileGroups1
  WHERE EndPosition < LEN(@FileGroups) + 1
  ),
  FileGroups2 (FileGroupItem, StartPosition, Selected) AS
  (
  SELECT CASE WHEN FileGroupItem LIKE '-%' THEN RIGHT(FileGroupItem,LEN(FileGroupItem) - 1) ELSE FileGroupItem END AS FileGroupItem,
         StartPosition,
         CASE WHEN FileGroupItem LIKE '-%' THEN 0 ELSE 1 END AS Selected
  FROM FileGroups1
  ),
  FileGroups3 (FileGroupItem, StartPosition, Selected) AS
  (
  SELECT CASE WHEN FileGroupItem = 'ALL_FILEGROUPS' THEN '%.%' ELSE FileGroupItem END AS FileGroupItem,
         StartPosition,
         Selected
  FROM FileGroups2
  ),
  FileGroups4 (DatabaseName, FileGroupName, StartPosition, Selected) AS
  (
  SELECT CASE WHEN PARSENAME(FileGroupItem,4) IS NULL AND PARSENAME(FileGroupItem,3) IS NULL THEN PARSENAME(FileGroupItem,2) ELSE NULL END AS DatabaseName,
         CASE WHEN PARSENAME(FileGroupItem,4) IS NULL AND PARSENAME(FileGroupItem,3) IS NULL THEN PARSENAME(FileGroupItem,1) ELSE NULL END AS FileGroupName,
         StartPosition,
         Selected
  FROM FileGroups3
  )
  INSERT INTO @SelectedFileGroups (DatabaseName, FileGroupName, StartPosition, Selected)
  SELECT DatabaseName, FileGroupName, StartPosition, Selected
  FROM FileGroups4
  OPTION (MAXRECURSION 0)

  ----------------------------------------------------------------------------------------------------
  --// Select objects                                                                             //--
  ----------------------------------------------------------------------------------------------------

  SET @Objects = REPLACE(@Objects, CHAR(10), '')
  SET @Objects = REPLACE(@Objects, CHAR(13), '')

  WHILE CHARINDEX(@StringDelimiter + ' ', @Objects) > 0 SET @Objects = REPLACE(@Objects, @StringDelimiter + ' ', @StringDelimiter)
  WHILE CHARINDEX(' ' + @StringDelimiter, @Objects) > 0 SET @Objects = REPLACE(@Objects, ' ' + @StringDelimiter, @StringDelimiter)

  SET @Objects = LTRIM(RTRIM(@Objects));

  WITH Objects1 (StartPosition, EndPosition, ObjectItem) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Objects, 1), 0), LEN(@Objects) + 1) AS EndPosition,
         SUBSTRING(@Objects, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Objects, 1), 0), LEN(@Objects) + 1) - 1) AS ObjectItem
  WHERE @Objects IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Objects, EndPosition + 1), 0), LEN(@Objects) + 1) AS EndPosition,
         SUBSTRING(@Objects, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Objects, EndPosition + 1), 0), LEN(@Objects) + 1) - EndPosition - 1) AS ObjectItem
  FROM Objects1
  WHERE EndPosition < LEN(@Objects) + 1
  ),
  Objects2 (ObjectItem, StartPosition, Selected) AS
  (
  SELECT CASE WHEN ObjectItem LIKE '-%' THEN RIGHT(ObjectItem,LEN(ObjectItem) - 1) ELSE ObjectItem END AS ObjectItem,
          StartPosition,
         CASE WHEN ObjectItem LIKE '-%' THEN 0 ELSE 1 END AS Selected
  FROM Objects1
  ),
  Objects3 (ObjectItem, StartPosition, Selected) AS
  (
  SELECT CASE WHEN ObjectItem = 'ALL_OBJECTS' THEN '%.%.%' ELSE ObjectItem END AS ObjectItem,
         StartPosition,
         Selected
  FROM Objects2
  ),
  Objects4 (DatabaseName, SchemaName, ObjectName, StartPosition, Selected) AS
  (
  SELECT CASE WHEN PARSENAME(ObjectItem,4) IS NULL THEN PARSENAME(ObjectItem,3) ELSE NULL END AS DatabaseName,
         CASE WHEN PARSENAME(ObjectItem,4) IS NULL THEN PARSENAME(ObjectItem,2) ELSE NULL END AS SchemaName,
         CASE WHEN PARSENAME(ObjectItem,4) IS NULL THEN PARSENAME(ObjectItem,1) ELSE NULL END AS ObjectName,
         StartPosition,
         Selected
  FROM Objects3
  )
  INSERT INTO @SelectedObjects (DatabaseName, SchemaName, ObjectName, StartPosition, Selected)
  SELECT DatabaseName, SchemaName, ObjectName, StartPosition, Selected
  FROM Objects4
  OPTION (MAXRECURSION 0)

  ----------------------------------------------------------------------------------------------------
  --// Select check commands                                                                      //--
  ----------------------------------------------------------------------------------------------------

  SET @CheckCommands = REPLACE(@CheckCommands, @StringDelimiter + ' ', @StringDelimiter);

  WITH CheckCommands (StartPosition, EndPosition, CheckCommand) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @CheckCommands, 1), 0), LEN(@CheckCommands) + 1) AS EndPosition,
         SUBSTRING(@CheckCommands, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @CheckCommands, 1), 0), LEN(@CheckCommands) + 1) - 1) AS CheckCommand
  WHERE @CheckCommands IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @CheckCommands, EndPosition + 1), 0), LEN(@CheckCommands) + 1) AS EndPosition,
         SUBSTRING(@CheckCommands, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @CheckCommands, EndPosition + 1), 0), LEN(@CheckCommands) + 1) - EndPosition - 1) AS CheckCommand
  FROM CheckCommands
  WHERE EndPosition < LEN(@CheckCommands) + 1
  )
  INSERT INTO @SelectedCheckCommands (CheckCommand)
  SELECT CheckCommand
  FROM CheckCommands
  OPTION (MAXRECURSION 0)

  ----------------------------------------------------------------------------------------------------
  --// Check input parameters                                                                     //--
  ----------------------------------------------------------------------------------------------------

  IF EXISTS (SELECT * FROM @SelectedCheckCommands WHERE CheckCommand NOT IN('CHECKDB','CHECKFILEGROUP','CHECKALLOC','CHECKTABLE','CHECKCATALOG'))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CheckCommands is not supported.', 16, 1
  END

  IF EXISTS (SELECT * FROM @SelectedCheckCommands GROUP BY CheckCommand HAVING COUNT(*) > 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CheckCommands is not supported.', 16, 2
  END

  IF NOT EXISTS (SELECT * FROM @SelectedCheckCommands)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CheckCommands is not supported.' , 16, 3
  END

  IF EXISTS (SELECT * FROM @SelectedCheckCommands WHERE CheckCommand IN('CHECKDB')) AND EXISTS (SELECT CheckCommand FROM @SelectedCheckCommands WHERE CheckCommand IN('CHECKFILEGROUP','CHECKALLOC','CHECKTABLE','CHECKCATALOG'))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CheckCommands is not supported.', 16, 4
  END

  IF EXISTS (SELECT * FROM @SelectedCheckCommands WHERE CheckCommand IN('CHECKFILEGROUP')) AND EXISTS (SELECT CheckCommand FROM @SelectedCheckCommands WHERE CheckCommand IN('CHECKALLOC','CHECKTABLE'))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @CheckCommands is not supported.', 16, 5
  END

  ----------------------------------------------------------------------------------------------------

  IF @PhysicalOnly NOT IN ('Y','N') OR @PhysicalOnly IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @PhysicalOnly is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @DataPurity NOT IN ('Y','N') OR @DataPurity IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DataPurity is not supported.', 16, 1
  END

  IF @PhysicalOnly = 'Y' AND @DataPurity = 'Y'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameters @PhysicalOnly and @DataPurity cannot be used together.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @NoIndex NOT IN ('Y','N') OR @NoIndex IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NoIndex is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @ExtendedLogicalChecks NOT IN ('Y','N') OR @ExtendedLogicalChecks IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ExtendedLogicalChecks is not supported.', 16, 1
  END

  IF @PhysicalOnly = 'Y' AND @ExtendedLogicalChecks = 'Y'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameters @PhysicalOnly and @ExtendedLogicalChecks cannot be used together.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @NoInformationalMessages NOT IN ('Y','N') OR @NoInformationalMessages IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @NoInformationalMessages is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @TabLock NOT IN ('Y','N') OR @TabLock IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @TabLock is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS(SELECT * FROM @SelectedFileGroups WHERE DatabaseName IS NULL OR FileGroupName IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileGroups is not supported.', 16, 1
  END

  IF @FileGroups IS NOT NULL AND NOT EXISTS(SELECT * FROM @SelectedFileGroups)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileGroups is not supported.', 16, 2
  END

  IF @FileGroups IS NOT NULL AND NOT EXISTS (SELECT * FROM @SelectedCheckCommands WHERE CheckCommand = 'CHECKFILEGROUP')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FileGroups is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS(SELECT * FROM @SelectedObjects WHERE DatabaseName IS NULL OR SchemaName IS NULL OR ObjectName IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Objects is not supported.', 16, 1
  END

  IF (@Objects IS NOT NULL AND NOT EXISTS(SELECT * FROM @SelectedObjects))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Objects is not supported.', 16, 2
  END

  IF (@Objects IS NOT NULL AND NOT EXISTS (SELECT * FROM @SelectedCheckCommands WHERE CheckCommand = 'CHECKTABLE'))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Objects is not supported.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF @MaxDOP < 0 OR @MaxDOP > 64
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxDOP is not supported.', 16, 1
  END

  IF @MaxDOP IS NOT NULL AND NOT (@Version >= 12.050000 OR SERVERPROPERTY('EngineEdition') IN (5, 8))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxDOP is not supported. MAXDOP is not available in this version of SQL Server.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @AvailabilityGroupReplicas NOT IN('ALL','PRIMARY','SECONDARY','PREFERRED_BACKUP_REPLICA') OR @AvailabilityGroupReplicas IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroupReplicas is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Updateability NOT IN('READ_ONLY','READ_WRITE','ALL') OR @Updateability IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Updateability is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @TimeLimit < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @TimeLimit is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @LockTimeout < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LockTimeout is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @LockMessageSeverity NOT IN(10, 16)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LockMessageSeverity is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @StringDelimiter IS NULL OR LEN(@StringDelimiter) > 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @StringDelimiter is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @DatabaseOrder NOT IN('DATABASE_NAME_ASC','DATABASE_NAME_DESC','DATABASE_SIZE_ASC','DATABASE_SIZE_DESC','DATABASE_LAST_GOOD_CHECK_ASC','DATABASE_LAST_GOOD_CHECK_DESC','REPLICA_LAST_GOOD_CHECK_ASC','REPLICA_LAST_GOOD_CHECK_DESC')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported.', 16, 1
  END

  IF @DatabaseOrder IN('DATABASE_LAST_GOOD_CHECK_ASC','DATABASE_LAST_GOOD_CHECK_DESC') AND NOT ((@Version >= 12.06024 AND @Version < 13) OR (@Version >= 13.05026 AND @Version < 14) OR @Version >= 14.0302916 OR SERVERPROPERTY('EngineEdition') = 8)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported. DATABASEPROPERTYEX(''DatabaseName'', ''LastGoodCheckDbTime'') is not available in this version of SQL Server.', 16, 2
  END

  IF @DatabaseOrder IN('REPLICA_LAST_GOOD_CHECK_ASC','REPLICA_LAST_GOOD_CHECK_DESC') AND @LogToTable = 'N'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported. You need to provide the parameter @LogToTable = ''Y''.', 16, 3
  END

  IF @DatabaseOrder IN('DATABASE_LAST_GOOD_CHECK_ASC','DATABASE_LAST_GOOD_CHECK_DESC','REPLICA_LAST_GOOD_CHECK_ASC','REPLICA_LAST_GOOD_CHECK_DESC') AND @CheckCommands <> 'CHECKDB'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported. You need to provide the parameter @CheckCommands = ''CHECKDB''.', 16, 4
  END

  IF @DatabaseOrder IS NOT NULL AND SERVERPROPERTY('EngineEdition') = 5
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported. This parameter is not supported in Azure SQL Database.', 16, 5
  END

  ----------------------------------------------------------------------------------------------------

  IF @DatabasesInParallel NOT IN('Y','N') OR @DatabasesInParallel IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabasesInParallel is not supported.', 16, 1
  END

  IF @DatabasesInParallel = 'Y' AND SERVERPROPERTY('EngineEdition') = 5
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabasesInParallel is not supported. This parameter is not supported in Azure SQL Database.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @LogToTable NOT IN('Y','N') OR @LogToTable IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LogToTable is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Execute NOT IN('Y','N') OR @Execute IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Execute is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS(SELECT * FROM @Errors)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The documentation is available at https://ola.hallengren.com/sql-server-integrity-check.html.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Check that selected databases and availability groups exist                                //--
  ----------------------------------------------------------------------------------------------------

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @SelectedDatabases
  WHERE DatabaseName NOT LIKE '%[%]%'
  AND DatabaseName NOT IN (SELECT DatabaseName FROM @tmpDatabases)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following databases in the @Databases parameter do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @SelectedFileGroups
  WHERE DatabaseName NOT LIKE '%[%]%'
  AND DatabaseName NOT IN (SELECT DatabaseName FROM @tmpDatabases)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following databases in the @FileGroups parameter do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @SelectedObjects
  WHERE DatabaseName NOT LIKE '%[%]%'
  AND DatabaseName NOT IN (SELECT DatabaseName FROM @tmpDatabases)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following databases in the @Objects parameter do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(AvailabilityGroupName) + ', '
  FROM @SelectedAvailabilityGroups
  WHERE AvailabilityGroupName NOT LIKE '%[%]%'
  AND AvailabilityGroupName NOT IN (SELECT AvailabilityGroupName FROM @tmpAvailabilityGroups)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following availability groups do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @SelectedFileGroups
  WHERE DatabaseName NOT LIKE '%[%]%'
  AND DatabaseName IN (SELECT DatabaseName FROM @tmpDatabases)
  AND DatabaseName NOT IN (SELECT DatabaseName FROM @tmpDatabases WHERE Selected = 1)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following databases have been selected in the @FileGroups parameter, but not in the @Databases or @AvailabilityGroups parameters: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @SelectedObjects
  WHERE DatabaseName NOT LIKE '%[%]%'
  AND DatabaseName IN (SELECT DatabaseName FROM @tmpDatabases)
  AND DatabaseName NOT IN (SELECT DatabaseName FROM @tmpDatabases WHERE Selected = 1)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following databases have been selected in the @Objects parameter, but not in the @Databases or @AvailabilityGroups parameters: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Check @@SERVERNAME                                                                         //--
  ----------------------------------------------------------------------------------------------------

  IF UPPER(@@SERVERNAME) <> UPPER(CAST(SERVERPROPERTY('ServerName') AS nvarchar(max))) AND SERVERPROPERTY('IsHadrEnabled') = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The @@SERVERNAME does not match SERVERPROPERTY(''ServerName''). See ' + CASE WHEN SERVERPROPERTY('IsClustered') = 0 THEN 'https://docs.microsoft.com/en-us/sql/database-engine/install-windows/rename-a-computer-that-hosts-a-stand-alone-instance-of-sql-server' WHEN SERVERPROPERTY('IsClustered') = 1 THEN 'https://docs.microsoft.com/en-us/sql/sql-server/failover-clusters/install/rename-a-sql-server-failover-cluster-instance' END + '.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Raise errors                                                                               //--
  ----------------------------------------------------------------------------------------------------

  DECLARE ErrorCursor CURSOR FAST_FORWARD FOR SELECT [Message], Severity, [State] FROM @Errors ORDER BY [ID] ASC

  OPEN ErrorCursor

  FETCH ErrorCursor INTO @CurrentMessage, @CurrentSeverity, @CurrentState

  WHILE @@FETCH_STATUS = 0
  BEGIN
    RAISERROR('%s', @CurrentSeverity, @CurrentState, @CurrentMessage) WITH NOWAIT
    RAISERROR(@EmptyLine, 10, 1) WITH NOWAIT

    FETCH NEXT FROM ErrorCursor INTO @CurrentMessage, @CurrentSeverity, @CurrentState
  END

  CLOSE ErrorCursor

  DEALLOCATE ErrorCursor

  IF EXISTS (SELECT * FROM @Errors WHERE Severity >= 16)
  BEGIN
    SET @ReturnCode = 50000
    GOTO Logging
  END

  ----------------------------------------------------------------------------------------------------
  --// Update database order                                                                      //--
  ----------------------------------------------------------------------------------------------------

  IF @DatabaseOrder IN('DATABASE_SIZE_ASC','DATABASE_SIZE_DESC')
  BEGIN
    UPDATE tmpDatabases
    SET DatabaseSize = (SELECT SUM(CAST(size AS bigint)) FROM sys.master_files WHERE [type] = 0 AND database_id = DB_ID(tmpDatabases.DatabaseName))
    FROM @tmpDatabases tmpDatabases
  END

  IF @DatabaseOrder IN('DATABASE_LAST_GOOD_CHECK_ASC','DATABASE_LAST_GOOD_CHECK_DESC')
  BEGIN
    UPDATE tmpDatabases
    SET LastGoodCheckDbTime = NULLIF(CAST(DATABASEPROPERTYEX (DatabaseName,'LastGoodCheckDbTime') AS datetime2),'1900-01-01 00:00:00.000')
    FROM @tmpDatabases tmpDatabases
  END

  IF @DatabaseOrder IN('REPLICA_LAST_GOOD_CHECK_ASC','REPLICA_LAST_GOOD_CHECK_DESC')
  BEGIN
    UPDATE tmpDatabases
    SET LastCommandTime = MaxStartTime
    FROM @tmpDatabases tmpDatabases
    INNER JOIN (SELECT DatabaseName, MAX(StartTime) AS MaxStartTime
                FROM dbo.CommandLog
                WHERE CommandType = 'DBCC_CHECKDB'
                AND ErrorNumber = 0
                GROUP BY DatabaseName) CommandLog
    ON tmpDatabases.DatabaseName = CommandLog.DatabaseName COLLATE DATABASE_DEFAULT
  END

  IF @DatabaseOrder IS NULL
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY StartPosition ASC, DatabaseName ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_NAME_ASC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseName ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_NAME_DESC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseName DESC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_SIZE_ASC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseSize ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_SIZE_DESC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseSize DESC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_LAST_GOOD_CHECK_ASC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY LastGoodCheckDbTime ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_LAST_GOOD_CHECK_DESC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY LastGoodCheckDbTime DESC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'REPLICA_LAST_GOOD_CHECK_ASC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY LastCommandTime ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'REPLICA_LAST_GOOD_CHECK_DESC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY LastCommandTime DESC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END

  ----------------------------------------------------------------------------------------------------
  --// Update the queue                                                                           //--
  ----------------------------------------------------------------------------------------------------

  IF @DatabasesInParallel = 'Y'
  BEGIN

    BEGIN TRY

      SELECT @QueueID = QueueID
      FROM dbo.[Queue]
      WHERE SchemaName = @SchemaName
      AND ObjectName = @ObjectName
      AND [Parameters] = @Parameters

      IF @QueueID IS NULL
      BEGIN
        BEGIN TRANSACTION

        SELECT @QueueID = QueueID
        FROM dbo.[Queue] WITH (UPDLOCK, HOLDLOCK)
        WHERE SchemaName = @SchemaName
        AND ObjectName = @ObjectName
        AND [Parameters] = @Parameters

        IF @QueueID IS NULL
        BEGIN
          INSERT INTO dbo.[Queue] (SchemaName, ObjectName, [Parameters])
          SELECT @SchemaName, @ObjectName, @Parameters

          SET @QueueID = SCOPE_IDENTITY()
        END

        COMMIT TRANSACTION
      END

      BEGIN TRANSACTION

      UPDATE [Queue]
      SET QueueStartTime = SYSDATETIME(),
          SessionID = @@SPID,
          RequestID = (SELECT request_id FROM sys.dm_exec_requests WHERE session_id = @@SPID),
          RequestStartTime = (SELECT start_time FROM sys.dm_exec_requests WHERE session_id = @@SPID)
      FROM dbo.[Queue] [Queue]
      WHERE QueueID = @QueueID
      AND NOT EXISTS (SELECT *
                      FROM sys.dm_exec_requests
                      WHERE session_id = [Queue].SessionID
                      AND request_id = [Queue].RequestID
                      AND start_time = [Queue].RequestStartTime)
      AND NOT EXISTS (SELECT *
                      FROM dbo.QueueDatabase QueueDatabase
                      INNER JOIN sys.dm_exec_requests ON QueueDatabase.SessionID = session_id AND QueueDatabase.RequestID = request_id AND QueueDatabase.RequestStartTime = start_time
                      WHERE QueueDatabase.QueueID = @QueueID)

      IF @@ROWCOUNT = 1
      BEGIN
        INSERT INTO dbo.QueueDatabase (QueueID, DatabaseName)
        SELECT @QueueID AS QueueID,
               DatabaseName
        FROM @tmpDatabases tmpDatabases
        WHERE Selected = 1
        AND NOT EXISTS (SELECT * FROM dbo.QueueDatabase WHERE DatabaseName = tmpDatabases.DatabaseName AND QueueID = @QueueID)

        DELETE QueueDatabase
        FROM dbo.QueueDatabase QueueDatabase
        WHERE QueueID = @QueueID
        AND NOT EXISTS (SELECT * FROM @tmpDatabases tmpDatabases WHERE DatabaseName = QueueDatabase.DatabaseName AND Selected = 1)

        UPDATE QueueDatabase
        SET DatabaseOrder = tmpDatabases.[Order]
        FROM dbo.QueueDatabase QueueDatabase
        INNER JOIN @tmpDatabases tmpDatabases ON QueueDatabase.DatabaseName = tmpDatabases.DatabaseName
        WHERE QueueID = @QueueID
      END

      COMMIT TRANSACTION

      SELECT @QueueStartTime = QueueStartTime
      FROM dbo.[Queue]
      WHERE QueueID = @QueueID

    END TRY

    BEGIN CATCH
      IF XACT_STATE() <> 0
      BEGIN
        ROLLBACK TRANSACTION
      END
      SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'')
      RAISERROR('%s',16,1,@ErrorMessage) WITH NOWAIT
      RAISERROR(@EmptyLine,10,1) WITH NOWAIT
      SET @ReturnCode = ERROR_NUMBER()
      GOTO Logging
    END CATCH

  END

  ----------------------------------------------------------------------------------------------------
  --// Execute commands                                                                           //--
  ----------------------------------------------------------------------------------------------------

  WHILE (1 = 1)
  BEGIN

    IF @DatabasesInParallel = 'Y'
    BEGIN
      UPDATE QueueDatabase
      SET DatabaseStartTime = NULL,
          SessionID = NULL,
          RequestID = NULL,
          RequestStartTime = NULL
      FROM dbo.QueueDatabase QueueDatabase
      WHERE QueueID = @QueueID
      AND DatabaseStartTime IS NOT NULL
      AND DatabaseEndTime IS NULL
      AND NOT EXISTS (SELECT * FROM sys.dm_exec_requests WHERE session_id = QueueDatabase.SessionID AND request_id = QueueDatabase.RequestID AND start_time = QueueDatabase.RequestStartTime)

      UPDATE QueueDatabase
      SET DatabaseStartTime = SYSDATETIME(),
          DatabaseEndTime = NULL,
          SessionID = @@SPID,
          RequestID = (SELECT request_id FROM sys.dm_exec_requests WHERE session_id = @@SPID),
          RequestStartTime = (SELECT start_time FROM sys.dm_exec_requests WHERE session_id = @@SPID),
          @CurrentDatabaseName = DatabaseName
      FROM (SELECT TOP 1 DatabaseStartTime,
                         DatabaseEndTime,
                         SessionID,
                         RequestID,
                         RequestStartTime,
                         DatabaseName
            FROM dbo.QueueDatabase
            WHERE QueueID = @QueueID
            AND (DatabaseStartTime < @QueueStartTime OR DatabaseStartTime IS NULL)
            AND NOT (DatabaseStartTime IS NOT NULL AND DatabaseEndTime IS NULL)
            ORDER BY DatabaseOrder ASC
            ) QueueDatabase
    END
    ELSE
    BEGIN
      SELECT TOP 1 @CurrentDBID = ID,
                   @CurrentDatabaseName = DatabaseName
      FROM @tmpDatabases
      WHERE Selected = 1
      AND Completed = 0
      ORDER BY [Order] ASC
    END

    IF @@ROWCOUNT = 0
    BEGIN
     BREAK
    END

    SET @CurrentDatabase_sp_executesql = QUOTENAME(@CurrentDatabaseName) + '.sys.sp_executesql'

    BEGIN
      SET @DatabaseMessage = 'Date and time: ' + CONVERT(nvarchar,SYSDATETIME(),120)
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Database: ' + QUOTENAME(@CurrentDatabaseName)
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    SELECT @CurrentUserAccess = user_access_desc,
           @CurrentIsReadOnly = is_read_only,
           @CurrentDatabaseState = state_desc,
           @CurrentInStandby = is_in_standby,
           @CurrentRecoveryModel = recovery_model_desc
    FROM sys.databases
    WHERE [name] = @CurrentDatabaseName

    BEGIN
      SET @DatabaseMessage = 'State: ' + @CurrentDatabaseState
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Standby: ' + CASE WHEN @CurrentInStandby = 1 THEN 'Yes' ELSE 'No' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Updateability: ' + CASE WHEN @CurrentIsReadOnly = 1 THEN 'READ_ONLY' WHEN  @CurrentIsReadOnly = 0 THEN 'READ_WRITE' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'User access: ' + @CurrentUserAccess
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Recovery model: ' + @CurrentRecoveryModel
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    IF @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
    BEGIN
      SELECT @CurrentReplicaID = databases.replica_id
      FROM sys.databases databases
      INNER JOIN sys.availability_replicas availability_replicas ON databases.replica_id = availability_replicas.replica_id
      WHERE databases.[name] = @CurrentDatabaseName

      SELECT @CurrentAvailabilityGroupID = group_id,
             @CurrentSecondaryRoleAllowConnections = secondary_role_allow_connections_desc
      FROM sys.availability_replicas
      WHERE replica_id = @CurrentReplicaID

      SELECT @CurrentAvailabilityGroupRole = role_desc
      FROM sys.dm_hadr_availability_replica_states
      WHERE replica_id = @CurrentReplicaID

      SELECT @CurrentAvailabilityGroup = [name],
             @CurrentAvailabilityGroupBackupPreference = UPPER(automated_backup_preference_desc)
      FROM sys.availability_groups
      WHERE group_id = @CurrentAvailabilityGroupID
    END

    IF @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1 AND @CurrentAvailabilityGroup IS NOT NULL AND @AvailabilityGroupReplicas = 'PREFERRED_BACKUP_REPLICA'
    BEGIN
      SELECT @CurrentIsPreferredBackupReplica = sys.fn_hadr_backup_is_preferred_replica(@CurrentDatabaseName)
    END

    IF SERVERPROPERTY('EngineEdition') <> 5
    BEGIN
      SELECT @CurrentDatabaseMirroringRole = UPPER(mirroring_role_desc)
      FROM sys.database_mirroring
      WHERE database_id = DB_ID(@CurrentDatabaseName)
    END

    IF @CurrentAvailabilityGroup IS NOT NULL
    BEGIN
      SET @DatabaseMessage =  'Availability group: ' + ISNULL(@CurrentAvailabilityGroup,'N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Availability group role: ' + ISNULL(@CurrentAvailabilityGroupRole,'N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      IF @CurrentAvailabilityGroupRole = 'SECONDARY'
      BEGIN
        SET @DatabaseMessage =  'Readable Secondary: ' + ISNULL(@CurrentSecondaryRoleAllowConnections,'N/A')
        RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
      END

      IF @AvailabilityGroupReplicas = 'PREFERRED_BACKUP_REPLICA'
      BEGIN
        SET @DatabaseMessage = 'Availability group backup preference: ' + ISNULL(@CurrentAvailabilityGroupBackupPreference,'N/A')
        RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

        SET @DatabaseMessage = 'Is preferred backup replica: ' + CASE WHEN @CurrentIsPreferredBackupReplica = 1 THEN 'Yes' WHEN @CurrentIsPreferredBackupReplica = 0 THEN 'No' ELSE 'N/A' END
        RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
      END
    END

    IF @CurrentDatabaseMirroringRole IS NOT NULL
    BEGIN
      SET @DatabaseMessage = 'Database mirroring role: ' + @CurrentDatabaseMirroringRole
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    RAISERROR(@EmptyLine,10,1) WITH NOWAIT

    IF @CurrentDatabaseState IN('ONLINE','EMERGENCY')
    AND NOT (@CurrentUserAccess = 'SINGLE_USER')
    AND (@CurrentAvailabilityGroupRole = 'PRIMARY' OR @CurrentAvailabilityGroupRole IS NULL OR SERVERPROPERTY('EngineEdition') = 3)
    AND ((@AvailabilityGroupReplicas = 'PRIMARY' AND @CurrentAvailabilityGroupRole = 'PRIMARY') OR (@AvailabilityGroupReplicas = 'SECONDARY' AND @CurrentAvailabilityGroupRole = 'SECONDARY') OR (@AvailabilityGroupReplicas = 'PREFERRED_BACKUP_REPLICA' AND @CurrentIsPreferredBackupReplica = 1) OR @AvailabilityGroupReplicas = 'ALL' OR @CurrentAvailabilityGroupRole IS NULL)
    AND NOT (@CurrentIsReadOnly = 1 AND @Updateability = 'READ_WRITE')
    AND NOT (@CurrentIsReadOnly = 0 AND @Updateability = 'READ_ONLY')
    BEGIN

      -- Check database
      IF EXISTS(SELECT * FROM @SelectedCheckCommands WHERE CheckCommand = 'CHECKDB') AND (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
      BEGIN
        SET @CurrentDatabaseContext = CASE WHEN SERVERPROPERTY('EngineEdition') = 5 THEN @CurrentDatabaseName ELSE 'master' END

        SET @CurrentCommandType = 'DBCC_CHECKDB'

        SET @CurrentCommand = ''
        IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '
        SET @CurrentCommand += 'DBCC CHECKDB (' + QUOTENAME(@CurrentDatabaseName)
        IF @NoIndex = 'Y' SET @CurrentCommand += ', NOINDEX'
        SET @CurrentCommand += ') WITH ALL_ERRORMSGS'
        IF @DataPurity = 'Y' SET @CurrentCommand += ', DATA_PURITY'
        IF @PhysicalOnly = 'Y' SET @CurrentCommand += ', PHYSICAL_ONLY'
        IF @ExtendedLogicalChecks = 'Y' SET @CurrentCommand += ', EXTENDED_LOGICAL_CHECKS'
        IF @NoInformationalMessages = 'Y' SET @CurrentCommand += ', NO_INFOMSGS'
        IF @TabLock = 'Y' SET @CurrentCommand += ', TABLOCK'
        IF @MaxDOP IS NOT NULL SET @CurrentCommand += ', MAXDOP = ' + CAST(@MaxDOP AS nvarchar)

        EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @LogToTable = @LogToTable, @Execute = @Execute
        SET @Error = @@ERROR
        IF @Error <> 0 SET @CurrentCommandOutput = @Error
        IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput
      END

      -- Check filegroups
      IF EXISTS(SELECT * FROM @SelectedCheckCommands WHERE CheckCommand = 'CHECKFILEGROUP')
      AND (@CurrentAvailabilityGroupRole = 'PRIMARY' OR (@CurrentAvailabilityGroupRole = 'SECONDARY' AND @CurrentSecondaryRoleAllowConnections = 'ALL') OR @CurrentAvailabilityGroupRole IS NULL)
      AND (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
      BEGIN
        SET @CurrentCommand = 'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; SELECT data_space_id AS FileGroupID, name AS FileGroupName, 0 AS [Order], 0 AS Selected, 0 AS Completed FROM sys.filegroups filegroups WHERE [type] <> ''FX'' ORDER BY CASE WHEN filegroups.name = ''PRIMARY'' THEN 1 ELSE 0 END DESC, filegroups.name ASC'

        INSERT INTO @tmpFileGroups (FileGroupID, FileGroupName, [Order], Selected, Completed)
        EXECUTE @CurrentDatabase_sp_executesql  @stmt = @CurrentCommand
        SET @Error = @@ERROR
        IF @Error <> 0 SET @ReturnCode = @Error

        IF @FileGroups IS NULL
        BEGIN
          UPDATE tmpFileGroups
          SET tmpFileGroups.Selected = 1
          FROM @tmpFileGroups tmpFileGroups
        END
        ELSE
        BEGIN
          UPDATE tmpFileGroups
          SET tmpFileGroups.Selected = SelectedFileGroups.Selected
          FROM @tmpFileGroups tmpFileGroups
          INNER JOIN @SelectedFileGroups SelectedFileGroups
          ON @CurrentDatabaseName LIKE REPLACE(SelectedFileGroups.DatabaseName,'_','[_]') AND tmpFileGroups.FileGroupName LIKE REPLACE(SelectedFileGroups.FileGroupName,'_','[_]')
          WHERE SelectedFileGroups.Selected = 1

          UPDATE tmpFileGroups
          SET tmpFileGroups.Selected = SelectedFileGroups.Selected
          FROM @tmpFileGroups tmpFileGroups
          INNER JOIN @SelectedFileGroups SelectedFileGroups
          ON @CurrentDatabaseName LIKE REPLACE(SelectedFileGroups.DatabaseName,'_','[_]') AND tmpFileGroups.FileGroupName LIKE REPLACE(SelectedFileGroups.FileGroupName,'_','[_]')
          WHERE SelectedFileGroups.Selected = 0

          UPDATE tmpFileGroups
          SET tmpFileGroups.StartPosition = SelectedFileGroups2.StartPosition
          FROM @tmpFileGroups tmpFileGroups
          INNER JOIN (SELECT tmpFileGroups.FileGroupName, MIN(SelectedFileGroups.StartPosition) AS StartPosition
                      FROM @tmpFileGroups tmpFileGroups
                      INNER JOIN @SelectedFileGroups SelectedFileGroups
                      ON @CurrentDatabaseName LIKE REPLACE(SelectedFileGroups.DatabaseName,'_','[_]') AND tmpFileGroups.FileGroupName LIKE REPLACE(SelectedFileGroups.FileGroupName,'_','[_]')
                      WHERE SelectedFileGroups.Selected = 1
                      GROUP BY tmpFileGroups.FileGroupName) SelectedFileGroups2
          ON tmpFileGroups.FileGroupName = SelectedFileGroups2.FileGroupName
        END;

        WITH tmpFileGroups AS (
        SELECT FileGroupName, [Order], ROW_NUMBER() OVER (ORDER BY StartPosition ASC, FileGroupName ASC) AS RowNumber
        FROM @tmpFileGroups tmpFileGroups
        WHERE Selected = 1
        )
        UPDATE tmpFileGroups
        SET [Order] = RowNumber

        SET @ErrorMessage = ''
        SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + '.' + QUOTENAME(FileGroupName) + ', '
        FROM @SelectedFileGroups SelectedFileGroups
        WHERE DatabaseName = @CurrentDatabaseName
        AND FileGroupName NOT LIKE '%[%]%'
        AND NOT EXISTS (SELECT * FROM @tmpFileGroups WHERE FileGroupName = SelectedFileGroups.FileGroupName)
        IF @@ROWCOUNT > 0
        BEGIN
          SET @ErrorMessage = 'The following file groups do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.'
          RAISERROR('%s',10,1,@ErrorMessage) WITH NOWAIT
          SET @Error = @@ERROR
          RAISERROR(@EmptyLine,10,1) WITH NOWAIT
        END

        WHILE (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
        BEGIN
          SELECT TOP 1 @CurrentFGID = ID,
                       @CurrentFileGroupID = FileGroupID,
                       @CurrentFileGroupName = FileGroupName
          FROM @tmpFileGroups
          WHERE Selected = 1
          AND Completed = 0
          ORDER BY [Order] ASC

          IF @@ROWCOUNT = 0
          BEGIN
            BREAK
          END

          -- Does the filegroup exist?
          SET @CurrentCommand = ''
          IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '
          SET @CurrentCommand += 'IF EXISTS(SELECT * FROM sys.filegroups filegroups WHERE [type] <> ''FX'' AND filegroups.data_space_id = @ParamFileGroupID AND filegroups.[name] = @ParamFileGroupName) BEGIN SET @ParamFileGroupExists = 1 END'

          BEGIN TRY
            EXECUTE @CurrentDatabase_sp_executesql @stmt = @CurrentCommand, @params = N'@ParamFileGroupID int, @ParamFileGroupName sysname, @ParamFileGroupExists bit OUTPUT', @ParamFileGroupID = @CurrentFileGroupID, @ParamFileGroupName = @CurrentFileGroupName, @ParamFileGroupExists = @CurrentFileGroupExists OUTPUT

            IF @CurrentFileGroupExists IS NULL SET @CurrentFileGroupExists = 0
          END TRY
          BEGIN CATCH
            SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'') + CASE WHEN ERROR_NUMBER() = 1222 THEN ', ' + ' The file group ' + QUOTENAME(@CurrentFileGroupName) + ' in the database ' + QUOTENAME(@CurrentDatabaseName) + ' is locked. It could not be checked if the filegroup exists.' ELSE '' END
            SET @Severity = CASE WHEN ERROR_NUMBER() IN(1205,1222) THEN @LockMessageSeverity ELSE 16 END
            RAISERROR('%s',@Severity,1,@ErrorMessage) WITH NOWAIT
            RAISERROR(@EmptyLine,10,1) WITH NOWAIT

            IF NOT (ERROR_NUMBER() IN(1205,1222) AND @LockMessageSeverity = 10)
            BEGIN
              SET @ReturnCode = ERROR_NUMBER()
            END
          END CATCH

          IF @CurrentFileGroupExists = 1
          BEGIN
            SET @CurrentDatabaseContext = @CurrentDatabaseName

            SET @CurrentCommandType = 'DBCC_CHECKFILEGROUP'

            SET @CurrentCommand = ''
            IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '
            SET @CurrentCommand += 'DBCC CHECKFILEGROUP (' + QUOTENAME(@CurrentFileGroupName)
            IF @NoIndex = 'Y' SET @CurrentCommand += ', NOINDEX'
            SET @CurrentCommand += ') WITH ALL_ERRORMSGS'
            IF @PhysicalOnly = 'Y' SET @CurrentCommand += ', PHYSICAL_ONLY'
            IF @NoInformationalMessages = 'Y' SET @CurrentCommand += ', NO_INFOMSGS'
            IF @TabLock = 'Y' SET @CurrentCommand += ', TABLOCK'
            IF @MaxDOP IS NOT NULL SET @CurrentCommand += ', MAXDOP = ' + CAST(@MaxDOP AS nvarchar)

            EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @LogToTable = @LogToTable, @Execute = @Execute
            SET @Error = @@ERROR
            IF @Error <> 0 SET @CurrentCommandOutput = @Error
            IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput
          END

          UPDATE @tmpFileGroups
          SET Completed = 1
          WHERE Selected = 1
          AND Completed = 0
          AND ID = @CurrentFGID

          SET @CurrentFGID = NULL
          SET @CurrentFileGroupID = NULL
          SET @CurrentFileGroupName = NULL
          SET @CurrentFileGroupExists = NULL

          SET @CurrentDatabaseContext = NULL
          SET @CurrentCommand = NULL
          SET @CurrentCommandOutput = NULL
          SET @CurrentCommandType = NULL
        END
      END

      -- Check disk space allocation structures
      IF EXISTS(SELECT * FROM @SelectedCheckCommands WHERE CheckCommand = 'CHECKALLOC') AND (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
      BEGIN
        SET @CurrentDatabaseContext = CASE WHEN SERVERPROPERTY('EngineEdition') = 5 THEN @CurrentDatabaseName ELSE 'master' END

        SET @CurrentCommandType = 'DBCC_CHECKALLOC'

        SET @CurrentCommand = ''
        IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '
        SET @CurrentCommand += 'DBCC CHECKALLOC (' + QUOTENAME(@CurrentDatabaseName)
        SET @CurrentCommand += ') WITH ALL_ERRORMSGS'
        IF @NoInformationalMessages = 'Y' SET @CurrentCommand += ', NO_INFOMSGS'
        IF @TabLock = 'Y' SET @CurrentCommand += ', TABLOCK'

        EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @LogToTable = @LogToTable, @Execute = @Execute
        SET @Error = @@ERROR
        IF @Error <> 0 SET @CurrentCommandOutput = @Error
        IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput
      END

      -- Check objects
      IF EXISTS(SELECT * FROM @SelectedCheckCommands WHERE CheckCommand = 'CHECKTABLE')
      AND (@CurrentAvailabilityGroupRole = 'PRIMARY' OR (@CurrentAvailabilityGroupRole = 'SECONDARY' AND @CurrentSecondaryRoleAllowConnections = 'ALL') OR @CurrentAvailabilityGroupRole IS NULL)
      AND (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
      BEGIN
        SET @CurrentCommand = 'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; SELECT schemas.[schema_id] AS SchemaID, schemas.[name] AS SchemaName, objects.[object_id] AS ObjectID, objects.[name] AS ObjectName, RTRIM(objects.[type]) AS ObjectType, 0 AS [Order], 0 AS Selected, 0 AS Completed FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.schema_id = schemas.schema_id LEFT OUTER JOIN sys.tables tables ON objects.object_id = tables.object_id WHERE objects.[type] IN(''U'',''V'') AND EXISTS(SELECT * FROM sys.indexes indexes WHERE indexes.object_id = objects.object_id)' + CASE WHEN @Version >= 12 THEN ' AND (tables.is_memory_optimized = 0 OR is_memory_optimized IS NULL)' ELSE '' END + ' ORDER BY schemas.name ASC, objects.name ASC'

        INSERT INTO @tmpObjects (SchemaID, SchemaName, ObjectID, ObjectName, ObjectType, [Order], Selected, Completed)
        EXECUTE @CurrentDatabase_sp_executesql @stmt = @CurrentCommand
        SET @Error = @@ERROR
        IF @Error <> 0 SET @ReturnCode = @Error

        IF @Objects IS NULL
        BEGIN
          UPDATE tmpObjects
          SET tmpObjects.Selected = 1
          FROM @tmpObjects tmpObjects
        END
        ELSE
        BEGIN
          UPDATE tmpObjects
          SET tmpObjects.Selected = SelectedObjects.Selected
          FROM @tmpObjects tmpObjects
          INNER JOIN @SelectedObjects SelectedObjects
          ON @CurrentDatabaseName LIKE REPLACE(SelectedObjects.DatabaseName,'_','[_]') AND tmpObjects.SchemaName LIKE REPLACE(SelectedObjects.SchemaName,'_','[_]') AND tmpObjects.ObjectName LIKE REPLACE(SelectedObjects.ObjectName,'_','[_]')
          WHERE SelectedObjects.Selected = 1

          UPDATE tmpObjects
          SET tmpObjects.Selected = SelectedObjects.Selected
          FROM @tmpObjects tmpObjects
          INNER JOIN @SelectedObjects SelectedObjects
          ON @CurrentDatabaseName LIKE REPLACE(SelectedObjects.DatabaseName,'_','[_]') AND tmpObjects.SchemaName LIKE REPLACE(SelectedObjects.SchemaName,'_','[_]') AND tmpObjects.ObjectName LIKE REPLACE(SelectedObjects.ObjectName,'_','[_]')
          WHERE SelectedObjects.Selected = 0

          UPDATE tmpObjects
          SET tmpObjects.StartPosition = SelectedObjects2.StartPosition
          FROM @tmpObjects tmpObjects
          INNER JOIN (SELECT tmpObjects.SchemaName, tmpObjects.ObjectName, MIN(SelectedObjects.StartPosition) AS StartPosition
                      FROM @tmpObjects tmpObjects
                      INNER JOIN @SelectedObjects SelectedObjects
                      ON @CurrentDatabaseName LIKE REPLACE(SelectedObjects.DatabaseName,'_','[_]') AND tmpObjects.SchemaName LIKE REPLACE(SelectedObjects.SchemaName,'_','[_]') AND tmpObjects.ObjectName LIKE REPLACE(SelectedObjects.ObjectName,'_','[_]')
                      WHERE SelectedObjects.Selected = 1
                      GROUP BY tmpObjects.SchemaName, tmpObjects.ObjectName) SelectedObjects2
          ON tmpObjects.SchemaName = SelectedObjects2.SchemaName AND tmpObjects.ObjectName = SelectedObjects2.ObjectName
        END;

        WITH tmpObjects AS (
        SELECT SchemaName, ObjectName, [Order], ROW_NUMBER() OVER (ORDER BY StartPosition ASC, SchemaName ASC, ObjectName ASC) AS RowNumber
        FROM @tmpObjects tmpObjects
        WHERE Selected = 1
        )
        UPDATE tmpObjects
        SET [Order] = RowNumber

        SET @ErrorMessage = ''
        SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + '.' + QUOTENAME(SchemaName) + '.' + QUOTENAME(ObjectName) + ', '
        FROM @SelectedObjects SelectedObjects
        WHERE DatabaseName = @CurrentDatabaseName
        AND SchemaName NOT LIKE '%[%]%'
        AND ObjectName NOT LIKE '%[%]%'
        AND NOT EXISTS (SELECT * FROM @tmpObjects WHERE SchemaName = SelectedObjects.SchemaName AND ObjectName = SelectedObjects.ObjectName)
        IF @@ROWCOUNT > 0
        BEGIN
          SET @ErrorMessage = 'The following objects do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.'
          RAISERROR('%s',10,1,@ErrorMessage) WITH NOWAIT
          SET @Error = @@ERROR
          RAISERROR(@EmptyLine,10,1) WITH NOWAIT
        END

        WHILE (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
        BEGIN
          SELECT TOP 1 @CurrentOID = ID,
                       @CurrentSchemaID = SchemaID,
                       @CurrentSchemaName = SchemaName,
                       @CurrentObjectID = ObjectID,
                       @CurrentObjectName = ObjectName,
                       @CurrentObjectType = ObjectType
          FROM @tmpObjects
          WHERE Selected = 1
          AND Completed = 0
          ORDER BY [Order] ASC

          IF @@ROWCOUNT = 0
          BEGIN
            BREAK
          END

          -- Does the object exist?
          SET @CurrentCommand = ''
          IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '
          SET @CurrentCommand += 'IF EXISTS(SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.schema_id = schemas.schema_id LEFT OUTER JOIN sys.tables tables ON objects.object_id = tables.object_id WHERE objects.[type] IN(''U'',''V'') AND EXISTS(SELECT * FROM sys.indexes indexes WHERE indexes.object_id = objects.object_id)' + CASE WHEN @Version >= 12 THEN ' AND (tables.is_memory_optimized = 0 OR is_memory_optimized IS NULL)' ELSE '' END + ' AND schemas.[schema_id] = @ParamSchemaID AND schemas.[name] = @ParamSchemaName AND objects.[object_id] = @ParamObjectID AND objects.[name] = @ParamObjectName AND objects.[type] = @ParamObjectType) BEGIN SET @ParamObjectExists = 1 END'

          BEGIN TRY
            EXECUTE @CurrentDatabase_sp_executesql @stmt = @CurrentCommand, @params = N'@ParamSchemaID int, @ParamSchemaName sysname, @ParamObjectID int, @ParamObjectName sysname, @ParamObjectType sysname, @ParamObjectExists bit OUTPUT', @ParamSchemaID = @CurrentSchemaID, @ParamSchemaName = @CurrentSchemaName, @ParamObjectID = @CurrentObjectID, @ParamObjectName = @CurrentObjectName, @ParamObjectType = @CurrentObjectType, @ParamObjectExists = @CurrentObjectExists OUTPUT

            IF @CurrentObjectExists IS NULL SET @CurrentObjectExists = 0
          END TRY
          BEGIN CATCH
            SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'') + CASE WHEN ERROR_NUMBER() = 1222 THEN ', ' + 'The object ' + QUOTENAME(@CurrentDatabaseName) + '.' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentObjectName) + ' is locked. It could not be checked if the object exists.' ELSE '' END
            SET @Severity = CASE WHEN ERROR_NUMBER() IN(1205,1222) THEN @LockMessageSeverity ELSE 16 END
            RAISERROR('%s',@Severity,1,@ErrorMessage) WITH NOWAIT
            RAISERROR(@EmptyLine,10,1) WITH NOWAIT

            IF NOT (ERROR_NUMBER() IN(1205,1222) AND @LockMessageSeverity = 10)
            BEGIN
              SET @ReturnCode = ERROR_NUMBER()
            END
          END CATCH

          IF @CurrentObjectExists = 1
          BEGIN
            SET @CurrentDatabaseContext = @CurrentDatabaseName

            SET @CurrentCommandType = 'DBCC_CHECKTABLE'

            SET @CurrentCommand = ''
            IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '
            SET @CurrentCommand += 'DBCC CHECKTABLE (' + QUOTENAME(QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentObjectName),'''')
            IF @NoIndex = 'Y' SET @CurrentCommand += ', NOINDEX'
            SET @CurrentCommand += ') WITH ALL_ERRORMSGS'
            IF @DataPurity = 'Y' SET @CurrentCommand += ', DATA_PURITY'
            IF @PhysicalOnly = 'Y' SET @CurrentCommand += ', PHYSICAL_ONLY'
            IF @ExtendedLogicalChecks = 'Y' SET @CurrentCommand += ', EXTENDED_LOGICAL_CHECKS'
            IF @NoInformationalMessages = 'Y' SET @CurrentCommand += ', NO_INFOMSGS'
            IF @TabLock = 'Y' SET @CurrentCommand += ', TABLOCK'
            IF @MaxDOP IS NOT NULL SET @CurrentCommand += ', MAXDOP = ' + CAST(@MaxDOP AS nvarchar)

            EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @SchemaName = @CurrentSchemaName, @ObjectName = @CurrentObjectName, @ObjectType = @CurrentObjectType, @LogToTable = @LogToTable, @Execute = @Execute
            SET @Error = @@ERROR
            IF @Error <> 0 SET @CurrentCommandOutput = @Error
            IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput
          END

          UPDATE @tmpObjects
          SET Completed = 1
          WHERE Selected = 1
          AND Completed = 0
          AND ID = @CurrentOID

          SET @CurrentOID = NULL
          SET @CurrentSchemaID = NULL
          SET @CurrentSchemaName = NULL
          SET @CurrentObjectID = NULL
          SET @CurrentObjectName = NULL
          SET @CurrentObjectType = NULL
          SET @CurrentObjectExists = NULL

          SET @CurrentDatabaseContext = NULL
          SET @CurrentCommand = NULL
          SET @CurrentCommandOutput = NULL
          SET @CurrentCommandType = NULL
        END
      END

      -- Check catalog
      IF EXISTS(SELECT * FROM @SelectedCheckCommands WHERE CheckCommand = 'CHECKCATALOG') AND (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
      BEGIN
        SET @CurrentDatabaseContext = CASE WHEN SERVERPROPERTY('EngineEdition') = 5 THEN @CurrentDatabaseName ELSE 'master' END

        SET @CurrentCommandType = 'DBCC_CHECKCATALOG'

        SET @CurrentCommand = ''
        IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '
        SET @CurrentCommand += 'DBCC CHECKCATALOG (' + QUOTENAME(@CurrentDatabaseName)
        SET @CurrentCommand += ')'
        IF @NoInformationalMessages = 'Y' SET @CurrentCommand += ' WITH NO_INFOMSGS'

        EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseContext, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 1, @DatabaseName = @CurrentDatabaseName, @LogToTable = @LogToTable, @Execute = @Execute
        SET @Error = @@ERROR
        IF @Error <> 0 SET @CurrentCommandOutput = @Error
        IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput
      END

    END

    IF @CurrentDatabaseState = 'SUSPECT'
    BEGIN
      SET @ErrorMessage = 'The database ' + QUOTENAME(@CurrentDatabaseName) + ' is in a SUSPECT state.'
      RAISERROR('%s',16,1,@ErrorMessage) WITH NOWAIT
      SET @Error = @@ERROR
      RAISERROR(@EmptyLine,10,1) WITH NOWAIT
    END

    -- Update that the database is completed
    IF @DatabasesInParallel = 'Y'
    BEGIN
      UPDATE dbo.QueueDatabase
      SET DatabaseEndTime = SYSDATETIME()
      WHERE QueueID = @QueueID
      AND DatabaseName = @CurrentDatabaseName
    END
    ELSE
    BEGIN
      UPDATE @tmpDatabases
      SET Completed = 1
      WHERE Selected = 1
      AND Completed = 0
      AND ID = @CurrentDBID
    END

    -- Clear variables
    SET @CurrentDBID = NULL
    SET @CurrentDatabaseName = NULL

    SET @CurrentDatabase_sp_executesql = NULL

    SET @CurrentUserAccess = NULL
    SET @CurrentIsReadOnly = NULL
    SET @CurrentDatabaseState = NULL
    SET @CurrentInStandby = NULL
    SET @CurrentRecoveryModel = NULL

    SET @CurrentReplicaID = NULL
    SET @CurrentAvailabilityGroupID = NULL
    SET @CurrentAvailabilityGroup = NULL
    SET @CurrentAvailabilityGroupRole = NULL
    SET @CurrentAvailabilityGroupBackupPreference = NULL
    SET @CurrentSecondaryRoleAllowConnections = NULL
    SET @CurrentIsPreferredBackupReplica = NULL
    SET @CurrentDatabaseMirroringRole = NULL

    SET @CurrentDatabaseContext = NULL
    SET @CurrentCommand = NULL
    SET @CurrentCommandOutput = NULL
    SET @CurrentCommandType = NULL

    DELETE FROM @tmpFileGroups
    DELETE FROM @tmpObjects

  END

  ----------------------------------------------------------------------------------------------------
  --// Log completing information                                                                 //--
  ----------------------------------------------------------------------------------------------------

  Logging:
  SET @EndMessage = 'Date and time: ' + CONVERT(nvarchar,SYSDATETIME(),120)
  RAISERROR('%s',10,1,@EndMessage) WITH NOWAIT

  RAISERROR(@EmptyLine,10,1) WITH NOWAIT

  IF @ReturnCode <> 0
  BEGIN
    RETURN @ReturnCode
  END

  ----------------------------------------------------------------------------------------------------

END

GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[IndexOptimize]') AND type in (N'P', N'PC'))
BEGIN
EXEC dbo.sp_executesql @statement = N'CREATE PROCEDURE [dbo].[IndexOptimize] AS'
END
GO
ALTER PROCEDURE [dbo].[IndexOptimize]

@Databases nvarchar(max) = NULL,
@FragmentationLow nvarchar(max) = NULL,
@FragmentationMedium nvarchar(max) = 'INDEX_REORGANIZE,INDEX_REBUILD_ONLINE,INDEX_REBUILD_OFFLINE',
@FragmentationHigh nvarchar(max) = 'INDEX_REBUILD_ONLINE,INDEX_REBUILD_OFFLINE',
@FragmentationLevel1 int = 5,
@FragmentationLevel2 int = 30,
@MinNumberOfPages int = 1000,
@MaxNumberOfPages int = NULL,
@SortInTempdb nvarchar(max) = 'N',
@MaxDOP int = NULL,
@FillFactor int = NULL,
@PadIndex nvarchar(max) = NULL,
@LOBCompaction nvarchar(max) = 'Y',
@UpdateStatistics nvarchar(max) = NULL,
@OnlyModifiedStatistics nvarchar(max) = 'N',
@StatisticsModificationLevel int = NULL,
@StatisticsSample int = NULL,
@StatisticsResample nvarchar(max) = 'N',
@PartitionLevel nvarchar(max) = 'Y',
@MSShippedObjects nvarchar(max) = 'N',
@Indexes nvarchar(max) = NULL,
@TimeLimit int = NULL,
@Delay int = NULL,
@WaitAtLowPriorityMaxDuration int = NULL,
@WaitAtLowPriorityAbortAfterWait nvarchar(max) = NULL,
@Resumable nvarchar(max) = 'N',
@AvailabilityGroups nvarchar(max) = NULL,
@LockTimeout int = NULL,
@LockMessageSeverity int = 16,
@StringDelimiter nvarchar(max) = ',',
@DatabaseOrder nvarchar(max) = NULL,
@DatabasesInParallel nvarchar(max) = 'N',
@ExecuteAsUser nvarchar(max) = NULL,
@LogToTable nvarchar(max) = 'N',
@Execute nvarchar(max) = 'Y'

AS

BEGIN

  ----------------------------------------------------------------------------------------------------
  --// Source:  https://ola.hallengren.com                                                        //--
  --// License: https://ola.hallengren.com/license.html                                           //--
  --// GitHub:  https://github.com/olahallengren/sql-server-maintenance-solution                  //--
  --// Version: 2025-01-28 20:19:42                                                               //--
  ----------------------------------------------------------------------------------------------------

  SET NOCOUNT ON

  SET ARITHABORT ON

  SET NUMERIC_ROUNDABORT OFF

  DECLARE @StartMessage nvarchar(max)
  DECLARE @EndMessage nvarchar(max)
  DECLARE @DatabaseMessage nvarchar(max)
  DECLARE @ErrorMessage nvarchar(max)
  DECLARE @Severity int

  DECLARE @StartTime datetime2 = SYSDATETIME()
  DECLARE @SchemaName nvarchar(max) = OBJECT_SCHEMA_NAME(@@PROCID)
  DECLARE @ObjectName nvarchar(max) = OBJECT_NAME(@@PROCID)
  DECLARE @VersionTimestamp nvarchar(max) = SUBSTRING(OBJECT_DEFINITION(@@PROCID),CHARINDEX('--// Version: ',OBJECT_DEFINITION(@@PROCID)) + LEN('--// Version: ') + 1, 19)
  DECLARE @Parameters nvarchar(max)

  DECLARE @HostPlatform nvarchar(max)

  DECLARE @PartitionLevelStatistics bit

  DECLARE @QueueID int
  DECLARE @QueueStartTime datetime2

  DECLARE @CurrentDBID int
  DECLARE @CurrentDatabaseName nvarchar(max)

  DECLARE @CurrentDatabase_sp_executesql nvarchar(max)

  DECLARE @CurrentExecuteAsUserExists bit
  DECLARE @CurrentUserAccess nvarchar(max)
  DECLARE @CurrentIsReadOnly bit
  DECLARE @CurrentDatabaseState nvarchar(max)
  DECLARE @CurrentInStandby bit
  DECLARE @CurrentRecoveryModel nvarchar(max)

  DECLARE @CurrentReplicaID uniqueidentifier
  DECLARE @CurrentAvailabilityGroupID uniqueidentifier
  DECLARE @CurrentAvailabilityGroup nvarchar(max)
  DECLARE @CurrentAvailabilityGroupRole nvarchar(max)
  DECLARE @CurrentDatabaseMirroringRole nvarchar(max)

  DECLARE @CurrentDatabaseContext nvarchar(max)
  DECLARE @CurrentCommand nvarchar(max)
  DECLARE @CurrentCommandOutput int
  DECLARE @CurrentCommandType nvarchar(max)
  DECLARE @CurrentComment nvarchar(max)
  DECLARE @CurrentExtendedInfo xml

  DECLARE @Errors TABLE (ID int IDENTITY PRIMARY KEY,
                         [Message] nvarchar(max) NOT NULL,
                         Severity int NOT NULL,
                         [State] int)

  DECLARE @CurrentMessage nvarchar(max)
  DECLARE @CurrentSeverity int
  DECLARE @CurrentState int

  DECLARE @CurrentIxID int
  DECLARE @CurrentIxOrder int
  DECLARE @CurrentSchemaID int
  DECLARE @CurrentSchemaName nvarchar(max)
  DECLARE @CurrentObjectID int
  DECLARE @CurrentObjectName nvarchar(max)
  DECLARE @CurrentObjectType nvarchar(max)
  DECLARE @CurrentIsMemoryOptimized bit
  DECLARE @CurrentIndexID int
  DECLARE @CurrentIndexName nvarchar(max)
  DECLARE @CurrentIndexType int
  DECLARE @CurrentStatisticsID int
  DECLARE @CurrentStatisticsName nvarchar(max)
  DECLARE @CurrentPartitionID bigint
  DECLARE @CurrentPartitionNumber int
  DECLARE @CurrentPartitionCount int
  DECLARE @CurrentIsPartition bit
  DECLARE @CurrentIndexExists bit
  DECLARE @CurrentStatisticsExists bit
  DECLARE @CurrentIsImageText bit
  DECLARE @CurrentIsNewLOB bit
  DECLARE @CurrentIsFileStream bit
  DECLARE @CurrentIsColumnStore bit
  DECLARE @CurrentIsComputed bit
  DECLARE @CurrentIsClusteredIndexComputed bit
  DECLARE @CurrentIsTimestamp bit
  DECLARE @CurrentAllowPageLocks bit
  DECLARE @CurrentHasFilter bit
  DECLARE @CurrentNoRecompute bit
  DECLARE @CurrentIsIncremental bit
  DECLARE @CurrentRowCount bigint
  DECLARE @CurrentModificationCounter bigint
  DECLARE @CurrentOnReadOnlyFileGroup bit
  DECLARE @CurrentResumableIndexOperation bit
  DECLARE @CurrentFragmentationLevel float
  DECLARE @CurrentPageCount bigint
  DECLARE @CurrentFragmentationGroup nvarchar(max)
  DECLARE @CurrentAction nvarchar(max)
  DECLARE @CurrentMaxDOP int
  DECLARE @CurrentUpdateStatistics nvarchar(max)
  DECLARE @CurrentStatisticsSample int
  DECLARE @CurrentStatisticsResample nvarchar(max)
  DECLARE @CurrentDelay datetime

  DECLARE @tmpDatabases TABLE (ID int IDENTITY,
                               DatabaseName nvarchar(max),
                               DatabaseType nvarchar(max),
                               AvailabilityGroup bit,
                               StartPosition int,
                               DatabaseSize bigint,
                               [Order] int,
                               Selected bit,
                               Completed bit,
                               PRIMARY KEY(Selected, Completed, [Order], ID))

  DECLARE @tmpAvailabilityGroups TABLE (ID int IDENTITY PRIMARY KEY,
                                        AvailabilityGroupName nvarchar(max),
                                        StartPosition int,
                                        Selected bit)

  DECLARE @tmpDatabasesAvailabilityGroups TABLE (DatabaseName nvarchar(max),
                                                 AvailabilityGroupName nvarchar(max))

  DECLARE @tmpIndexesStatistics TABLE (ID int IDENTITY,
                                       SchemaID int,
                                       SchemaName nvarchar(max),
                                       ObjectID int,
                                       ObjectName nvarchar(max),
                                       ObjectType nvarchar(max),
                                       IsMemoryOptimized bit,
                                       IndexID int,
                                       IndexName nvarchar(max),
                                       IndexType int,
                                       AllowPageLocks bit,
                                       HasFilter bit,
                                       IsImageText bit,
                                       IsNewLOB bit,
                                       IsFileStream bit,
                                       IsColumnStore bit,
                                       IsComputed bit,
                                       IsClusteredIndexComputed bit,
                                       IsTimestamp bit,
                                       OnReadOnlyFileGroup bit,
                                       ResumableIndexOperation bit,
                                       StatisticsID int,
                                       StatisticsName nvarchar(max),
                                       [NoRecompute] bit,
                                       IsIncremental bit,
                                       PartitionID bigint,
                                       PartitionNumber int,
                                       PartitionCount int,
                                       StartPosition int,
                                       [Order] int,
                                       Selected bit,
                                       Completed bit,
                                       PRIMARY KEY(Selected, Completed, [Order], ID))

  DECLARE @SelectedDatabases TABLE (DatabaseName nvarchar(max),
                                    DatabaseType nvarchar(max),
                                    AvailabilityGroup nvarchar(max),
                                    StartPosition int,
                                    Selected bit)

  DECLARE @SelectedAvailabilityGroups TABLE (AvailabilityGroupName nvarchar(max),
                                             StartPosition int,
                                             Selected bit)

  DECLARE @SelectedIndexes TABLE (DatabaseName nvarchar(max),
                                  SchemaName nvarchar(max),
                                  ObjectName nvarchar(max),
                                  IndexName nvarchar(max),
                                  StartPosition int,
                                  Selected bit)

  DECLARE @Actions TABLE ([Action] nvarchar(max))

  INSERT INTO @Actions([Action]) VALUES('INDEX_REBUILD_ONLINE')
  INSERT INTO @Actions([Action]) VALUES('INDEX_REBUILD_OFFLINE')
  INSERT INTO @Actions([Action]) VALUES('INDEX_REORGANIZE')

  DECLARE @ActionsPreferred TABLE (FragmentationGroup nvarchar(max),
                                   [Priority] int,
                                   [Action] nvarchar(max))

  DECLARE @CurrentActionsAllowed TABLE ([Action] nvarchar(max))

  DECLARE @CurrentAlterIndexWithClauseArguments TABLE (ID int IDENTITY,
                                                       Argument nvarchar(max),
                                                       Added bit DEFAULT 0)

  DECLARE @CurrentAlterIndexArgumentID int
  DECLARE @CurrentAlterIndexArgument nvarchar(max)
  DECLARE @CurrentAlterIndexWithClause nvarchar(max)

  DECLARE @CurrentUpdateStatisticsWithClauseArguments TABLE (ID int IDENTITY,
                                                             Argument nvarchar(max),
                                                             Added bit DEFAULT 0)

  DECLARE @CurrentUpdateStatisticsArgumentID int
  DECLARE @CurrentUpdateStatisticsArgument nvarchar(max)
  DECLARE @CurrentUpdateStatisticsWithClause nvarchar(max)

  DECLARE @Error int = 0
  DECLARE @ReturnCode int = 0

  DECLARE @EmptyLine nvarchar(max) = CHAR(9)

  DECLARE @Version numeric(18,10) = CAST(LEFT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)),CHARINDEX('.',CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))) - 1) + '.' + REPLACE(RIGHT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)), LEN(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))) - CHARINDEX('.',CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)))),'.','') AS numeric(18,10))

  IF @Version >= 14
  BEGIN
    SELECT @HostPlatform = host_platform
    FROM sys.dm_os_host_info
  END
  ELSE
  BEGIN
    SET @HostPlatform = 'Windows'
  END

  DECLARE @AmazonRDS bit = CASE WHEN DB_ID('rdsadmin') IS NOT NULL AND SUSER_SNAME(0x01) = 'rdsa' THEN 1 ELSE 0 END

  ----------------------------------------------------------------------------------------------------
  --// Log initial information                                                                    //--
  ----------------------------------------------------------------------------------------------------

  SET @Parameters = '@Databases = ' + ISNULL('''' + REPLACE(@Databases,'''','''''') + '''','NULL')
  SET @Parameters += ', @FragmentationLow = ' + ISNULL('''' + REPLACE(@FragmentationLow,'''','''''') + '''','NULL')
  SET @Parameters += ', @FragmentationMedium = ' + ISNULL('''' + REPLACE(@FragmentationMedium,'''','''''') + '''','NULL')
  SET @Parameters += ', @FragmentationHigh = ' + ISNULL('''' + REPLACE(@FragmentationHigh,'''','''''') + '''','NULL')
  SET @Parameters += ', @FragmentationLevel1 = ' + ISNULL(CAST(@FragmentationLevel1 AS nvarchar),'NULL')
  SET @Parameters += ', @FragmentationLevel2 = ' + ISNULL(CAST(@FragmentationLevel2 AS nvarchar),'NULL')
  SET @Parameters += ', @MinNumberOfPages = ' + ISNULL(CAST(@MinNumberOfPages AS nvarchar),'NULL')
  SET @Parameters += ', @MaxNumberOfPages = ' + ISNULL(CAST(@MaxNumberOfPages AS nvarchar),'NULL')
  SET @Parameters += ', @SortInTempdb = ' + ISNULL('''' + REPLACE(@SortInTempdb,'''','''''') + '''','NULL')
  SET @Parameters += ', @MaxDOP = ' + ISNULL(CAST(@MaxDOP AS nvarchar),'NULL')
  SET @Parameters += ', @FillFactor = ' + ISNULL(CAST(@FillFactor AS nvarchar),'NULL')
  SET @Parameters += ', @PadIndex = ' + ISNULL('''' + REPLACE(@PadIndex,'''','''''') + '''','NULL')
  SET @Parameters += ', @LOBCompaction = ' + ISNULL('''' + REPLACE(@LOBCompaction,'''','''''') + '''','NULL')
  SET @Parameters += ', @UpdateStatistics = ' + ISNULL('''' + REPLACE(@UpdateStatistics,'''','''''') + '''','NULL')
  SET @Parameters += ', @OnlyModifiedStatistics = ' + ISNULL('''' + REPLACE(@OnlyModifiedStatistics,'''','''''') + '''','NULL')
  SET @Parameters += ', @StatisticsModificationLevel = ' + ISNULL(CAST(@StatisticsModificationLevel AS nvarchar),'NULL')
  SET @Parameters += ', @StatisticsSample = ' + ISNULL(CAST(@StatisticsSample AS nvarchar),'NULL')
  SET @Parameters += ', @StatisticsResample = ' + ISNULL('''' + REPLACE(@StatisticsResample,'''','''''') + '''','NULL')
  SET @Parameters += ', @PartitionLevel = ' + ISNULL('''' + REPLACE(@PartitionLevel,'''','''''') + '''','NULL')
  SET @Parameters += ', @MSShippedObjects = ' + ISNULL('''' + REPLACE(@MSShippedObjects,'''','''''') + '''','NULL')
  SET @Parameters += ', @Indexes = ' + ISNULL('''' + REPLACE(@Indexes,'''','''''') + '''','NULL')
  SET @Parameters += ', @TimeLimit = ' + ISNULL(CAST(@TimeLimit AS nvarchar),'NULL')
  SET @Parameters += ', @Delay = ' + ISNULL(CAST(@Delay AS nvarchar),'NULL')
  SET @Parameters += ', @WaitAtLowPriorityMaxDuration = ' + ISNULL(CAST(@WaitAtLowPriorityMaxDuration AS nvarchar),'NULL')
  SET @Parameters += ', @WaitAtLowPriorityAbortAfterWait = ' + ISNULL('''' + REPLACE(@WaitAtLowPriorityAbortAfterWait,'''','''''') + '''','NULL')
  SET @Parameters += ', @Resumable = ' + ISNULL('''' + REPLACE(@Resumable,'''','''''') + '''','NULL')
  SET @Parameters += ', @AvailabilityGroups = ' + ISNULL('''' + REPLACE(@AvailabilityGroups,'''','''''') + '''','NULL')
  SET @Parameters += ', @LockTimeout = ' + ISNULL(CAST(@LockTimeout AS nvarchar),'NULL')
  SET @Parameters += ', @LockMessageSeverity = ' + ISNULL(CAST(@LockMessageSeverity AS nvarchar),'NULL')
  SET @Parameters += ', @StringDelimiter = ' + ISNULL('''' + REPLACE(@StringDelimiter,'''','''''') + '''','NULL')
  SET @Parameters += ', @DatabaseOrder = ' + ISNULL('''' + REPLACE(@DatabaseOrder,'''','''''') + '''','NULL')
  SET @Parameters += ', @DatabasesInParallel = ' + ISNULL('''' + REPLACE(@DatabasesInParallel,'''','''''') + '''','NULL')
  SET @Parameters += ', @ExecuteAsUser = ' + ISNULL('''' + REPLACE(@ExecuteAsUser,'''','''''') + '''','NULL')
  SET @Parameters += ', @LogToTable = ' + ISNULL('''' + REPLACE(@LogToTable,'''','''''') + '''','NULL')
  SET @Parameters += ', @Execute = ' + ISNULL('''' + REPLACE(@Execute,'''','''''') + '''','NULL')

  SET @StartMessage = 'Date and time: ' + CONVERT(nvarchar,@StartTime,120)
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Server: ' + CAST(SERVERPROPERTY('ServerName') AS nvarchar(max))
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Version: ' + CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Edition: ' + CAST(SERVERPROPERTY('Edition') AS nvarchar(max))
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Platform: ' + @HostPlatform
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Procedure: ' + QUOTENAME(DB_NAME(DB_ID())) + '.' + QUOTENAME(@SchemaName) + '.' + QUOTENAME(@ObjectName)
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Parameters: ' + @Parameters
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Version: ' + @VersionTimestamp
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  SET @StartMessage = 'Source: https://ola.hallengren.com'
  RAISERROR('%s',10,1,@StartMessage) WITH NOWAIT

  RAISERROR(@EmptyLine,10,1) WITH NOWAIT

  ----------------------------------------------------------------------------------------------------
  --// Check core requirements                                                                    //--
  ----------------------------------------------------------------------------------------------------

  IF NOT (SELECT [compatibility_level] FROM sys.databases WHERE database_id = DB_ID()) >= 90
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The database ' + QUOTENAME(DB_NAME(DB_ID())) + ' has to be in compatibility level 90 or higher.', 16, 1
  END

  IF NOT (SELECT uses_ansi_nulls FROM sys.sql_modules WHERE [object_id] = @@PROCID) = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'ANSI_NULLS has to be set to ON for the stored procedure.', 16, 1
  END

  IF NOT (SELECT uses_quoted_identifier FROM sys.sql_modules WHERE [object_id] = @@PROCID) = 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'QUOTED_IDENTIFIER has to be set to ON for the stored procedure.', 16, 1
  END

  IF NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'P' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandExecute')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The stored procedure CommandExecute is missing. Download https://ola.hallengren.com/scripts/CommandExecute.sql.', 16, 1
  END

  IF EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'P' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandExecute' AND OBJECT_DEFINITION(objects.[object_id]) NOT LIKE '%@DatabaseContext%')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The stored procedure CommandExecute needs to be updated. Download https://ola.hallengren.com/scripts/CommandExecute.sql.', 16, 1
  END

  IF @LogToTable = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'CommandLog')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table CommandLog is missing. Download https://ola.hallengren.com/scripts/CommandLog.sql.', 16, 1
  END

  IF @DatabasesInParallel = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'Queue')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table Queue is missing. Download https://ola.hallengren.com/scripts/Queue.sql.', 16, 1
  END

  IF @DatabasesInParallel = 'Y' AND NOT EXISTS (SELECT * FROM sys.objects objects INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] = 'U' AND schemas.[name] = 'dbo' AND objects.[name] = 'QueueDatabase')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The table QueueDatabase is missing. Download https://ola.hallengren.com/scripts/QueueDatabase.sql.', 16, 1
  END

  IF @@TRANCOUNT <> 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The transaction count is not 0.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Select databases                                                                           //--
  ----------------------------------------------------------------------------------------------------

  SET @Databases = REPLACE(@Databases, CHAR(10), '')
  SET @Databases = REPLACE(@Databases, CHAR(13), '')

  WHILE CHARINDEX(@StringDelimiter + ' ', @Databases) > 0 SET @Databases = REPLACE(@Databases, @StringDelimiter + ' ', @StringDelimiter)
  WHILE CHARINDEX(' ' + @StringDelimiter, @Databases) > 0 SET @Databases = REPLACE(@Databases, ' ' + @StringDelimiter, @StringDelimiter)

  SET @Databases = LTRIM(RTRIM(@Databases));

  WITH Databases1 (StartPosition, EndPosition, DatabaseItem) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, 1), 0), LEN(@Databases) + 1) AS EndPosition,
         SUBSTRING(@Databases, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, 1), 0), LEN(@Databases) + 1) - 1) AS DatabaseItem
  WHERE @Databases IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, EndPosition + 1), 0), LEN(@Databases) + 1) AS EndPosition,
         SUBSTRING(@Databases, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Databases, EndPosition + 1), 0), LEN(@Databases) + 1) - EndPosition - 1) AS DatabaseItem
  FROM Databases1
  WHERE EndPosition < LEN(@Databases) + 1
  ),
  Databases2 (DatabaseItem, StartPosition, Selected) AS
  (
  SELECT CASE WHEN DatabaseItem LIKE '-%' THEN RIGHT(DatabaseItem,LEN(DatabaseItem) - 1) ELSE DatabaseItem END AS DatabaseItem,
         StartPosition,
         CASE WHEN DatabaseItem LIKE '-%' THEN 0 ELSE 1 END AS Selected
  FROM Databases1
  ),
  Databases3 (DatabaseItem, DatabaseType, AvailabilityGroup, StartPosition, Selected) AS
  (
  SELECT CASE WHEN DatabaseItem IN('ALL_DATABASES','SYSTEM_DATABASES','USER_DATABASES','AVAILABILITY_GROUP_DATABASES') THEN '%' ELSE DatabaseItem END AS DatabaseItem,
         CASE WHEN DatabaseItem = 'SYSTEM_DATABASES' THEN 'S' WHEN DatabaseItem = 'USER_DATABASES' THEN 'U' ELSE NULL END AS DatabaseType,
         CASE WHEN DatabaseItem = 'AVAILABILITY_GROUP_DATABASES' THEN 1 ELSE NULL END AvailabilityGroup,
         StartPosition,
         Selected
  FROM Databases2
  ),
  Databases4 (DatabaseName, DatabaseType, AvailabilityGroup, StartPosition, Selected) AS
  (
  SELECT CASE WHEN LEFT(DatabaseItem,1) = '[' AND RIGHT(DatabaseItem,1) = ']' THEN PARSENAME(DatabaseItem,1) ELSE DatabaseItem END AS DatabaseItem,
         DatabaseType,
         AvailabilityGroup,
         StartPosition,
         Selected
  FROM Databases3
  )
  INSERT INTO @SelectedDatabases (DatabaseName, DatabaseType, AvailabilityGroup, StartPosition, Selected)
  SELECT DatabaseName,
         DatabaseType,
         AvailabilityGroup,
         StartPosition,
         Selected
  FROM Databases4
  OPTION (MAXRECURSION 0)

  IF @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
  BEGIN
    INSERT INTO @tmpAvailabilityGroups (AvailabilityGroupName, Selected)
    SELECT name AS AvailabilityGroupName,
           0 AS Selected
    FROM sys.availability_groups

    INSERT INTO @tmpDatabasesAvailabilityGroups (DatabaseName, AvailabilityGroupName)
    SELECT databases.name,
           availability_groups.name
    FROM sys.databases databases
    INNER JOIN sys.availability_replicas availability_replicas ON databases.replica_id = availability_replicas.replica_id
    INNER JOIN sys.availability_groups availability_groups ON availability_replicas.group_id = availability_groups.group_id
  END

  INSERT INTO @tmpDatabases (DatabaseName, DatabaseType, AvailabilityGroup, [Order], Selected, Completed)
  SELECT [name] AS DatabaseName,
         CASE WHEN name IN('master','msdb','model') OR is_distributor = 1 THEN 'S' ELSE 'U' END AS DatabaseType,
         NULL AS AvailabilityGroup,
         0 AS [Order],
         0 AS Selected,
         0 AS Completed
  FROM sys.databases
  WHERE [name] <> 'tempdb'
  AND source_database_id IS NULL
  ORDER BY [name] ASC

  UPDATE tmpDatabases
  SET AvailabilityGroup = CASE WHEN EXISTS (SELECT * FROM @tmpDatabasesAvailabilityGroups WHERE DatabaseName = tmpDatabases.DatabaseName) THEN 1 ELSE 0 END
  FROM @tmpDatabases tmpDatabases

  UPDATE tmpDatabases
  SET tmpDatabases.Selected = SelectedDatabases.Selected
  FROM @tmpDatabases tmpDatabases
  INNER JOIN @SelectedDatabases SelectedDatabases
  ON tmpDatabases.DatabaseName LIKE REPLACE(SelectedDatabases.DatabaseName,'_','[_]')
  AND (tmpDatabases.DatabaseType = SelectedDatabases.DatabaseType OR SelectedDatabases.DatabaseType IS NULL)
  AND (tmpDatabases.AvailabilityGroup = SelectedDatabases.AvailabilityGroup OR SelectedDatabases.AvailabilityGroup IS NULL)
  WHERE SelectedDatabases.Selected = 1

  UPDATE tmpDatabases
  SET tmpDatabases.Selected = SelectedDatabases.Selected
  FROM @tmpDatabases tmpDatabases
  INNER JOIN @SelectedDatabases SelectedDatabases
  ON tmpDatabases.DatabaseName LIKE REPLACE(SelectedDatabases.DatabaseName,'_','[_]')
  AND (tmpDatabases.DatabaseType = SelectedDatabases.DatabaseType OR SelectedDatabases.DatabaseType IS NULL)
  AND (tmpDatabases.AvailabilityGroup = SelectedDatabases.AvailabilityGroup OR SelectedDatabases.AvailabilityGroup IS NULL)
  WHERE SelectedDatabases.Selected = 0

  UPDATE tmpDatabases
  SET tmpDatabases.StartPosition = SelectedDatabases2.StartPosition
  FROM @tmpDatabases tmpDatabases
  INNER JOIN (SELECT tmpDatabases.DatabaseName, MIN(SelectedDatabases.StartPosition) AS StartPosition
              FROM @tmpDatabases tmpDatabases
              INNER JOIN @SelectedDatabases SelectedDatabases
              ON tmpDatabases.DatabaseName LIKE REPLACE(SelectedDatabases.DatabaseName,'_','[_]')
              AND (tmpDatabases.DatabaseType = SelectedDatabases.DatabaseType OR SelectedDatabases.DatabaseType IS NULL)
              AND (tmpDatabases.AvailabilityGroup = SelectedDatabases.AvailabilityGroup OR SelectedDatabases.AvailabilityGroup IS NULL)
              WHERE SelectedDatabases.Selected = 1
              GROUP BY tmpDatabases.DatabaseName) SelectedDatabases2
  ON tmpDatabases.DatabaseName = SelectedDatabases2.DatabaseName

  IF @Databases IS NOT NULL AND (NOT EXISTS(SELECT * FROM @SelectedDatabases) OR EXISTS(SELECT * FROM @SelectedDatabases WHERE DatabaseName IS NULL OR DATALENGTH(DatabaseName) = 0))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Databases is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Select availability groups                                                                 //--
  ----------------------------------------------------------------------------------------------------

  IF @AvailabilityGroups IS NOT NULL AND @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
  BEGIN

    SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, CHAR(10), '')
    SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, CHAR(13), '')

    WHILE CHARINDEX(@StringDelimiter + ' ', @AvailabilityGroups) > 0 SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, @StringDelimiter + ' ', @StringDelimiter)
    WHILE CHARINDEX(' ' + @StringDelimiter, @AvailabilityGroups) > 0 SET @AvailabilityGroups = REPLACE(@AvailabilityGroups, ' ' + @StringDelimiter, @StringDelimiter)

    SET @AvailabilityGroups = LTRIM(RTRIM(@AvailabilityGroups));

    WITH AvailabilityGroups1 (StartPosition, EndPosition, AvailabilityGroupItem) AS
    (
    SELECT 1 AS StartPosition,
           ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, 1), 0), LEN(@AvailabilityGroups) + 1) AS EndPosition,
           SUBSTRING(@AvailabilityGroups, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, 1), 0), LEN(@AvailabilityGroups) + 1) - 1) AS AvailabilityGroupItem
    WHERE @AvailabilityGroups IS NOT NULL
    UNION ALL
    SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
           ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, EndPosition + 1), 0), LEN(@AvailabilityGroups) + 1) AS EndPosition,
           SUBSTRING(@AvailabilityGroups, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @AvailabilityGroups, EndPosition + 1), 0), LEN(@AvailabilityGroups) + 1) - EndPosition - 1) AS AvailabilityGroupItem
    FROM AvailabilityGroups1
    WHERE EndPosition < LEN(@AvailabilityGroups) + 1
    ),
    AvailabilityGroups2 (AvailabilityGroupItem, StartPosition, Selected) AS
    (
    SELECT CASE WHEN AvailabilityGroupItem LIKE '-%' THEN RIGHT(AvailabilityGroupItem,LEN(AvailabilityGroupItem) - 1) ELSE AvailabilityGroupItem END AS AvailabilityGroupItem,
           StartPosition,
           CASE WHEN AvailabilityGroupItem LIKE '-%' THEN 0 ELSE 1 END AS Selected
    FROM AvailabilityGroups1
    ),
    AvailabilityGroups3 (AvailabilityGroupItem, StartPosition, Selected) AS
    (
    SELECT CASE WHEN AvailabilityGroupItem = 'ALL_AVAILABILITY_GROUPS' THEN '%' ELSE AvailabilityGroupItem END AS AvailabilityGroupItem,
           StartPosition,
           Selected
    FROM AvailabilityGroups2
    ),
    AvailabilityGroups4 (AvailabilityGroupName, StartPosition, Selected) AS
    (
    SELECT CASE WHEN LEFT(AvailabilityGroupItem,1) = '[' AND RIGHT(AvailabilityGroupItem,1) = ']' THEN PARSENAME(AvailabilityGroupItem,1) ELSE AvailabilityGroupItem END AS AvailabilityGroupItem,
           StartPosition,
           Selected
    FROM AvailabilityGroups3
    )
    INSERT INTO @SelectedAvailabilityGroups (AvailabilityGroupName, StartPosition, Selected)
    SELECT AvailabilityGroupName, StartPosition, Selected
    FROM AvailabilityGroups4
    OPTION (MAXRECURSION 0)

    UPDATE tmpAvailabilityGroups
    SET tmpAvailabilityGroups.Selected = SelectedAvailabilityGroups.Selected
    FROM @tmpAvailabilityGroups tmpAvailabilityGroups
    INNER JOIN @SelectedAvailabilityGroups SelectedAvailabilityGroups
    ON tmpAvailabilityGroups.AvailabilityGroupName LIKE REPLACE(SelectedAvailabilityGroups.AvailabilityGroupName,'_','[_]')
    WHERE SelectedAvailabilityGroups.Selected = 1

    UPDATE tmpAvailabilityGroups
    SET tmpAvailabilityGroups.Selected = SelectedAvailabilityGroups.Selected
    FROM @tmpAvailabilityGroups tmpAvailabilityGroups
    INNER JOIN @SelectedAvailabilityGroups SelectedAvailabilityGroups
    ON tmpAvailabilityGroups.AvailabilityGroupName LIKE REPLACE(SelectedAvailabilityGroups.AvailabilityGroupName,'_','[_]')
    WHERE SelectedAvailabilityGroups.Selected = 0

    UPDATE tmpAvailabilityGroups
    SET tmpAvailabilityGroups.StartPosition = SelectedAvailabilityGroups2.StartPosition
    FROM @tmpAvailabilityGroups tmpAvailabilityGroups
    INNER JOIN (SELECT tmpAvailabilityGroups.AvailabilityGroupName, MIN(SelectedAvailabilityGroups.StartPosition) AS StartPosition
                FROM @tmpAvailabilityGroups tmpAvailabilityGroups
                INNER JOIN @SelectedAvailabilityGroups SelectedAvailabilityGroups
                ON tmpAvailabilityGroups.AvailabilityGroupName LIKE REPLACE(SelectedAvailabilityGroups.AvailabilityGroupName,'_','[_]')
                WHERE SelectedAvailabilityGroups.Selected = 1
                GROUP BY tmpAvailabilityGroups.AvailabilityGroupName) SelectedAvailabilityGroups2
    ON tmpAvailabilityGroups.AvailabilityGroupName = SelectedAvailabilityGroups2.AvailabilityGroupName

    UPDATE tmpDatabases
    SET tmpDatabases.StartPosition = tmpAvailabilityGroups.StartPosition,
        tmpDatabases.Selected = 1
    FROM @tmpDatabases tmpDatabases
    INNER JOIN @tmpDatabasesAvailabilityGroups tmpDatabasesAvailabilityGroups ON tmpDatabases.DatabaseName = tmpDatabasesAvailabilityGroups.DatabaseName
    INNER JOIN @tmpAvailabilityGroups tmpAvailabilityGroups ON tmpDatabasesAvailabilityGroups.AvailabilityGroupName = tmpAvailabilityGroups.AvailabilityGroupName
    WHERE tmpAvailabilityGroups.Selected = 1

  END

  IF @AvailabilityGroups IS NOT NULL AND (NOT EXISTS(SELECT * FROM @SelectedAvailabilityGroups) OR EXISTS(SELECT * FROM @SelectedAvailabilityGroups WHERE AvailabilityGroupName IS NULL OR AvailabilityGroupName = '') OR @Version < 11 OR SERVERPROPERTY('IsHadrEnabled') = 0)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @AvailabilityGroups is not supported.', 16, 1
  END

  IF (@Databases IS NULL AND @AvailabilityGroups IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'You need to specify one of the parameters @Databases and @AvailabilityGroups.', 16, 2
  END

  IF (@Databases IS NOT NULL AND @AvailabilityGroups IS NOT NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'You can only specify one of the parameters @Databases and @AvailabilityGroups.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------
  --// Select indexes                                                                             //--
  ----------------------------------------------------------------------------------------------------

  SET @Indexes = REPLACE(@Indexes, CHAR(10), '')
  SET @Indexes = REPLACE(@Indexes, CHAR(13), '')

  WHILE CHARINDEX(@StringDelimiter + ' ', @Indexes) > 0 SET @Indexes = REPLACE(@Indexes, @StringDelimiter + ' ', @StringDelimiter)
  WHILE CHARINDEX(' ' + @StringDelimiter, @Indexes) > 0 SET @Indexes = REPLACE(@Indexes, ' ' + @StringDelimiter, @StringDelimiter)

  SET @Indexes = LTRIM(RTRIM(@Indexes));

  WITH Indexes1 (StartPosition, EndPosition, IndexItem) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Indexes, 1), 0), LEN(@Indexes) + 1) AS EndPosition,
         SUBSTRING(@Indexes, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Indexes, 1), 0), LEN(@Indexes) + 1) - 1) AS IndexItem
  WHERE @Indexes IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Indexes, EndPosition + 1), 0), LEN(@Indexes) + 1) AS EndPosition,
         SUBSTRING(@Indexes, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @Indexes, EndPosition + 1), 0), LEN(@Indexes) + 1) - EndPosition - 1) AS IndexItem
  FROM Indexes1
  WHERE EndPosition < LEN(@Indexes) + 1
  ),
  Indexes2 (IndexItem, StartPosition, Selected) AS
  (
  SELECT CASE WHEN IndexItem LIKE '-%' THEN RIGHT(IndexItem,LEN(IndexItem) - 1) ELSE IndexItem END AS IndexItem,
         StartPosition,
         CASE WHEN IndexItem LIKE '-%' THEN 0 ELSE 1 END AS Selected
  FROM Indexes1
  ),
  Indexes3 (IndexItem, StartPosition, Selected) AS
  (
  SELECT CASE WHEN IndexItem = 'ALL_INDEXES' THEN '%.%.%.%' ELSE IndexItem END AS IndexItem,
         StartPosition,
         Selected
  FROM Indexes2
  ),
  Indexes4 (DatabaseName, SchemaName, ObjectName, IndexName, StartPosition, Selected) AS
  (
  SELECT CASE WHEN PARSENAME(IndexItem,4) IS NULL THEN PARSENAME(IndexItem,3) ELSE PARSENAME(IndexItem,4) END AS DatabaseName,
         CASE WHEN PARSENAME(IndexItem,4) IS NULL THEN PARSENAME(IndexItem,2) ELSE PARSENAME(IndexItem,3) END AS SchemaName,
         CASE WHEN PARSENAME(IndexItem,4) IS NULL THEN PARSENAME(IndexItem,1) ELSE PARSENAME(IndexItem,2) END AS ObjectName,
         CASE WHEN PARSENAME(IndexItem,4) IS NULL THEN '%' ELSE PARSENAME(IndexItem,1) END AS IndexName,
         StartPosition,
         Selected
  FROM Indexes3
  )
  INSERT INTO @SelectedIndexes (DatabaseName, SchemaName, ObjectName, IndexName, StartPosition, Selected)
  SELECT DatabaseName, SchemaName, ObjectName, IndexName, StartPosition, Selected
  FROM Indexes4
  OPTION (MAXRECURSION 0)

  ----------------------------------------------------------------------------------------------------
  --// Select actions                                                                             //--
  ----------------------------------------------------------------------------------------------------

  SET @FragmentationLow = REPLACE(@FragmentationLow, @StringDelimiter + ' ', @StringDelimiter);

  WITH FragmentationLow (StartPosition, EndPosition, [Action]) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationLow, 1), 0), LEN(@FragmentationLow) + 1) AS EndPosition,
         SUBSTRING(@FragmentationLow, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationLow, 1), 0), LEN(@FragmentationLow) + 1) - 1) AS [Action]
  WHERE @FragmentationLow IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationLow, EndPosition + 1), 0), LEN(@FragmentationLow) + 1) AS EndPosition,
         SUBSTRING(@FragmentationLow, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationLow, EndPosition + 1), 0), LEN(@FragmentationLow) + 1) - EndPosition - 1) AS [Action]
  FROM FragmentationLow
  WHERE EndPosition < LEN(@FragmentationLow) + 1
  )
  INSERT INTO @ActionsPreferred(FragmentationGroup, [Priority], [Action])
  SELECT 'Low' AS FragmentationGroup,
         ROW_NUMBER() OVER(ORDER BY StartPosition ASC) AS [Priority],
         [Action]
  FROM FragmentationLow
  OPTION (MAXRECURSION 0)

  SET @FragmentationMedium = REPLACE(@FragmentationMedium, @StringDelimiter + ' ', @StringDelimiter);

  WITH FragmentationMedium (StartPosition, EndPosition, [Action]) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationMedium, 1), 0), LEN(@FragmentationMedium) + 1) AS EndPosition,
         SUBSTRING(@FragmentationMedium, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationMedium, 1), 0), LEN(@FragmentationMedium) + 1) - 1) AS [Action]
  WHERE @FragmentationMedium IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationMedium, EndPosition + 1), 0), LEN(@FragmentationMedium) + 1) AS EndPosition,
         SUBSTRING(@FragmentationMedium, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationMedium, EndPosition + 1), 0), LEN(@FragmentationMedium) + 1) - EndPosition - 1) AS [Action]
  FROM FragmentationMedium
  WHERE EndPosition < LEN(@FragmentationMedium) + 1
  )
  INSERT INTO @ActionsPreferred(FragmentationGroup, [Priority], [Action])
  SELECT 'Medium' AS FragmentationGroup,
         ROW_NUMBER() OVER(ORDER BY StartPosition ASC) AS [Priority],
         [Action]
  FROM FragmentationMedium
  OPTION (MAXRECURSION 0)

  SET @FragmentationHigh = REPLACE(@FragmentationHigh, @StringDelimiter + ' ', @StringDelimiter);

  WITH FragmentationHigh (StartPosition, EndPosition, [Action]) AS
  (
  SELECT 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationHigh, 1), 0), LEN(@FragmentationHigh) + 1) AS EndPosition,
         SUBSTRING(@FragmentationHigh, 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationHigh, 1), 0), LEN(@FragmentationHigh) + 1) - 1) AS [Action]
  WHERE @FragmentationHigh IS NOT NULL
  UNION ALL
  SELECT CAST(EndPosition AS int) + 1 AS StartPosition,
         ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationHigh, EndPosition + 1), 0), LEN(@FragmentationHigh) + 1) AS EndPosition,
         SUBSTRING(@FragmentationHigh, EndPosition + 1, ISNULL(NULLIF(CHARINDEX(@StringDelimiter, @FragmentationHigh, EndPosition + 1), 0), LEN(@FragmentationHigh) + 1) - EndPosition - 1) AS [Action]
  FROM FragmentationHigh
  WHERE EndPosition < LEN(@FragmentationHigh) + 1
  )
  INSERT INTO @ActionsPreferred(FragmentationGroup, [Priority], [Action])
  SELECT 'High' AS FragmentationGroup,
         ROW_NUMBER() OVER(ORDER BY StartPosition ASC) AS [Priority],
         [Action]
  FROM FragmentationHigh
  OPTION (MAXRECURSION 0)

  ----------------------------------------------------------------------------------------------------
  --// Check input parameters                                                                     //--
  ----------------------------------------------------------------------------------------------------

  IF EXISTS (SELECT [Action] FROM @ActionsPreferred WHERE FragmentationGroup = 'Low' AND [Action] NOT IN(SELECT * FROM @Actions))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationLow is not supported.', 16, 1
  END

  IF EXISTS (SELECT * FROM @ActionsPreferred WHERE FragmentationGroup = 'Low' GROUP BY [Action] HAVING COUNT(*) > 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationLow is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS (SELECT [Action] FROM @ActionsPreferred WHERE FragmentationGroup = 'Medium' AND [Action] NOT IN(SELECT * FROM @Actions))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationMedium is not supported.', 16, 1
  END

  IF EXISTS (SELECT * FROM @ActionsPreferred WHERE FragmentationGroup = 'Medium' GROUP BY [Action] HAVING COUNT(*) > 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationMedium is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS (SELECT [Action] FROM @ActionsPreferred WHERE FragmentationGroup = 'High' AND [Action] NOT IN(SELECT * FROM @Actions))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationHigh is not supported.', 16, 1
  END

  IF EXISTS (SELECT * FROM @ActionsPreferred WHERE FragmentationGroup = 'High' GROUP BY [Action] HAVING COUNT(*) > 1)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationHigh is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @FragmentationLevel1 <= 0 OR @FragmentationLevel1 >= 100 OR @FragmentationLevel1 IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationLevel1 is not supported.', 16, 1
  END

  IF @FragmentationLevel1 >= @FragmentationLevel2
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationLevel1 is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @FragmentationLevel2 <= 0 OR @FragmentationLevel2 >= 100 OR @FragmentationLevel2 IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationLevel2 is not supported.', 16, 1
  END

  IF @FragmentationLevel2 <= @FragmentationLevel1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FragmentationLevel2 is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @MinNumberOfPages < 0 OR @MinNumberOfPages IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MinNumberOfPages is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @MaxNumberOfPages < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxNumberOfPages is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @SortInTempdb NOT IN('Y','N') OR @SortInTempdb IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @SortInTempdb is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @MaxDOP < 0 OR @MaxDOP > 64
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MaxDOP is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @FillFactor <= 0 OR @FillFactor > 100
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @FillFactor is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @PadIndex NOT IN('Y','N')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @PadIndex is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @LOBCompaction NOT IN('Y','N') OR @LOBCompaction IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LOBCompaction is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @UpdateStatistics NOT IN('ALL','COLUMNS','INDEX')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @UpdateStatistics is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @OnlyModifiedStatistics NOT IN('Y','N') OR @OnlyModifiedStatistics IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @OnlyModifiedStatistics is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @StatisticsModificationLevel <= 0 OR @StatisticsModificationLevel > 100
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @StatisticsModificationLevel is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @OnlyModifiedStatistics = 'Y' AND @StatisticsModificationLevel IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'You can only specify one of the parameters @OnlyModifiedStatistics and @StatisticsModificationLevel.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @StatisticsSample <= 0 OR @StatisticsSample  > 100
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @StatisticsSample is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @StatisticsResample NOT IN('Y','N') OR @StatisticsResample IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @StatisticsResample is not supported.', 16, 1
  END

  IF @StatisticsResample = 'Y' AND @StatisticsSample IS NOT NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @StatisticsResample is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @PartitionLevel NOT IN('Y','N') OR @PartitionLevel IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @PartitionLevel is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @MSShippedObjects NOT IN('Y','N') OR @MSShippedObjects IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @MSShippedObjects is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS(SELECT * FROM @SelectedIndexes WHERE DatabaseName IS NULL OR SchemaName IS NULL OR ObjectName IS NULL OR IndexName IS NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Indexes is not supported.', 16, 1
  END

  IF @Indexes IS NOT NULL AND NOT EXISTS(SELECT * FROM @SelectedIndexes)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Indexes is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @TimeLimit < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @TimeLimit is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Delay < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Delay is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @WaitAtLowPriorityMaxDuration < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @WaitAtLowPriorityMaxDuration is not supported.', 16, 1
  END

  IF @WaitAtLowPriorityMaxDuration IS NOT NULL AND @Version < 12
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @WaitAtLowPriorityMaxDuration is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @WaitAtLowPriorityAbortAfterWait NOT IN('NONE','SELF','BLOCKERS')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @WaitAtLowPriorityAbortAfterWait is not supported.', 16, 1
  END

  IF @WaitAtLowPriorityAbortAfterWait IS NOT NULL AND @Version < 12
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @WaitAtLowPriorityAbortAfterWait is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF (@WaitAtLowPriorityAbortAfterWait IS NOT NULL AND @WaitAtLowPriorityMaxDuration IS NULL) OR (@WaitAtLowPriorityAbortAfterWait IS NULL AND @WaitAtLowPriorityMaxDuration IS NOT NULL)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The parameters @WaitAtLowPriorityMaxDuration and @WaitAtLowPriorityAbortAfterWait can only be used together.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Resumable NOT IN('Y','N') OR @Resumable IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Resumable is not supported.', 16, 1
  END

  IF @Resumable = 'Y' AND NOT (@Version >= 14 OR SERVERPROPERTY('EngineEdition') IN (5, 8))
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Resumable is not supported.', 16, 2
  END

  IF @Resumable = 'Y' AND @SortInTempdb = 'Y'
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'You can only specify one of the parameters @Resumable and @SortInTempdb.', 16, 3
  END

  ----------------------------------------------------------------------------------------------------

  IF @LockTimeout < 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LockTimeout is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @LockMessageSeverity NOT IN(10, 16)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LockMessageSeverity is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @StringDelimiter IS NULL OR LEN(@StringDelimiter) > 1
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @StringDelimiter is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @DatabaseOrder NOT IN('DATABASE_NAME_ASC','DATABASE_NAME_DESC','DATABASE_SIZE_ASC','DATABASE_SIZE_DESC')
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported.', 16, 1
  END

  IF @DatabaseOrder IS NOT NULL AND SERVERPROPERTY('EngineEdition') = 5
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabaseOrder is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF @DatabasesInParallel NOT IN('Y','N') OR @DatabasesInParallel IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabasesInParallel is not supported.', 16, 1
  END

  IF @DatabasesInParallel = 'Y' AND SERVERPROPERTY('EngineEdition') = 5
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @DatabasesInParallel is not supported.', 16, 2
  END

  ----------------------------------------------------------------------------------------------------

  IF LEN(@ExecuteAsUser) > 128
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @ExecuteAsUser is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @LogToTable NOT IN('Y','N') OR @LogToTable IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @LogToTable is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF @Execute NOT IN('Y','N') OR @Execute IS NULL
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The value for the parameter @Execute is not supported.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------

  IF EXISTS(SELECT * FROM @Errors)
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The documentation is available at https://ola.hallengren.com/sql-server-index-and-statistics-maintenance.html.', 16, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Check that selected databases and availability groups exist                                //--
  ----------------------------------------------------------------------------------------------------

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @SelectedDatabases
  WHERE DatabaseName NOT LIKE '%[%]%'
  AND DatabaseName NOT IN (SELECT DatabaseName FROM @tmpDatabases)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following databases in the @Databases parameter do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @SelectedIndexes
  WHERE DatabaseName NOT LIKE '%[%]%'
  AND DatabaseName NOT IN (SELECT DatabaseName FROM @tmpDatabases)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following databases in the @Indexes parameter do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(AvailabilityGroupName) + ', '
  FROM @SelectedAvailabilityGroups
  WHERE AvailabilityGroupName NOT LIKE '%[%]%'
  AND AvailabilityGroupName NOT IN (SELECT AvailabilityGroupName FROM @tmpAvailabilityGroups)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following availability groups do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  SET @ErrorMessage = ''
  SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + ', '
  FROM @SelectedIndexes
  WHERE DatabaseName NOT LIKE '%[%]%'
  AND DatabaseName IN (SELECT DatabaseName FROM @tmpDatabases)
  AND DatabaseName NOT IN (SELECT DatabaseName FROM @tmpDatabases WHERE Selected = 1)
  IF @@ROWCOUNT > 0
  BEGIN
    INSERT INTO @Errors ([Message], Severity, [State])
    SELECT 'The following databases have been selected in the @Indexes parameter, but not in the @Databases or @AvailabilityGroups parameters: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.', 10, 1
  END

  ----------------------------------------------------------------------------------------------------
  --// Raise errors                                                                               //--
  ----------------------------------------------------------------------------------------------------

  DECLARE ErrorCursor CURSOR FAST_FORWARD FOR SELECT [Message], Severity, [State] FROM @Errors ORDER BY [ID] ASC

  OPEN ErrorCursor

  FETCH ErrorCursor INTO @CurrentMessage, @CurrentSeverity, @CurrentState

  WHILE @@FETCH_STATUS = 0
  BEGIN
    RAISERROR('%s', @CurrentSeverity, @CurrentState, @CurrentMessage) WITH NOWAIT
    RAISERROR(@EmptyLine, 10, 1) WITH NOWAIT

    FETCH NEXT FROM ErrorCursor INTO @CurrentMessage, @CurrentSeverity, @CurrentState
  END

  CLOSE ErrorCursor

  DEALLOCATE ErrorCursor

  IF EXISTS (SELECT * FROM @Errors WHERE Severity >= 16)
  BEGIN
    SET @ReturnCode = 50000
    GOTO Logging
  END

  ----------------------------------------------------------------------------------------------------
  --// Should statistics be updated on the partition level?                                       //--
  ----------------------------------------------------------------------------------------------------

  SET @PartitionLevelStatistics = CASE WHEN @PartitionLevel = 'Y' AND ((@Version >= 12.05 AND @Version < 13) OR @Version >= 13.04422 OR SERVERPROPERTY('EngineEdition') IN (5,8)) THEN 1 ELSE 0 END

  ----------------------------------------------------------------------------------------------------
  --// Update database order                                                                      //--
  ----------------------------------------------------------------------------------------------------

  IF @DatabaseOrder IN('DATABASE_SIZE_ASC','DATABASE_SIZE_DESC')
  BEGIN
    UPDATE tmpDatabases
    SET DatabaseSize = (SELECT SUM(CAST(size AS bigint)) FROM sys.master_files WHERE [type] = 0 AND database_id = DB_ID(tmpDatabases.DatabaseName))
    FROM @tmpDatabases tmpDatabases
  END

  IF @DatabaseOrder IS NULL
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY StartPosition ASC, DatabaseName ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_NAME_ASC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseName ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_NAME_DESC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseName DESC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_SIZE_ASC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseSize ASC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END
  ELSE
  IF @DatabaseOrder = 'DATABASE_SIZE_DESC'
  BEGIN
    WITH tmpDatabases AS (
    SELECT DatabaseName, [Order], ROW_NUMBER() OVER (ORDER BY DatabaseSize DESC) AS RowNumber
    FROM @tmpDatabases tmpDatabases
    WHERE Selected = 1
    )
    UPDATE tmpDatabases
    SET [Order] = RowNumber
  END

  ----------------------------------------------------------------------------------------------------
  --// Update the queue                                                                           //--
  ----------------------------------------------------------------------------------------------------

  IF @DatabasesInParallel = 'Y'
  BEGIN

    BEGIN TRY

      SELECT @QueueID = QueueID
      FROM dbo.[Queue]
      WHERE SchemaName = @SchemaName
      AND ObjectName = @ObjectName
      AND [Parameters] = @Parameters

      IF @QueueID IS NULL
      BEGIN
        BEGIN TRANSACTION

        SELECT @QueueID = QueueID
        FROM dbo.[Queue] WITH (UPDLOCK, HOLDLOCK)
        WHERE SchemaName = @SchemaName
        AND ObjectName = @ObjectName
        AND [Parameters] = @Parameters

        IF @QueueID IS NULL
        BEGIN
          INSERT INTO dbo.[Queue] (SchemaName, ObjectName, [Parameters])
          SELECT @SchemaName, @ObjectName, @Parameters

          SET @QueueID = SCOPE_IDENTITY()
        END

        COMMIT TRANSACTION
      END

      BEGIN TRANSACTION

      UPDATE [Queue]
      SET QueueStartTime = SYSDATETIME(),
          SessionID = @@SPID,
          RequestID = (SELECT request_id FROM sys.dm_exec_requests WHERE session_id = @@SPID),
          RequestStartTime = (SELECT start_time FROM sys.dm_exec_requests WHERE session_id = @@SPID)
      FROM dbo.[Queue] [Queue]
      WHERE QueueID = @QueueID
      AND NOT EXISTS (SELECT *
                      FROM sys.dm_exec_requests
                      WHERE session_id = [Queue].SessionID
                      AND request_id = [Queue].RequestID
                      AND start_time = [Queue].RequestStartTime)
      AND NOT EXISTS (SELECT *
                      FROM dbo.QueueDatabase QueueDatabase
                      INNER JOIN sys.dm_exec_requests ON QueueDatabase.SessionID = session_id AND QueueDatabase.RequestID = request_id AND QueueDatabase.RequestStartTime = start_time
                      WHERE QueueDatabase.QueueID = @QueueID)

      IF @@ROWCOUNT = 1
      BEGIN
        INSERT INTO dbo.QueueDatabase (QueueID, DatabaseName)
        SELECT @QueueID AS QueueID,
               DatabaseName
        FROM @tmpDatabases tmpDatabases
        WHERE Selected = 1
        AND NOT EXISTS (SELECT * FROM dbo.QueueDatabase WHERE DatabaseName = tmpDatabases.DatabaseName AND QueueID = @QueueID)

        DELETE QueueDatabase
        FROM dbo.QueueDatabase QueueDatabase
        WHERE QueueID = @QueueID
        AND NOT EXISTS (SELECT * FROM @tmpDatabases tmpDatabases WHERE DatabaseName = QueueDatabase.DatabaseName AND Selected = 1)

        UPDATE QueueDatabase
        SET DatabaseOrder = tmpDatabases.[Order]
        FROM dbo.QueueDatabase QueueDatabase
        INNER JOIN @tmpDatabases tmpDatabases ON QueueDatabase.DatabaseName = tmpDatabases.DatabaseName
        WHERE QueueID = @QueueID
      END

      COMMIT TRANSACTION

      SELECT @QueueStartTime = QueueStartTime
      FROM dbo.[Queue]
      WHERE QueueID = @QueueID

    END TRY

    BEGIN CATCH
      IF XACT_STATE() <> 0
      BEGIN
        ROLLBACK TRANSACTION
      END
      SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'')
      RAISERROR('%s',16,1,@ErrorMessage) WITH NOWAIT
      RAISERROR(@EmptyLine,10,1) WITH NOWAIT
      SET @ReturnCode = ERROR_NUMBER()
      GOTO Logging
    END CATCH

  END

  ----------------------------------------------------------------------------------------------------
  --// Execute commands                                                                           //--
  ----------------------------------------------------------------------------------------------------

  WHILE (1 = 1)
  BEGIN

    IF @DatabasesInParallel = 'Y'
    BEGIN
      UPDATE QueueDatabase
      SET DatabaseStartTime = NULL,
          SessionID = NULL,
          RequestID = NULL,
          RequestStartTime = NULL
      FROM dbo.QueueDatabase QueueDatabase
      WHERE QueueID = @QueueID
      AND DatabaseStartTime IS NOT NULL
      AND DatabaseEndTime IS NULL
      AND NOT EXISTS (SELECT * FROM sys.dm_exec_requests WHERE session_id = QueueDatabase.SessionID AND request_id = QueueDatabase.RequestID AND start_time = QueueDatabase.RequestStartTime)

      UPDATE QueueDatabase
      SET DatabaseStartTime = SYSDATETIME(),
          DatabaseEndTime = NULL,
          SessionID = @@SPID,
          RequestID = (SELECT request_id FROM sys.dm_exec_requests WHERE session_id = @@SPID),
          RequestStartTime = (SELECT start_time FROM sys.dm_exec_requests WHERE session_id = @@SPID),
          @CurrentDatabaseName = DatabaseName
      FROM (SELECT TOP 1 DatabaseStartTime,
                         DatabaseEndTime,
                         SessionID,
                         RequestID,
                         RequestStartTime,
                         DatabaseName
            FROM dbo.QueueDatabase
            WHERE QueueID = @QueueID
            AND (DatabaseStartTime < @QueueStartTime OR DatabaseStartTime IS NULL)
            AND NOT (DatabaseStartTime IS NOT NULL AND DatabaseEndTime IS NULL)
            ORDER BY DatabaseOrder ASC
            ) QueueDatabase
    END
    ELSE
    BEGIN
      SELECT TOP 1 @CurrentDBID = ID,
                   @CurrentDatabaseName = DatabaseName
      FROM @tmpDatabases
      WHERE Selected = 1
      AND Completed = 0
      ORDER BY [Order] ASC
    END

    IF @@ROWCOUNT = 0
    BEGIN
      BREAK
    END

    SET @CurrentDatabase_sp_executesql = QUOTENAME(@CurrentDatabaseName) + '.sys.sp_executesql'

    IF @ExecuteAsUser IS NOT NULL
    BEGIN
      SET @CurrentCommand = ''
      SET @CurrentCommand += 'IF EXISTS(SELECT * FROM sys.database_principals database_principals WHERE database_principals.[name] = @ParamExecuteAsUser) BEGIN SET @ParamExecuteAsUserExists = 1 END ELSE BEGIN SET @ParamExecuteAsUserExists = 0 END'

      EXECUTE @CurrentDatabase_sp_executesql @stmt = @CurrentCommand, @params = N'@ParamExecuteAsUser sysname, @ParamExecuteAsUserExists bit OUTPUT', @ParamExecuteAsUser = @ExecuteAsUser, @ParamExecuteAsUserExists = @CurrentExecuteAsUserExists OUTPUT
    END

    BEGIN
      SET @DatabaseMessage = 'Date and time: ' + CONVERT(nvarchar,SYSDATETIME(),120)
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Database: ' + QUOTENAME(@CurrentDatabaseName)
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    SELECT @CurrentUserAccess = user_access_desc,
           @CurrentIsReadOnly = is_read_only,
           @CurrentDatabaseState = state_desc,
           @CurrentInStandby = is_in_standby,
           @CurrentRecoveryModel = recovery_model_desc
    FROM sys.databases
    WHERE [name] = @CurrentDatabaseName

    BEGIN
      SET @DatabaseMessage = 'State: ' + @CurrentDatabaseState
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Standby: ' + CASE WHEN @CurrentInStandby = 1 THEN 'Yes' ELSE 'No' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Updateability: ' + CASE WHEN @CurrentIsReadOnly = 1 THEN 'READ_ONLY' WHEN  @CurrentIsReadOnly = 0 THEN 'READ_WRITE' END
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'User access: ' + @CurrentUserAccess
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Recovery model: ' + @CurrentRecoveryModel
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    IF @Version >= 11 AND SERVERPROPERTY('IsHadrEnabled') = 1
    BEGIN
      SELECT @CurrentReplicaID = databases.replica_id
      FROM sys.databases databases
      INNER JOIN sys.availability_replicas availability_replicas ON databases.replica_id = availability_replicas.replica_id
      WHERE databases.[name] = @CurrentDatabaseName

      SELECT @CurrentAvailabilityGroupID = group_id
      FROM sys.availability_replicas
      WHERE replica_id = @CurrentReplicaID

      SELECT @CurrentAvailabilityGroupRole = role_desc
      FROM sys.dm_hadr_availability_replica_states
      WHERE replica_id = @CurrentReplicaID

      SELECT @CurrentAvailabilityGroup = [name]
      FROM sys.availability_groups
      WHERE group_id = @CurrentAvailabilityGroupID
    END

    IF SERVERPROPERTY('EngineEdition') <> 5
    BEGIN
      SELECT @CurrentDatabaseMirroringRole = UPPER(mirroring_role_desc)
      FROM sys.database_mirroring
      WHERE database_id = DB_ID(@CurrentDatabaseName)
    END

    IF @CurrentAvailabilityGroup IS NOT NULL
    BEGIN
      SET @DatabaseMessage = 'Availability group: ' + ISNULL(@CurrentAvailabilityGroup,'N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT

      SET @DatabaseMessage = 'Availability group role: ' + ISNULL(@CurrentAvailabilityGroupRole,'N/A')
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    IF @CurrentDatabaseMirroringRole IS NOT NULL
    BEGIN
      SET @DatabaseMessage = 'Database mirroring role: ' + @CurrentDatabaseMirroringRole
      RAISERROR('%s',10,1,@DatabaseMessage) WITH NOWAIT
    END

    RAISERROR(@EmptyLine,10,1) WITH NOWAIT

    IF @CurrentExecuteAsUserExists = 0
    BEGIN
      SET @DatabaseMessage = 'The user ' + QUOTENAME(@ExecuteAsUser) + ' does not exist in the database ' + QUOTENAME(@CurrentDatabaseName) + '.'
      RAISERROR('%s',16,1,@DatabaseMessage) WITH NOWAIT
      RAISERROR(@EmptyLine,10,1) WITH NOWAIT
    END

    IF @CurrentDatabaseState = 'ONLINE'
    AND NOT (@CurrentUserAccess = 'SINGLE_USER')
    AND NOT (@CurrentAvailabilityGroup IS NOT NULL AND (@CurrentAvailabilityGroupRole <> 'PRIMARY' OR @CurrentAvailabilityGroupRole IS NULL))
    AND NOT (@CurrentIsReadOnly = 1)
    AND (@CurrentExecuteAsUserExists = 1 OR @CurrentExecuteAsUserExists IS NULL)
    BEGIN

      -- Select indexes in the current database
      IF (EXISTS(SELECT * FROM @ActionsPreferred) OR @UpdateStatistics IS NOT NULL) AND (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
      BEGIN
        SET @CurrentCommand = 'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;'
                              + ' SELECT SchemaID, SchemaName, ObjectID, ObjectName, ObjectType, IsMemoryOptimized, IndexID, IndexName, IndexType, AllowPageLocks, HasFilter, IsImageText, IsNewLOB, IsFileStream, IsColumnStore, IsComputed, IsClusteredIndexComputed, IsTimestamp, OnReadOnlyFileGroup, ResumableIndexOperation, StatisticsID, StatisticsName, NoRecompute, IsIncremental, PartitionID, PartitionNumber, PartitionCount, [Order], Selected, Completed'
                              + ' FROM ('

        IF EXISTS(SELECT * FROM @ActionsPreferred) OR @UpdateStatistics IN('ALL','INDEX')
        BEGIN
          SET @CurrentCommand = @CurrentCommand + 'SELECT schemas.[schema_id] AS SchemaID'
                                                    + ', schemas.[name] AS SchemaName'
                                                    + ', objects.[object_id] AS ObjectID'
                                                    + ', objects.[name] AS ObjectName'
                                                    + ', RTRIM(objects.[type]) AS ObjectType'
                                                    + ', ' + CASE WHEN @Version >= 12 THEN 'tables.is_memory_optimized' ELSE '0' END + ' AS IsMemoryOptimized'
                                                    + ', indexes.index_id AS IndexID'
                                                    + ', indexes.[name] AS IndexName'
                                                    + ', indexes.[type] AS IndexType'
                                                    + ', indexes.allow_page_locks AS AllowPageLocks'
                                                    + ', indexes.has_filter AS HasFilter'

                                                    + ', CASE WHEN indexes.[type] = 1 AND EXISTS(SELECT * FROM sys.columns columns INNER JOIN sys.types types ON columns.system_type_id = types.user_type_id WHERE columns.[object_id] = objects.object_id AND types.name IN(''image'',''text'',''ntext'')) THEN 1 ELSE 0 END AS IsImageText'

                                                    + ', CASE WHEN indexes.[type] = 1 AND EXISTS(SELECT * FROM sys.columns columns INNER JOIN sys.types types ON columns.system_type_id = types.user_type_id OR (columns.user_type_id = types.user_type_id AND types.is_assembly_type = 1) WHERE columns.[object_id] = objects.object_id AND (types.name IN(''xml'') OR (types.name IN(''varchar'',''nvarchar'',''varbinary'') AND columns.max_length = -1) OR (types.is_assembly_type = 1 AND columns.max_length = -1))) THEN 1'
                                                    + ' WHEN indexes.[type] = 2 AND EXISTS(SELECT * FROM sys.index_columns index_columns INNER JOIN sys.columns columns ON index_columns.[object_id] = columns.[object_id] AND index_columns.column_id = columns.column_id INNER JOIN sys.types types ON columns.system_type_id = types.user_type_id OR (columns.user_type_id = types.user_type_id AND types.is_assembly_type = 1) WHERE index_columns.[object_id] = objects.object_id AND index_columns.index_id = indexes.index_id AND (types.[name] IN(''xml'') OR (types.[name] IN(''varchar'',''nvarchar'',''varbinary'') AND columns.max_length = -1) OR (types.is_assembly_type = 1 AND columns.max_length = -1))) THEN 1 ELSE 0 END AS IsNewLOB'

                                                    + ', CASE WHEN indexes.[type] = 1 AND EXISTS(SELECT * FROM sys.columns columns WHERE columns.[object_id] = objects.object_id  AND columns.is_filestream = 1) THEN 1 ELSE 0 END AS IsFileStream'

                                                    + ', CASE WHEN EXISTS(SELECT * FROM sys.indexes indexes WHERE indexes.[object_id] = objects.object_id AND [type] IN(5,6)) THEN 1 ELSE 0 END AS IsColumnStore'

                                                    + ', CASE WHEN EXISTS(SELECT * FROM sys.index_columns index_columns INNER JOIN sys.columns columns ON index_columns.object_id = columns.object_id AND index_columns.column_id = columns.column_id WHERE (index_columns.key_ordinal > 0 OR index_columns.partition_ordinal > 0) AND columns.is_computed = 1 AND index_columns.object_id = indexes.object_id AND index_columns.index_id = indexes.index_id) THEN 1 ELSE 0 END AS IsComputed'

                                                    + ', CASE WHEN EXISTS(SELECT * FROM sys.index_columns index_columns INNER JOIN sys.columns columns ON index_columns.object_id = columns.object_id AND index_columns.column_id = columns.column_id INNER JOIN sys.indexes indexes2 ON index_columns.object_id = indexes2.object_id AND index_columns.index_id = indexes2.index_id WHERE (index_columns.key_ordinal > 0 OR index_columns.partition_ordinal > 0) AND columns.is_computed = 1 AND indexes2.[type] = 1 AND index_columns.object_id = indexes.object_id) THEN 1 ELSE 0 END AS IsClusteredIndexComputed'

                                                    + ', CASE WHEN EXISTS(SELECT * FROM sys.index_columns index_columns INNER JOIN sys.columns columns ON index_columns.[object_id] = columns.[object_id] AND index_columns.column_id = columns.column_id INNER JOIN sys.types types ON columns.system_type_id = types.system_type_id WHERE index_columns.[object_id] = objects.object_id AND index_columns.index_id = indexes.index_id AND types.[name] = ''timestamp'') THEN 1 ELSE 0 END AS IsTimestamp'

                                                    + ', CASE WHEN EXISTS (SELECT * FROM sys.indexes indexes2 INNER JOIN sys.destination_data_spaces destination_data_spaces ON indexes.data_space_id = destination_data_spaces.partition_scheme_id INNER JOIN sys.filegroups filegroups ON destination_data_spaces.data_space_id = filegroups.data_space_id WHERE filegroups.is_read_only = 1 AND indexes2.[object_id] = indexes.[object_id] AND indexes2.[index_id] = indexes.index_id' + CASE WHEN @PartitionLevel = 'Y' THEN ' AND destination_data_spaces.destination_id = partitions.partition_number' ELSE '' END + ') THEN 1'
                                                    + ' WHEN EXISTS (SELECT * FROM sys.indexes indexes2 INNER JOIN sys.filegroups filegroups ON indexes.data_space_id = filegroups.data_space_id WHERE filegroups.is_read_only = 1 AND indexes.[object_id] = indexes2.[object_id] AND indexes.[index_id] = indexes2.index_id) THEN 1'
                                                    + ' WHEN indexes.[type] = 1 AND EXISTS (SELECT * FROM sys.tables tables INNER JOIN sys.filegroups filegroups ON tables.lob_data_space_id = filegroups.data_space_id WHERE filegroups.is_read_only = 1 AND tables.[object_id] = objects.[object_id]) THEN 1 ELSE 0 END AS OnReadOnlyFileGroup'

                                                    + ', ' + CASE WHEN @Version >= 14 THEN 'CASE WHEN EXISTS(SELECT * FROM sys.index_resumable_operations index_resumable_operations WHERE state_desc = ''PAUSED'' AND index_resumable_operations.object_id = indexes.object_id AND index_resumable_operations.index_id = indexes.index_id' + CASE WHEN @PartitionLevel = 'Y' THEN ' AND (index_resumable_operations.partition_number = partitions.partition_number OR index_resumable_operations.partition_number IS NULL)' ELSE '' END + ') THEN 1 ELSE 0 END' ELSE '0' END + ' AS ResumableIndexOperation'

                                                    + ', stats.stats_id AS StatisticsID'
                                                    + ', stats.name AS StatisticsName'
                                                    + ', stats.no_recompute AS NoRecompute'
                                                    + ', ' + CASE WHEN @Version >= 12 THEN 'stats.is_incremental' ELSE '0' END + ' AS IsIncremental'
                                                    + ', ' + CASE WHEN @PartitionLevel = 'Y' THEN 'partitions.partition_id AS PartitionID' WHEN @PartitionLevel = 'N' THEN 'NULL AS PartitionID' END
                                                    + ', ' + CASE WHEN @PartitionLevel = 'Y' THEN 'partitions.partition_number AS PartitionNumber' WHEN @PartitionLevel = 'N' THEN 'NULL AS PartitionNumber' END
                                                    + ', ' + CASE WHEN @PartitionLevel = 'Y' THEN 'IndexPartitions.partition_count AS PartitionCount' WHEN @PartitionLevel = 'N' THEN 'NULL AS PartitionCount' END
                                                    + ', 0 AS [Order]'
                                                    + ', 0 AS Selected'
                                                    + ', 0 AS Completed'
                                                    + ' FROM sys.indexes indexes'
                                                    + ' INNER JOIN sys.objects objects ON indexes.[object_id] = objects.[object_id]'
                                                    + ' INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id]'
                                                    + ' LEFT OUTER JOIN sys.tables tables ON objects.[object_id] = tables.[object_id]'
                                                    + ' LEFT OUTER JOIN sys.stats stats ON indexes.[object_id] = stats.[object_id] AND indexes.[index_id] = stats.[stats_id]'
          IF @PartitionLevel = 'Y'
          BEGIN
            SET @CurrentCommand = @CurrentCommand + ' LEFT OUTER JOIN sys.partitions partitions ON indexes.[object_id] = partitions.[object_id] AND indexes.index_id = partitions.index_id'
                                                      + ' LEFT OUTER JOIN (SELECT partitions.[object_id], partitions.index_id, COUNT(DISTINCT partitions.partition_number) AS partition_count FROM sys.partitions partitions GROUP BY partitions.[object_id], partitions.index_id) IndexPartitions ON partitions.[object_id] = IndexPartitions.[object_id] AND partitions.[index_id] = IndexPartitions.[index_id]'
          END

          SET @CurrentCommand = @CurrentCommand + ' WHERE objects.[type] IN(''U'',''V'')'
                                                    + CASE WHEN @MSShippedObjects = 'N' THEN ' AND objects.is_ms_shipped = 0' ELSE '' END
                                                    + ' AND indexes.[type] IN(1,2,3,4,5,6,7)'
                                                    + ' AND indexes.is_disabled = 0 AND indexes.is_hypothetical = 0'
        END

        IF (EXISTS(SELECT * FROM @ActionsPreferred) AND @UpdateStatistics = 'COLUMNS') OR @UpdateStatistics = 'ALL'
        BEGIN
          SET @CurrentCommand = @CurrentCommand + ' UNION '
        END

        IF @UpdateStatistics IN('ALL','COLUMNS')
        BEGIN
          SET @CurrentCommand = @CurrentCommand + 'SELECT schemas.[schema_id] AS SchemaID'
                                                    + ', schemas.[name] AS SchemaName'
                                                    + ', objects.[object_id] AS ObjectID'
                                                    + ', objects.[name] AS ObjectName'
                                                    + ', RTRIM(objects.[type]) AS ObjectType'
                                                    + ', ' + CASE WHEN @Version >= 12 THEN 'tables.is_memory_optimized' ELSE '0' END + ' AS IsMemoryOptimized'
                                                    + ', NULL AS IndexID, NULL AS IndexName'
                                                    + ', NULL AS IndexType'
                                                    + ', NULL AS AllowPageLocks'
                                                    + ', NULL AS HasFilter'
                                                    + ', NULL AS IsImageText'
                                                    + ', NULL AS IsNewLOB'
                                                    + ', NULL AS IsFileStream'
                                                    + ', NULL AS IsColumnStore'
                                                    + ', NULL AS IsComputed'
                                                    + ', NULL AS IsClusteredIndexComputed'
                                                    + ', NULL AS IsTimestamp'
                                                    + ', NULL AS OnReadOnlyFileGroup'
                                                    + ', NULL AS ResumableIndexOperation'
                                                    + ', stats.stats_id AS StatisticsID'
                                                    + ', stats.name AS StatisticsName'
                                                    + ', stats.no_recompute AS NoRecompute'
                                                    + ', ' + CASE WHEN @Version >= 12 THEN 'stats.is_incremental' ELSE '0' END + ' AS IsIncremental'
                                                    + ', NULL AS PartitionID'
                                                    + ', ' + CASE WHEN @PartitionLevelStatistics = 1 THEN 'dm_db_incremental_stats_properties.partition_number' ELSE 'NULL' END + ' AS PartitionNumber'
                                                    + ', NULL AS PartitionCount'
                                                    + ', 0 AS [Order]'
                                                    + ', 0 AS Selected'
                                                    + ', 0 AS Completed'
                                                    + ' FROM sys.stats stats'
                                                    + ' INNER JOIN sys.objects objects ON stats.[object_id] = objects.[object_id]'
                                                    + ' INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id]'
                                                    + ' LEFT OUTER JOIN sys.tables tables ON objects.[object_id] = tables.[object_id]'

          IF @PartitionLevelStatistics = 1
          BEGIN
            SET @CurrentCommand = @CurrentCommand + ' OUTER APPLY sys.dm_db_incremental_stats_properties(stats.object_id, stats.stats_id) dm_db_incremental_stats_properties'
          END

          SET @CurrentCommand = @CurrentCommand + ' WHERE objects.[type] IN(''U'',''V'')'
                                                    + CASE WHEN @Version >= 12 THEN ' AND (tables.is_memory_optimized = 0 OR tables.is_memory_optimized IS NULL)' ELSE '' END
                                                    + CASE WHEN @MSShippedObjects = 'N' THEN ' AND objects.is_ms_shipped = 0' ELSE '' END
                                                    + ' AND NOT EXISTS(SELECT * FROM sys.indexes indexes WHERE indexes.[object_id] = stats.[object_id] AND indexes.index_id = stats.stats_id)'

          IF @Version >= 12
          BEGIN
            SET @CurrentCommand = @CurrentCommand + ' UNION '

            SET @CurrentCommand = @CurrentCommand + 'SELECT schemas.[schema_id] AS SchemaID'
                                                      + ', schemas.[name] AS SchemaName'
                                                      + ', objects.[object_id] AS ObjectID'
                                                      + ', objects.[name] AS ObjectName'
                                                      + ', RTRIM(objects.[type]) AS ObjectType'
                                                      + ', tables.is_memory_optimized AS IsMemoryOptimized'
                                                      + ', NULL AS IndexID, NULL AS IndexName'
                                                      + ', NULL AS IndexType'
                                                      + ', NULL AS AllowPageLocks'
                                                      + ', NULL AS HasFilter'
                                                      + ', NULL AS IsImageText'
                                                      + ', NULL AS IsNewLOB'
                                                      + ', NULL AS IsFileStream'
                                                      + ', NULL AS IsColumnStore'
                                                      + ', NULL AS IsComputed'
                                                      + ', NULL AS IsClusteredIndexComputed'
                                                      + ', NULL AS IsTimestamp'
                                                      + ', NULL AS OnReadOnlyFileGroup'
                                                      + ', NULL AS ResumableIndexOperation'
                                                      + ', stats.stats_id AS StatisticsID'
                                                      + ', stats.name AS StatisticsName'
                                                      + ', stats.no_recompute AS NoRecompute'
                                                      + ', ' + CASE WHEN @Version >= 12 THEN 'stats.is_incremental' ELSE '0' END + ' AS IsIncremental'
                                                      + ', NULL AS PartitionID'
                                                      + ', NULL AS PartitionNumber'
                                                      + ', NULL AS PartitionCount'
                                                      + ', 0 AS [Order]'
                                                      + ', 0 AS Selected'
                                                      + ', 0 AS Completed'
                                                      + ' FROM sys.stats stats'
                                                      + ' INNER JOIN sys.objects objects ON stats.[object_id] = objects.[object_id]'
                                                      + ' INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id]'
                                                      + ' INNER JOIN sys.tables tables ON objects.[object_id] = tables.[object_id]'

            SET @CurrentCommand = @CurrentCommand + ' WHERE objects.[type] = ''U'''
                                                      + ' AND tables.is_memory_optimized = 1'
                                                      + CASE WHEN @MSShippedObjects = 'N' THEN ' AND objects.is_ms_shipped = 0' ELSE '' END
                                                      + ' AND NOT EXISTS(SELECT * FROM sys.indexes indexes WHERE indexes.[object_id] = stats.[object_id] AND indexes.index_id = stats.stats_id)'
          END
        END

        SET @CurrentCommand = @CurrentCommand + ') IndexesStatistics'

        INSERT INTO @tmpIndexesStatistics (SchemaID, SchemaName, ObjectID, ObjectName, ObjectType, IsMemoryOptimized, IndexID, IndexName, IndexType, AllowPageLocks, HasFilter, IsImageText, IsNewLOB, IsFileStream, IsColumnStore, IsComputed, IsClusteredIndexComputed, IsTimestamp, OnReadOnlyFileGroup, ResumableIndexOperation, StatisticsID, StatisticsName, [NoRecompute], IsIncremental, PartitionID, PartitionNumber, PartitionCount, [Order], Selected, Completed)
        EXECUTE @CurrentDatabase_sp_executesql @stmt = @CurrentCommand
        SET @Error = @@ERROR
        IF @Error <> 0
        BEGIN
          SET @ReturnCode = @Error
        END
      END

      IF @Indexes IS NULL
      BEGIN
        UPDATE tmpIndexesStatistics
        SET tmpIndexesStatistics.Selected = 1
        FROM @tmpIndexesStatistics tmpIndexesStatistics
      END
      ELSE
      BEGIN
        UPDATE tmpIndexesStatistics
        SET tmpIndexesStatistics.Selected = SelectedIndexes.Selected
        FROM @tmpIndexesStatistics tmpIndexesStatistics
        INNER JOIN @SelectedIndexes SelectedIndexes
        ON @CurrentDatabaseName LIKE REPLACE(SelectedIndexes.DatabaseName,'_','[_]') AND tmpIndexesStatistics.SchemaName LIKE REPLACE(SelectedIndexes.SchemaName,'_','[_]') AND tmpIndexesStatistics.ObjectName LIKE REPLACE(SelectedIndexes.ObjectName,'_','[_]') AND COALESCE(tmpIndexesStatistics.IndexName,tmpIndexesStatistics.StatisticsName) LIKE REPLACE(SelectedIndexes.IndexName,'_','[_]')
        WHERE SelectedIndexes.Selected = 1

        UPDATE tmpIndexesStatistics
        SET tmpIndexesStatistics.Selected = SelectedIndexes.Selected
        FROM @tmpIndexesStatistics tmpIndexesStatistics
        INNER JOIN @SelectedIndexes SelectedIndexes
        ON @CurrentDatabaseName LIKE REPLACE(SelectedIndexes.DatabaseName,'_','[_]') AND tmpIndexesStatistics.SchemaName LIKE REPLACE(SelectedIndexes.SchemaName,'_','[_]') AND tmpIndexesStatistics.ObjectName LIKE REPLACE(SelectedIndexes.ObjectName,'_','[_]') AND COALESCE(tmpIndexesStatistics.IndexName,tmpIndexesStatistics.StatisticsName) LIKE REPLACE(SelectedIndexes.IndexName,'_','[_]')
        WHERE SelectedIndexes.Selected = 0

        UPDATE tmpIndexesStatistics
        SET tmpIndexesStatistics.StartPosition = SelectedIndexes2.StartPosition
        FROM @tmpIndexesStatistics tmpIndexesStatistics
        INNER JOIN (SELECT tmpIndexesStatistics.SchemaName, tmpIndexesStatistics.ObjectName, tmpIndexesStatistics.IndexName, tmpIndexesStatistics.StatisticsName, MIN(SelectedIndexes.StartPosition) AS StartPosition
                    FROM @tmpIndexesStatistics tmpIndexesStatistics
                    INNER JOIN @SelectedIndexes SelectedIndexes
                    ON @CurrentDatabaseName LIKE REPLACE(SelectedIndexes.DatabaseName,'_','[_]') AND tmpIndexesStatistics.SchemaName LIKE REPLACE(SelectedIndexes.SchemaName,'_','[_]') AND tmpIndexesStatistics.ObjectName LIKE REPLACE(SelectedIndexes.ObjectName,'_','[_]') AND COALESCE(tmpIndexesStatistics.IndexName,tmpIndexesStatistics.StatisticsName) LIKE REPLACE(SelectedIndexes.IndexName,'_','[_]')
                    WHERE SelectedIndexes.Selected = 1
                    GROUP BY tmpIndexesStatistics.SchemaName, tmpIndexesStatistics.ObjectName, tmpIndexesStatistics.IndexName, tmpIndexesStatistics.StatisticsName) SelectedIndexes2
        ON tmpIndexesStatistics.SchemaName = SelectedIndexes2.SchemaName
        AND tmpIndexesStatistics.ObjectName = SelectedIndexes2.ObjectName
        AND (tmpIndexesStatistics.IndexName = SelectedIndexes2.IndexName OR tmpIndexesStatistics.IndexName IS NULL)
        AND (tmpIndexesStatistics.StatisticsName = SelectedIndexes2.StatisticsName OR tmpIndexesStatistics.StatisticsName IS NULL)
      END;

      WITH tmpIndexesStatistics AS (
      SELECT SchemaName, ObjectName, [Order], ROW_NUMBER() OVER (ORDER BY ISNULL(ResumableIndexOperation,0) DESC, StartPosition ASC, SchemaName ASC, ObjectName ASC, CASE WHEN IndexType IS NULL THEN 1 ELSE 0 END ASC, IndexType ASC, IndexName ASC, StatisticsName ASC, PartitionNumber ASC) AS RowNumber
      FROM @tmpIndexesStatistics tmpIndexesStatistics
      WHERE Selected = 1
      )
      UPDATE tmpIndexesStatistics
      SET [Order] = RowNumber

      SET @ErrorMessage = ''
      SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + '.' + QUOTENAME(SchemaName) + '.' + QUOTENAME(ObjectName) + ', '
      FROM @SelectedIndexes SelectedIndexes
      WHERE DatabaseName = @CurrentDatabaseName
      AND SchemaName NOT LIKE '%[%]%'
      AND ObjectName NOT LIKE '%[%]%'
      AND IndexName LIKE '%[%]%'
      AND NOT EXISTS (SELECT * FROM @tmpIndexesStatistics WHERE SchemaName = SelectedIndexes.SchemaName AND ObjectName = SelectedIndexes.ObjectName)
      IF @@ROWCOUNT > 0
      BEGIN
        SET @ErrorMessage = 'The following objects in the @Indexes parameter do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.'
        RAISERROR('%s',10,1,@ErrorMessage) WITH NOWAIT
        SET @Error = @@ERROR
        RAISERROR(@EmptyLine,10,1) WITH NOWAIT
      END

      SET @ErrorMessage = ''
      SELECT @ErrorMessage = @ErrorMessage + QUOTENAME(DatabaseName) + QUOTENAME(SchemaName) + '.' + QUOTENAME(ObjectName) + '.' + QUOTENAME(IndexName) + ', '
      FROM @SelectedIndexes SelectedIndexes
      WHERE DatabaseName = @CurrentDatabaseName
      AND SchemaName NOT LIKE '%[%]%'
      AND ObjectName NOT LIKE '%[%]%'
      AND IndexName NOT LIKE '%[%]%'
      AND NOT EXISTS (SELECT * FROM @tmpIndexesStatistics WHERE SchemaName = SelectedIndexes.SchemaName AND ObjectName = SelectedIndexes.ObjectName AND IndexName = SelectedIndexes.IndexName)
      IF @@ROWCOUNT > 0
      BEGIN
        SET @ErrorMessage = 'The following indexes in the @Indexes parameter do not exist: ' + LEFT(@ErrorMessage,LEN(@ErrorMessage)-1) + '.'
        RAISERROR('%s',10,1,@ErrorMessage) WITH NOWAIT
        SET @Error = @@ERROR
        RAISERROR(@EmptyLine,10,1) WITH NOWAIT
      END

      WHILE (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
      BEGIN
        SELECT TOP 1 @CurrentIxID = ID,
                     @CurrentIxOrder = [Order],
                     @CurrentSchemaID = SchemaID,
                     @CurrentSchemaName = SchemaName,
                     @CurrentObjectID = ObjectID,
                     @CurrentObjectName = ObjectName,
                     @CurrentObjectType = ObjectType,
                     @CurrentIsMemoryOptimized = IsMemoryOptimized,
                     @CurrentIndexID = IndexID,
                     @CurrentIndexName = IndexName,
                     @CurrentIndexType = IndexType,
                     @CurrentAllowPageLocks = AllowPageLocks,
                     @CurrentHasFilter = HasFilter,
                     @CurrentIsImageText = IsImageText,
                     @CurrentIsNewLOB = IsNewLOB,
                     @CurrentIsFileStream = IsFileStream,
                     @CurrentIsColumnStore = IsColumnStore,
                     @CurrentIsComputed = IsComputed,
                     @CurrentIsClusteredIndexComputed = IsClusteredIndexComputed,
                     @CurrentIsTimestamp = IsTimestamp,
                     @CurrentOnReadOnlyFileGroup = OnReadOnlyFileGroup,
                     @CurrentResumableIndexOperation = ResumableIndexOperation,
                     @CurrentStatisticsID = StatisticsID,
                     @CurrentStatisticsName = StatisticsName,
                     @CurrentNoRecompute = [NoRecompute],
                     @CurrentIsIncremental = IsIncremental,
                     @CurrentPartitionID = PartitionID,
                     @CurrentPartitionNumber = PartitionNumber,
                     @CurrentPartitionCount = PartitionCount
        FROM @tmpIndexesStatistics
        WHERE Selected = 1
        AND Completed = 0
        ORDER BY [Order] ASC

        IF @@ROWCOUNT = 0
        BEGIN
          BREAK
        END

        -- Is the index a partition?
        IF @CurrentPartitionNumber IS NULL OR @CurrentPartitionCount = 1 BEGIN SET @CurrentIsPartition = 0 END ELSE BEGIN SET @CurrentIsPartition = 1 END

        -- Does the index exist?
        IF @CurrentIndexID IS NOT NULL AND EXISTS(SELECT * FROM @ActionsPreferred)
        BEGIN
          SET @CurrentCommand = ''

          IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '

          IF @CurrentIsPartition = 0 SET @CurrentCommand += 'IF EXISTS(SELECT * FROM sys.indexes indexes INNER JOIN sys.objects objects ON indexes.[object_id] = objects.[object_id] INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] IN(''U'',''V'') AND indexes.[type] IN(1,2,3,4,5,6,7) AND indexes.is_disabled = 0 AND indexes.is_hypothetical = 0 AND schemas.[schema_id] = @ParamSchemaID AND schemas.[name] = @ParamSchemaName AND objects.[object_id] = @ParamObjectID AND objects.[name] = @ParamObjectName AND objects.[type] = @ParamObjectType AND indexes.index_id = @ParamIndexID AND indexes.[name] = @ParamIndexName AND indexes.[type] = @ParamIndexType) BEGIN SET @ParamIndexExists = 1 END'
          IF @CurrentIsPartition = 1 SET @CurrentCommand += 'IF EXISTS(SELECT * FROM sys.indexes indexes INNER JOIN sys.objects objects ON indexes.[object_id] = objects.[object_id] INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] INNER JOIN sys.partitions partitions ON indexes.[object_id] = partitions.[object_id] AND indexes.index_id = partitions.index_id WHERE objects.[type] IN(''U'',''V'') AND indexes.[type] IN(1,2,3,4,5,6,7) AND indexes.is_disabled = 0 AND indexes.is_hypothetical = 0 AND schemas.[schema_id] = @ParamSchemaID AND schemas.[name] = @ParamSchemaName AND objects.[object_id] = @ParamObjectID AND objects.[name] = @ParamObjectName AND objects.[type] = @ParamObjectType AND indexes.index_id = @ParamIndexID AND indexes.[name] = @ParamIndexName AND indexes.[type] = @ParamIndexType AND partitions.partition_id = @ParamPartitionID AND partitions.partition_number = @ParamPartitionNumber) BEGIN SET @ParamIndexExists = 1 END'

          BEGIN TRY
            EXECUTE @CurrentDatabase_sp_executesql @stmt = @CurrentCommand, @params = N'@ParamSchemaID int, @ParamSchemaName sysname, @ParamObjectID int, @ParamObjectName sysname, @ParamObjectType sysname, @ParamIndexID int, @ParamIndexName sysname, @ParamIndexType int, @ParamPartitionID bigint, @ParamPartitionNumber int, @ParamIndexExists bit OUTPUT', @ParamSchemaID = @CurrentSchemaID, @ParamSchemaName = @CurrentSchemaName, @ParamObjectID = @CurrentObjectID, @ParamObjectName = @CurrentObjectName, @ParamObjectType = @CurrentObjectType, @ParamIndexID = @CurrentIndexID, @ParamIndexName = @CurrentIndexName, @ParamIndexType = @CurrentIndexType, @ParamPartitionID = @CurrentPartitionID, @ParamPartitionNumber = @CurrentPartitionNumber, @ParamIndexExists = @CurrentIndexExists OUTPUT

            IF @CurrentIndexExists IS NULL
            BEGIN
              SET @CurrentIndexExists = 0
              GOTO NoAction
            END
          END TRY
          BEGIN CATCH
            SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'') + CASE WHEN ERROR_NUMBER() = 1222 THEN ' The index ' + QUOTENAME(@CurrentIndexName) + ' on the object ' + QUOTENAME(@CurrentDatabaseName) + '.' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentObjectName) + ' is locked. It could not be checked if the index exists.' ELSE '' END
            SET @Severity = CASE WHEN ERROR_NUMBER() IN(1205,1222) THEN @LockMessageSeverity ELSE 16 END
            RAISERROR('%s',@Severity,1,@ErrorMessage) WITH NOWAIT
            RAISERROR(@EmptyLine,10,1) WITH NOWAIT

            IF NOT (ERROR_NUMBER() IN(1205,1222) AND @LockMessageSeverity = 10)
            BEGIN
              SET @ReturnCode = ERROR_NUMBER()
            END

            GOTO NoAction
          END CATCH
        END

        -- Does the statistics exist?
        IF @CurrentStatisticsID IS NOT NULL AND @UpdateStatistics IS NOT NULL
        BEGIN
          SET @CurrentCommand = ''

          IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '

          SET @CurrentCommand += 'IF EXISTS(SELECT * FROM sys.stats stats INNER JOIN sys.objects objects ON stats.[object_id] = objects.[object_id] INNER JOIN sys.schemas schemas ON objects.[schema_id] = schemas.[schema_id] WHERE objects.[type] IN(''U'',''V'')' + CASE WHEN @MSShippedObjects = 'N' THEN ' AND objects.is_ms_shipped = 0' ELSE '' END + ' AND schemas.[schema_id] = @ParamSchemaID AND schemas.[name] = @ParamSchemaName AND objects.[object_id] = @ParamObjectID AND objects.[name] = @ParamObjectName AND objects.[type] = @ParamObjectType AND stats.stats_id = @ParamStatisticsID AND stats.[name] = @ParamStatisticsName) BEGIN SET @ParamStatisticsExists = 1 END'

          BEGIN TRY
            EXECUTE @CurrentDatabase_sp_executesql @stmt = @CurrentCommand, @params = N'@ParamSchemaID int, @ParamSchemaName sysname, @ParamObjectID int, @ParamObjectName sysname, @ParamObjectType sysname, @ParamStatisticsID int, @ParamStatisticsName sysname, @ParamStatisticsExists bit OUTPUT', @ParamSchemaID = @CurrentSchemaID, @ParamSchemaName = @CurrentSchemaName, @ParamObjectID = @CurrentObjectID, @ParamObjectName = @CurrentObjectName, @ParamObjectType = @CurrentObjectType, @ParamStatisticsID = @CurrentStatisticsID, @ParamStatisticsName = @CurrentStatisticsName, @ParamStatisticsExists = @CurrentStatisticsExists OUTPUT

            IF @CurrentStatisticsExists IS NULL
            BEGIN
              SET @CurrentStatisticsExists = 0
              GOTO NoAction
            END
          END TRY
          BEGIN CATCH
            SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'') + CASE WHEN ERROR_NUMBER() = 1222 THEN ' The statistics ' + QUOTENAME(@CurrentStatisticsName) + ' on the object ' + QUOTENAME(@CurrentDatabaseName) + '.' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentObjectName) + ' is locked. It could not be checked if the statistics exists.' ELSE '' END
            SET @Severity = CASE WHEN ERROR_NUMBER() IN(1205,1222) THEN @LockMessageSeverity ELSE 16 END
            RAISERROR('%s',@Severity,1,@ErrorMessage) WITH NOWAIT
            RAISERROR(@EmptyLine,10,1) WITH NOWAIT

            IF NOT (ERROR_NUMBER() IN(1205,1222) AND @LockMessageSeverity = 10)
            BEGIN
              SET @ReturnCode = ERROR_NUMBER()
            END

            GOTO NoAction
          END CATCH
        END

        -- Has the data in the statistics been modified since the statistics was last updated?
        IF @CurrentStatisticsID IS NOT NULL AND @UpdateStatistics IS NOT NULL
        BEGIN
          SET @CurrentCommand = ''

          IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '

          IF @PartitionLevelStatistics = 1 AND @CurrentIsIncremental = 1
          BEGIN
            SET @CurrentCommand += 'SELECT @ParamRowCount = [rows], @ParamModificationCounter = modification_counter FROM sys.dm_db_incremental_stats_properties (@ParamObjectID, @ParamStatisticsID) WHERE partition_number = @ParamPartitionNumber'
          END
          ELSE
          IF (@Version >= 10.504000 AND @Version < 11) OR @Version >= 11.03000
          BEGIN
            SET @CurrentCommand += 'SELECT @ParamRowCount = [rows], @ParamModificationCounter = modification_counter FROM sys.dm_db_stats_properties (@ParamObjectID, @ParamStatisticsID)'
          END
          ELSE
          BEGIN
            SET @CurrentCommand += 'SELECT @ParamRowCount = rowcnt, @ParamModificationCounter = rowmodctr FROM sys.sysindexes sysindexes WHERE sysindexes.[id] = @ParamObjectID AND sysindexes.[indid] = @ParamStatisticsID'
          END

          BEGIN TRY
            EXECUTE @CurrentDatabase_sp_executesql @stmt = @CurrentCommand, @params = N'@ParamObjectID int, @ParamStatisticsID int, @ParamPartitionNumber int, @ParamRowCount bigint OUTPUT, @ParamModificationCounter bigint OUTPUT', @ParamObjectID = @CurrentObjectID, @ParamStatisticsID = @CurrentStatisticsID, @ParamPartitionNumber = @CurrentPartitionNumber, @ParamRowCount = @CurrentRowCount OUTPUT, @ParamModificationCounter = @CurrentModificationCounter OUTPUT

            IF @CurrentRowCount IS NULL SET @CurrentRowCount = 0
            IF @CurrentModificationCounter IS NULL SET @CurrentModificationCounter = 0
          END TRY
          BEGIN CATCH
            SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'') + CASE WHEN ERROR_NUMBER() = 1222 THEN ' The statistics ' + QUOTENAME(@CurrentStatisticsName) + ' on the object ' + QUOTENAME(@CurrentDatabaseName) + '.' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentObjectName) + ' is locked. The rows and modification_counter could not be checked.' ELSE '' END
            SET @Severity = CASE WHEN ERROR_NUMBER() IN(1205,1222) THEN @LockMessageSeverity ELSE 16 END
            RAISERROR('%s',@Severity,1,@ErrorMessage) WITH NOWAIT
            RAISERROR(@EmptyLine,10,1) WITH NOWAIT

            IF NOT (ERROR_NUMBER() IN(1205,1222) AND @LockMessageSeverity = 10)
            BEGIN
              SET @ReturnCode = ERROR_NUMBER()
            END

            GOTO NoAction
          END CATCH
        END

        -- Is the index fragmented?
        IF @CurrentIndexID IS NOT NULL
        AND @CurrentOnReadOnlyFileGroup = 0
        AND EXISTS(SELECT * FROM @ActionsPreferred)
        AND (EXISTS(SELECT [Priority], [Action], COUNT(*) FROM @ActionsPreferred GROUP BY [Priority], [Action] HAVING COUNT(*) <> 3) OR @MinNumberOfPages > 0 OR @MaxNumberOfPages IS NOT NULL)
        AND NOT (SERVERPROPERTY('EngineEdition') = 8 AND @CurrentDatabaseName IN ('master', 'model'))
        BEGIN
          SET @CurrentCommand = ''

          IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '

          SET @CurrentCommand += 'SELECT @ParamFragmentationLevel = MAX(avg_fragmentation_in_percent), @ParamPageCount = SUM(page_count) FROM sys.dm_db_index_physical_stats(DB_ID(@ParamDatabaseName), @ParamObjectID, @ParamIndexID, @ParamPartitionNumber, ''LIMITED'') WHERE alloc_unit_type_desc = ''IN_ROW_DATA'' AND index_level = 0'

          BEGIN TRY
            EXECUTE sp_executesql @stmt = @CurrentCommand, @params = N'@ParamDatabaseName nvarchar(max), @ParamObjectID int, @ParamIndexID int, @ParamPartitionNumber int, @ParamFragmentationLevel float OUTPUT, @ParamPageCount bigint OUTPUT', @ParamDatabaseName = @CurrentDatabaseName, @ParamObjectID = @CurrentObjectID, @ParamIndexID = @CurrentIndexID, @ParamPartitionNumber = @CurrentPartitionNumber, @ParamFragmentationLevel = @CurrentFragmentationLevel OUTPUT, @ParamPageCount = @CurrentPageCount OUTPUT
          END TRY
          BEGIN CATCH
            SET @ErrorMessage = 'Msg ' + CAST(ERROR_NUMBER() AS nvarchar) + ', ' + ISNULL(ERROR_MESSAGE(),'') + CASE WHEN ERROR_NUMBER() = 1222 THEN ' The index ' + QUOTENAME(@CurrentIndexName) + ' on the object ' + QUOTENAME(@CurrentDatabaseName) + '.' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentObjectName) + ' is locked. The page_count and avg_fragmentation_in_percent could not be checked.' ELSE '' END
            SET @Severity = CASE WHEN ERROR_NUMBER() IN(1205,1222) THEN @LockMessageSeverity ELSE 16 END
            RAISERROR('%s',@Severity,1,@ErrorMessage) WITH NOWAIT
            RAISERROR(@EmptyLine,10,1) WITH NOWAIT

            IF NOT (ERROR_NUMBER() IN(1205,1222) AND @LockMessageSeverity = 10)
            BEGIN
              SET @ReturnCode = ERROR_NUMBER()
            END

            GOTO NoAction
          END CATCH
        END

        -- Select fragmentation group
        IF @CurrentIndexID IS NOT NULL AND @CurrentOnReadOnlyFileGroup = 0 AND EXISTS(SELECT * FROM @ActionsPreferred)
        BEGIN
          SET @CurrentFragmentationGroup = CASE
          WHEN @CurrentFragmentationLevel >= @FragmentationLevel2 THEN 'High'
          WHEN @CurrentFragmentationLevel >= @FragmentationLevel1 AND @CurrentFragmentationLevel < @FragmentationLevel2 THEN 'Medium'
          WHEN @CurrentFragmentationLevel < @FragmentationLevel1 THEN 'Low'
          END
        END

        -- Which actions are allowed?
        IF @CurrentIndexID IS NOT NULL AND EXISTS(SELECT * FROM @ActionsPreferred)
        BEGIN
          IF @CurrentOnReadOnlyFileGroup = 0 AND @CurrentIndexType IN (1,2,3,4,5) AND (@CurrentIsMemoryOptimized = 0 OR @CurrentIsMemoryOptimized IS NULL) AND (@CurrentAllowPageLocks = 1 OR @CurrentIndexType = 5)
          BEGIN
            INSERT INTO @CurrentActionsAllowed ([Action])
            VALUES ('INDEX_REORGANIZE')
          END
          IF @CurrentOnReadOnlyFileGroup = 0 AND @CurrentIndexType IN (1,2,3,4,5) AND (@CurrentIsMemoryOptimized = 0 OR @CurrentIsMemoryOptimized IS NULL)
          BEGIN
            INSERT INTO @CurrentActionsAllowed ([Action])
            VALUES ('INDEX_REBUILD_OFFLINE')
          END
          IF @CurrentOnReadOnlyFileGroup = 0
          AND (@CurrentIsMemoryOptimized = 0 OR @CurrentIsMemoryOptimized IS NULL)
          AND (@CurrentIsPartition = 0 OR @Version >= 12)
          AND ((@CurrentIndexType = 1 AND @CurrentIsImageText = 0 AND @CurrentIsNewLOB = 0)
          OR (@CurrentIndexType = 2 AND @CurrentIsNewLOB = 0)
          OR (@CurrentIndexType = 1 AND @CurrentIsImageText = 0 AND @CurrentIsFileStream = 0 AND @Version >= 11)
          OR (@CurrentIndexType = 2 AND @Version >= 11))
          AND (@CurrentIsColumnStore = 0 OR @Version < 11)
          AND SERVERPROPERTY('EngineEdition') IN (3,5,8)
          BEGIN
            INSERT INTO @CurrentActionsAllowed ([Action])
            VALUES ('INDEX_REBUILD_ONLINE')
          END
        END

        -- Decide action
        IF @CurrentIndexID IS NOT NULL
        AND EXISTS(SELECT * FROM @ActionsPreferred)
        AND (@CurrentPageCount >= @MinNumberOfPages OR @MinNumberOfPages = 0)
        AND (@CurrentPageCount <= @MaxNumberOfPages OR @MaxNumberOfPages IS NULL)
        AND @CurrentResumableIndexOperation = 0
        BEGIN
          IF EXISTS(SELECT [Priority], [Action], COUNT(*) FROM @ActionsPreferred GROUP BY [Priority], [Action] HAVING COUNT(*) <> 3)
          BEGIN
            SELECT @CurrentAction = [Action]
            FROM @ActionsPreferred
            WHERE FragmentationGroup = @CurrentFragmentationGroup
            AND [Priority] = (SELECT MIN([Priority])
                              FROM @ActionsPreferred
                              WHERE FragmentationGroup = @CurrentFragmentationGroup
                              AND [Action] IN (SELECT [Action] FROM @CurrentActionsAllowed))
          END
          ELSE
          BEGIN
            SELECT @CurrentAction = [Action]
            FROM @ActionsPreferred
            WHERE [Priority] = (SELECT MIN([Priority])
                                FROM @ActionsPreferred
                                WHERE [Action] IN (SELECT [Action] FROM @CurrentActionsAllowed))
          END
        END

        IF @CurrentResumableIndexOperation = 1
        BEGIN
          SET @CurrentAction = 'INDEX_REBUILD_ONLINE'
        END

        -- Workaround for limitation in SQL Server, http://support.microsoft.com/kb/2292737
        IF @CurrentIndexID IS NOT NULL
        BEGIN
          SET @CurrentMaxDOP = @MaxDOP

          IF @CurrentAction = 'INDEX_REBUILD_ONLINE' AND @CurrentAllowPageLocks = 0
          BEGIN
            SET @CurrentMaxDOP = 1
          END
        END

        -- Update statistics?
        IF @CurrentStatisticsID IS NOT NULL
        AND ((@UpdateStatistics = 'ALL' AND (@CurrentIndexType IN (1,2,3,4,7) OR @CurrentIndexID IS NULL)) OR (@UpdateStatistics = 'INDEX' AND @CurrentIndexID IS NOT NULL AND @CurrentIndexType IN (1,2,3,4,7)) OR (@UpdateStatistics = 'COLUMNS' AND @CurrentIndexID IS NULL))
        AND ((@OnlyModifiedStatistics = 'N' AND @StatisticsModificationLevel IS NULL) OR (@OnlyModifiedStatistics = 'Y' AND @CurrentModificationCounter > 0) OR ((@CurrentModificationCounter * 1. / NULLIF(@CurrentRowCount,0)) * 100 >= @StatisticsModificationLevel) OR (@StatisticsModificationLevel IS NOT NULL AND @CurrentModificationCounter > 0 AND (@CurrentModificationCounter >= SQRT(@CurrentRowCount * 1000))) OR (@CurrentIsMemoryOptimized = 1 AND NOT (@Version >= 13 OR SERVERPROPERTY('EngineEdition') IN (5,8))))
        AND ((@CurrentIsPartition = 0 AND (@CurrentAction NOT IN('INDEX_REBUILD_ONLINE','INDEX_REBUILD_OFFLINE') OR @CurrentAction IS NULL)) OR (@CurrentIsPartition = 1 AND (@CurrentPartitionNumber = @CurrentPartitionCount OR (@PartitionLevelStatistics = 1 AND @CurrentIsIncremental = 1))))
        BEGIN
          SET @CurrentUpdateStatistics = 'Y'
        END
        ELSE
        BEGIN
          SET @CurrentUpdateStatistics = 'N'
        END

        SET @CurrentStatisticsSample = @StatisticsSample
        SET @CurrentStatisticsResample = @StatisticsResample

        -- Memory-optimized tables only supports FULLSCAN and RESAMPLE in SQL Server 2014
        IF @CurrentIsMemoryOptimized = 1 AND NOT (@Version >= 13 OR SERVERPROPERTY('EngineEdition') IN (5,8)) AND (@CurrentStatisticsSample <> 100 OR @CurrentStatisticsSample IS NULL)
        BEGIN
          SET @CurrentStatisticsSample = NULL
          SET @CurrentStatisticsResample = 'Y'
        END

        -- Incremental statistics only supports RESAMPLE
        IF @PartitionLevelStatistics = 1 AND @CurrentIsIncremental = 1
        BEGIN
          SET @CurrentStatisticsSample = NULL
          SET @CurrentStatisticsResample = 'Y'
        END

        -- Create index comment
        IF @CurrentIndexID IS NOT NULL
        BEGIN
          SET @CurrentComment = 'ObjectType: ' + CASE WHEN @CurrentObjectType = 'U' THEN 'Table' WHEN @CurrentObjectType = 'V' THEN 'View' ELSE 'N/A' END + ', '
          SET @CurrentComment += 'IndexType: ' + CASE WHEN @CurrentIndexType = 1 THEN 'Clustered' WHEN @CurrentIndexType = 2 THEN 'NonClustered' WHEN @CurrentIndexType = 3 THEN 'XML' WHEN @CurrentIndexType = 4 THEN 'Spatial' WHEN @CurrentIndexType = 5 THEN 'Clustered Columnstore' WHEN @CurrentIndexType = 6 THEN 'NonClustered Columnstore' WHEN @CurrentIndexType = 7 THEN 'NonClustered Hash' ELSE 'N/A' END + ', '
          SET @CurrentComment += 'ImageText: ' + CASE WHEN @CurrentIsImageText = 1 THEN 'Yes' WHEN @CurrentIsImageText = 0 THEN 'No' ELSE 'N/A' END + ', '
          SET @CurrentComment += 'NewLOB: ' + CASE WHEN @CurrentIsNewLOB = 1 THEN 'Yes' WHEN @CurrentIsNewLOB = 0 THEN 'No' ELSE 'N/A' END + ', '
          SET @CurrentComment += 'FileStream: ' + CASE WHEN @CurrentIsFileStream = 1 THEN 'Yes' WHEN @CurrentIsFileStream = 0 THEN 'No' ELSE 'N/A' END + ', '
          IF @Version >= 11 SET @CurrentComment += 'ColumnStore: ' + CASE WHEN @CurrentIsColumnStore = 1 THEN 'Yes' WHEN @CurrentIsColumnStore = 0 THEN 'No' ELSE 'N/A' END + ', '
          IF @Version >= 14 AND @Resumable = 'Y' SET @CurrentComment += 'Computed: ' + CASE WHEN @CurrentIsComputed = 1 THEN 'Yes' WHEN @CurrentIsComputed = 0 THEN 'No' ELSE 'N/A' END + ', '
          IF @Version >= 14 AND @Resumable = 'Y' AND @CurrentIndexType = 2 SET @CurrentComment += 'ClusteredIndexComputed: ' + CASE WHEN @CurrentIsClusteredIndexComputed = 1 THEN 'Yes' WHEN @CurrentIsClusteredIndexComputed = 0 THEN 'No' ELSE 'N/A' END + ', '
          IF @Version >= 14 AND @Resumable = 'Y' SET @CurrentComment += 'Timestamp: ' + CASE WHEN @CurrentIsTimestamp = 1 THEN 'Yes' WHEN @CurrentIsTimestamp = 0 THEN 'No' ELSE 'N/A' END + ', '
          IF @Version >= 14 AND @Resumable = 'Y' SET @CurrentComment += 'HasFilter: ' + CASE WHEN @CurrentHasFilter = 1 THEN 'Yes' WHEN @CurrentHasFilter = 0 THEN 'No' ELSE 'N/A' END + ', '
          SET @CurrentComment += 'AllowPageLocks: ' + CASE WHEN @CurrentAllowPageLocks = 1 THEN 'Yes' WHEN @CurrentAllowPageLocks = 0 THEN 'No' ELSE 'N/A' END + ', '
          SET @CurrentComment += 'PageCount: ' + ISNULL(CAST(@CurrentPageCount AS nvarchar),'N/A') + ', '
          SET @CurrentComment += 'Fragmentation: ' + ISNULL(CAST(@CurrentFragmentationLevel AS nvarchar),'N/A')
        END

        IF @CurrentIndexID IS NOT NULL AND (@CurrentPageCount IS NOT NULL OR @CurrentFragmentationLevel IS NOT NULL)
        BEGIN
        SET @CurrentExtendedInfo = (SELECT *
                                    FROM (SELECT CAST(@CurrentPageCount AS nvarchar) AS [PageCount],
                                                 CAST(@CurrentFragmentationLevel AS nvarchar) AS Fragmentation
                                    ) ExtendedInfo FOR XML RAW('ExtendedInfo'), ELEMENTS)
        END

        IF @CurrentIndexID IS NOT NULL AND @CurrentAction IS NOT NULL AND (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
        BEGIN
          SET @CurrentDatabaseContext = @CurrentDatabaseName

          SET @CurrentCommandType = 'ALTER_INDEX'

          SET @CurrentCommand = ''
          IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '
          SET @CurrentCommand += 'ALTER INDEX ' + QUOTENAME(@CurrentIndexName) + ' ON ' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentObjectName)
          IF @CurrentResumableIndexOperation = 1 SET @CurrentCommand += ' RESUME'
          IF @CurrentAction IN('INDEX_REBUILD_ONLINE','INDEX_REBUILD_OFFLINE') AND @CurrentResumableIndexOperation = 0 SET @CurrentCommand += ' REBUILD'
          IF @CurrentAction IN('INDEX_REORGANIZE') AND @CurrentResumableIndexOperation = 0 SET @CurrentCommand += ' REORGANIZE'
          IF @CurrentIsPartition = 1 AND @CurrentResumableIndexOperation = 0 SET @CurrentCommand += ' PARTITION = ' + CAST(@CurrentPartitionNumber AS nvarchar)

          IF @CurrentAction IN('INDEX_REBUILD_ONLINE','INDEX_REBUILD_OFFLINE') AND @SortInTempdb = 'Y' AND @CurrentIndexType IN(1,2,3,4) AND @CurrentResumableIndexOperation = 0
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'SORT_IN_TEMPDB = ON'
          END

          IF @CurrentAction IN('INDEX_REBUILD_ONLINE','INDEX_REBUILD_OFFLINE') AND @SortInTempdb = 'N' AND @CurrentIndexType IN(1,2,3,4) AND @CurrentResumableIndexOperation = 0
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'SORT_IN_TEMPDB = OFF'
          END

          IF @CurrentAction = 'INDEX_REBUILD_ONLINE' AND (@CurrentIsPartition = 0 OR @Version >= 12) AND @CurrentResumableIndexOperation = 0
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'ONLINE = ON' + CASE WHEN @WaitAtLowPriorityMaxDuration IS NOT NULL THEN ' (WAIT_AT_LOW_PRIORITY (MAX_DURATION = ' + CAST(@WaitAtLowPriorityMaxDuration AS nvarchar) + ', ABORT_AFTER_WAIT = ' + UPPER(@WaitAtLowPriorityAbortAfterWait) + '))' ELSE '' END
          END

          IF @CurrentAction = 'INDEX_REBUILD_OFFLINE' AND (@CurrentIsPartition = 0 OR @Version >= 12) AND @CurrentResumableIndexOperation = 0
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'ONLINE = OFF'
          END

          IF @CurrentAction IN('INDEX_REBUILD_ONLINE','INDEX_REBUILD_OFFLINE') AND @CurrentMaxDOP IS NOT NULL
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'MAXDOP = ' + CAST(@CurrentMaxDOP AS nvarchar)
          END

          IF @CurrentAction IN('INDEX_REBUILD_ONLINE','INDEX_REBUILD_OFFLINE') AND @FillFactor IS NOT NULL AND @CurrentIsPartition = 0 AND @CurrentIndexType IN(1,2,3,4) AND @CurrentResumableIndexOperation = 0
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'FILLFACTOR = ' + CAST(@FillFactor AS nvarchar)
          END

          IF @CurrentAction IN('INDEX_REBUILD_ONLINE','INDEX_REBUILD_OFFLINE') AND @PadIndex = 'Y' AND @CurrentIsPartition = 0 AND @CurrentIndexType IN(1,2,3,4) AND @CurrentResumableIndexOperation = 0
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'PAD_INDEX = ON'
          END

          IF (@Version >= 14 OR SERVERPROPERTY('EngineEdition') IN (5,8)) AND @CurrentAction = 'INDEX_REBUILD_ONLINE' AND @CurrentResumableIndexOperation = 0
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT CASE WHEN @Resumable = 'Y' AND @CurrentIndexType IN(1,2) AND @CurrentIsComputed = 0 AND @CurrentIsClusteredIndexComputed = 0 AND @CurrentIsTimestamp = 0 AND @CurrentHasFilter = 0 THEN 'RESUMABLE = ON' ELSE 'RESUMABLE = OFF' END
          END

          IF (@Version >= 14 OR SERVERPROPERTY('EngineEdition') IN (5,8)) AND @CurrentAction = 'INDEX_REBUILD_ONLINE' AND @CurrentResumableIndexOperation = 0 AND @Resumable = 'Y'  AND @CurrentIndexType IN(1,2) AND @CurrentIsComputed = 0 AND @CurrentIsClusteredIndexComputed = 0 AND @CurrentIsTimestamp = 0 AND @CurrentHasFilter = 0 AND @TimeLimit IS NOT NULL
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'MAX_DURATION = ' + CAST(DATEDIFF(MINUTE,SYSDATETIME(),DATEADD(SECOND,@TimeLimit,@StartTime)) AS nvarchar(max))
          END

          IF @CurrentAction IN('INDEX_REORGANIZE') AND @LOBCompaction = 'Y'
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'LOB_COMPACTION = ON'
          END

          IF @CurrentAction IN('INDEX_REORGANIZE') AND @LOBCompaction = 'N'
          BEGIN
            INSERT INTO @CurrentAlterIndexWithClauseArguments (Argument)
            SELECT 'LOB_COMPACTION = OFF'
          END

          IF EXISTS (SELECT * FROM @CurrentAlterIndexWithClauseArguments)
          BEGIN
            SET @CurrentAlterIndexWithClause = ' WITH ('

            WHILE (1 = 1)
            BEGIN
              SELECT TOP 1 @CurrentAlterIndexArgumentID = ID,
                           @CurrentAlterIndexArgument = Argument
              FROM @CurrentAlterIndexWithClauseArguments
              WHERE Added = 0
              ORDER BY ID ASC

              IF @@ROWCOUNT = 0
              BEGIN
                BREAK
              END

              SET @CurrentAlterIndexWithClause += @CurrentAlterIndexArgument + ', '

              UPDATE @CurrentAlterIndexWithClauseArguments
              SET Added = 1
              WHERE [ID] = @CurrentAlterIndexArgumentID
            END

            SET @CurrentAlterIndexWithClause = RTRIM(@CurrentAlterIndexWithClause)

            SET @CurrentAlterIndexWithClause = LEFT(@CurrentAlterIndexWithClause,LEN(@CurrentAlterIndexWithClause) - 1)

            SET @CurrentAlterIndexWithClause = @CurrentAlterIndexWithClause + ')'
          END

          IF @CurrentAlterIndexWithClause IS NOT NULL SET @CurrentCommand += @CurrentAlterIndexWithClause

          EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseName, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 2, @Comment = @CurrentComment, @DatabaseName = @CurrentDatabaseName, @SchemaName = @CurrentSchemaName, @ObjectName = @CurrentObjectName, @ObjectType = @CurrentObjectType, @IndexName = @CurrentIndexName, @IndexType = @CurrentIndexType, @PartitionNumber = @CurrentPartitionNumber, @ExtendedInfo = @CurrentExtendedInfo, @LockMessageSeverity = @LockMessageSeverity, @ExecuteAsUser = @ExecuteAsUser, @LogToTable = @LogToTable, @Execute = @Execute
          SET @Error = @@ERROR
          IF @Error <> 0 SET @CurrentCommandOutput = @Error
          IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput

          IF @Delay > 0
          BEGIN
            SET @CurrentDelay = DATEADD(ss,@Delay,'1900-01-01')
            WAITFOR DELAY @CurrentDelay
          END
        END

        SET @CurrentMaxDOP = @MaxDOP

        -- Create statistics comment
        IF @CurrentStatisticsID IS NOT NULL
        BEGIN
          SET @CurrentComment = 'ObjectType: ' + CASE WHEN @CurrentObjectType = 'U' THEN 'Table' WHEN @CurrentObjectType = 'V' THEN 'View' ELSE 'N/A' END + ', '
          SET @CurrentComment += 'IndexType: ' + CASE WHEN @CurrentIndexID IS NOT NULL THEN 'Index' ELSE 'Column' END + ', '
          IF @CurrentIndexID IS NOT NULL SET @CurrentComment += 'IndexType: ' + CASE WHEN @CurrentIndexType = 1 THEN 'Clustered' WHEN @CurrentIndexType = 2 THEN 'NonClustered' WHEN @CurrentIndexType = 3 THEN 'XML' WHEN @CurrentIndexType = 4 THEN 'Spatial' WHEN @CurrentIndexType = 5 THEN 'Clustered Columnstore' WHEN @CurrentIndexType = 6 THEN 'NonClustered Columnstore' WHEN @CurrentIndexType = 7 THEN 'NonClustered Hash' ELSE 'N/A' END + ', '
          SET @CurrentComment += 'Incremental: ' + CASE WHEN @CurrentIsIncremental = 1 THEN 'Y' WHEN @CurrentIsIncremental = 0 THEN 'N' ELSE 'N/A' END + ', '
          SET @CurrentComment += 'RowCount: ' + ISNULL(CAST(@CurrentRowCount AS nvarchar),'N/A') + ', '
          SET @CurrentComment += 'ModificationCounter: ' + ISNULL(CAST(@CurrentModificationCounter AS nvarchar),'N/A')
        END

        IF @CurrentStatisticsID IS NOT NULL AND (@CurrentRowCount IS NOT NULL OR @CurrentModificationCounter IS NOT NULL)
        BEGIN
        SET @CurrentExtendedInfo = (SELECT *
                                    FROM (SELECT CAST(@CurrentRowCount AS nvarchar) AS [RowCount],
                                                 CAST(@CurrentModificationCounter AS nvarchar) AS ModificationCounter
                                    ) ExtendedInfo FOR XML RAW('ExtendedInfo'), ELEMENTS)
        END

        IF @CurrentStatisticsID IS NOT NULL AND @CurrentUpdateStatistics = 'Y' AND (SYSDATETIME() < DATEADD(SECOND,@TimeLimit,@StartTime) OR @TimeLimit IS NULL)
        BEGIN
          SET @CurrentDatabaseContext = @CurrentDatabaseName

          SET @CurrentCommandType = 'UPDATE_STATISTICS'

          SET @CurrentCommand = ''
          IF @LockTimeout IS NOT NULL SET @CurrentCommand = 'SET LOCK_TIMEOUT ' + CAST(@LockTimeout * 1000 AS nvarchar) + '; '
          SET @CurrentCommand += 'UPDATE STATISTICS ' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentObjectName) + ' ' + QUOTENAME(@CurrentStatisticsName)

          IF @CurrentMaxDOP IS NOT NULL AND ((@Version >= 12.06024 AND @Version < 13) OR (@Version >= 13.05026 AND @Version < 14) OR @Version >= 14.030154)
          BEGIN
            INSERT INTO @CurrentUpdateStatisticsWithClauseArguments (Argument)
            SELECT 'MAXDOP = ' + CAST(@CurrentMaxDOP AS nvarchar)
          END

          IF @CurrentStatisticsSample = 100
          BEGIN
            INSERT INTO @CurrentUpdateStatisticsWithClauseArguments (Argument)
            SELECT 'FULLSCAN'
          END

          IF @CurrentStatisticsSample IS NOT NULL AND @CurrentStatisticsSample <> 100
          BEGIN
            INSERT INTO @CurrentUpdateStatisticsWithClauseArguments (Argument)
            SELECT 'SAMPLE ' + CAST(@CurrentStatisticsSample AS nvarchar) + ' PERCENT'
          END

          IF @CurrentNoRecompute = 1
          BEGIN
            INSERT INTO @CurrentUpdateStatisticsWithClauseArguments (Argument)
            SELECT 'NORECOMPUTE'
          END

          IF @CurrentStatisticsResample = 'Y'
          BEGIN
            INSERT INTO @CurrentUpdateStatisticsWithClauseArguments (Argument)
            SELECT 'RESAMPLE'
          END

          IF EXISTS (SELECT * FROM @CurrentUpdateStatisticsWithClauseArguments)
          BEGIN
            SET @CurrentUpdateStatisticsWithClause = ' WITH'

            WHILE (1 = 1)
            BEGIN
              SELECT TOP 1 @CurrentUpdateStatisticsArgumentID = ID,
                           @CurrentUpdateStatisticsArgument = Argument
              FROM @CurrentUpdateStatisticsWithClauseArguments
              WHERE Added = 0
              ORDER BY ID ASC

              IF @@ROWCOUNT = 0
              BEGIN
                BREAK
              END

              SET @CurrentUpdateStatisticsWithClause = @CurrentUpdateStatisticsWithClause + ' ' + @CurrentUpdateStatisticsArgument + ','

              UPDATE @CurrentUpdateStatisticsWithClauseArguments
              SET Added = 1
              WHERE [ID] = @CurrentUpdateStatisticsArgumentID
            END

            SET @CurrentUpdateStatisticsWithClause = LEFT(@CurrentUpdateStatisticsWithClause,LEN(@CurrentUpdateStatisticsWithClause) - 1)
          END

          IF @CurrentUpdateStatisticsWithClause IS NOT NULL SET @CurrentCommand += @CurrentUpdateStatisticsWithClause

          IF @PartitionLevelStatistics = 1 AND @CurrentIsIncremental = 1 AND @CurrentPartitionNumber IS NOT NULL SET @CurrentCommand += ' ON PARTITIONS(' + CAST(@CurrentPartitionNumber AS nvarchar(max)) + ')'

          EXECUTE @CurrentCommandOutput = dbo.CommandExecute @DatabaseContext = @CurrentDatabaseName, @Command = @CurrentCommand, @CommandType = @CurrentCommandType, @Mode = 2, @Comment = @CurrentComment, @DatabaseName = @CurrentDatabaseName, @SchemaName = @CurrentSchemaName, @ObjectName = @CurrentObjectName, @ObjectType = @CurrentObjectType, @IndexName = @CurrentIndexName, @IndexType = @CurrentIndexType, @StatisticsName = @CurrentStatisticsName, @ExtendedInfo = @CurrentExtendedInfo, @LockMessageSeverity = @LockMessageSeverity, @ExecuteAsUser = @ExecuteAsUser, @LogToTable = @LogToTable, @Execute = @Execute
          SET @Error = @@ERROR
          IF @Error <> 0 SET @CurrentCommandOutput = @Error
          IF @CurrentCommandOutput <> 0 SET @ReturnCode = @CurrentCommandOutput
        END

        NoAction:

        -- Update that the index or statistics is completed
        UPDATE @tmpIndexesStatistics
        SET Completed = 1
        WHERE Selected = 1
        AND Completed = 0
        AND [Order] = @CurrentIxOrder
        AND ID = @CurrentIxID

        -- Clear variables
        SET @CurrentDatabaseContext = NULL

        SET @CurrentCommand = NULL
        SET @CurrentCommandOutput = NULL
        SET @CurrentCommandType = NULL
        SET @CurrentComment = NULL
        SET @CurrentExtendedInfo = NULL

        SET @CurrentIxID = NULL
        SET @CurrentIxOrder = NULL
        SET @CurrentSchemaID = NULL
        SET @CurrentSchemaName = NULL
        SET @CurrentObjectID = NULL
        SET @CurrentObjectName = NULL
        SET @CurrentObjectType = NULL
        SET @CurrentIsMemoryOptimized = NULL
        SET @CurrentIndexID = NULL
        SET @CurrentIndexName = NULL
        SET @CurrentIndexType = NULL
        SET @CurrentStatisticsID = NULL
        SET @CurrentStatisticsName = NULL
        SET @CurrentPartitionID = NULL
        SET @CurrentPartitionNumber = NULL
        SET @CurrentPartitionCount = NULL
        SET @CurrentIsPartition = NULL
        SET @CurrentIndexExists = NULL
        SET @CurrentStatisticsExists = NULL
        SET @CurrentIsImageText = NULL
        SET @CurrentIsNewLOB = NULL
        SET @CurrentIsFileStream = NULL
        SET @CurrentIsColumnStore = NULL
        SET @CurrentIsComputed = NULL
        SET @CurrentIsClusteredIndexComputed = NULL
        SET @CurrentIsTimestamp = NULL
        SET @CurrentAllowPageLocks = NULL
        SET @CurrentHasFilter = NULL
        SET @CurrentNoRecompute = NULL
        SET @CurrentIsIncremental = NULL
        SET @CurrentRowCount = NULL
        SET @CurrentModificationCounter = NULL
        SET @CurrentOnReadOnlyFileGroup = NULL
        SET @CurrentResumableIndexOperation = NULL
        SET @CurrentFragmentationLevel = NULL
        SET @CurrentPageCount = NULL
        SET @CurrentFragmentationGroup = NULL
        SET @CurrentAction = NULL
        SET @CurrentMaxDOP = NULL
        SET @CurrentUpdateStatistics = NULL
        SET @CurrentStatisticsSample = NULL
        SET @CurrentStatisticsResample = NULL
        SET @CurrentAlterIndexArgumentID = NULL
        SET @CurrentAlterIndexArgument = NULL
        SET @CurrentAlterIndexWithClause = NULL
        SET @CurrentUpdateStatisticsArgumentID = NULL
        SET @CurrentUpdateStatisticsArgument = NULL
        SET @CurrentUpdateStatisticsWithClause = NULL

        DELETE FROM @CurrentActionsAllowed
        DELETE FROM @CurrentAlterIndexWithClauseArguments
        DELETE FROM @CurrentUpdateStatisticsWithClauseArguments

      END

    END

    IF @CurrentDatabaseState = 'SUSPECT'
    BEGIN
      SET @ErrorMessage = 'The database ' + QUOTENAME(@CurrentDatabaseName) + ' is in a SUSPECT state.'
      RAISERROR('%s',16,1,@ErrorMessage) WITH NOWAIT
      RAISERROR(@EmptyLine,10,1) WITH NOWAIT
      SET @Error = @@ERROR
    END

    -- Update that the database is completed
    IF @DatabasesInParallel = 'Y'
    BEGIN
      UPDATE dbo.QueueDatabase
      SET DatabaseEndTime = SYSDATETIME()
      WHERE QueueID = @QueueID
      AND DatabaseName = @CurrentDatabaseName
    END
    ELSE
    BEGIN
      UPDATE @tmpDatabases
      SET Completed = 1
      WHERE Selected = 1
      AND Completed = 0
      AND ID = @CurrentDBID
    END

    -- Clear variables
    SET @CurrentDBID = NULL
    SET @CurrentDatabaseName = NULL

    SET @CurrentDatabase_sp_executesql = NULL

    SET @CurrentExecuteAsUserExists = NULL
    SET @CurrentUserAccess = NULL
    SET @CurrentIsReadOnly = NULL
    SET @CurrentDatabaseState = NULL
    SET @CurrentInStandby = NULL
    SET @CurrentRecoveryModel = NULL

    SET @CurrentReplicaID = NULL
    SET @CurrentAvailabilityGroupID = NULL
    SET @CurrentAvailabilityGroup = NULL
    SET @CurrentAvailabilityGroupRole = NULL
    SET @CurrentDatabaseMirroringRole = NULL

    SET @CurrentCommand = NULL

    DELETE FROM @tmpIndexesStatistics

  END

  ----------------------------------------------------------------------------------------------------
  --// Log completing information                                                                 //--
  ----------------------------------------------------------------------------------------------------

  Logging:
  SET @EndMessage = 'Date and time: ' + CONVERT(nvarchar,SYSDATETIME(),120)
  RAISERROR('%s',10,1,@EndMessage) WITH NOWAIT

  RAISERROR(@EmptyLine,10,1) WITH NOWAIT

  IF @ReturnCode <> 0
  BEGIN
    RETURN @ReturnCode
  END

  ----------------------------------------------------------------------------------------------------

END

GO
IF (SELECT [Value] FROM #Config WHERE Name = 'CreateJobs') = 'Y'
    AND SERVERPROPERTY('EngineEdition') NOT IN(4, 5)
    AND (IS_SRVROLEMEMBER('sysadmin') = 1 OR (DB_ID('rdsadmin') IS NOT NULL AND SUSER_SNAME(0x01) = 'rdsa'))
    AND (SELECT [compatibility_level] FROM sys.databases WHERE database_id = DB_ID()) >= 90
    AND NOT (EXISTS (SELECT * FROM #Config WHERE Name = 'BackupDirectory' AND [Value] IS NOT NULL) AND EXISTS (SELECT * FROM #Config WHERE Name = 'BackupURL' AND [Value] IS NOT NULL))
    AND NOT (EXISTS (SELECT * FROM #Config WHERE Name = 'BackupURL' AND [Value] IS NOT NULL) AND EXISTS (SELECT * FROM #Config WHERE Name = 'CleanupTime' AND [Value] IS NOT NULL))
BEGIN

  DECLARE @BackupDirectory nvarchar(max)
  DECLARE @BackupURL nvarchar(max)
  DECLARE @CleanupTime int
  DECLARE @OutputFileDirectory nvarchar(max)
  DECLARE @LogToTable nvarchar(max)
  DECLARE @DatabaseName nvarchar(max)

  DECLARE @HostPlatform nvarchar(max)
  DECLARE @DirectorySeparator nvarchar(max)
  DECLARE @LogDirectory nvarchar(max)

  DECLARE @TokenServer nvarchar(max)
  DECLARE @TokenJobID nvarchar(max)
  DECLARE @TokenJobName nvarchar(max)
  DECLARE @TokenStepID nvarchar(max)
  DECLARE @TokenStepName nvarchar(max)
  DECLARE @TokenDate nvarchar(max)
  DECLARE @TokenTime nvarchar(max)
  DECLARE @TokenLogDirectory nvarchar(max)

  DECLARE @JobDescription nvarchar(max)
  DECLARE @JobCategory nvarchar(max)
  DECLARE @JobOwner nvarchar(max)

  DECLARE @Jobs TABLE (JobID int IDENTITY,
                       [Name] nvarchar(max),
                       CommandTSQL nvarchar(max),
                       CommandCmdExec nvarchar(max),
                       DatabaseName varchar(max),
                       OutputFileNamePart01 nvarchar(max),
                       OutputFileNamePart02 nvarchar(max),
                       Selected bit DEFAULT 0,
                       Completed bit DEFAULT 0)

  DECLARE @CurrentJobID int
  DECLARE @CurrentJobName nvarchar(max)
  DECLARE @CurrentCommandTSQL nvarchar(max)
  DECLARE @CurrentCommandCmdExec nvarchar(max)
  DECLARE @CurrentDatabaseName nvarchar(max)
  DECLARE @CurrentOutputFileNamePart01 nvarchar(max)
  DECLARE @CurrentOutputFileNamePart02 nvarchar(max)

  DECLARE @CurrentJobStepCommand nvarchar(max)
  DECLARE @CurrentJobStepSubSystem nvarchar(max)
  DECLARE @CurrentJobStepDatabaseName nvarchar(max)
  DECLARE @CurrentOutputFileName nvarchar(max)

  DECLARE @Version numeric(18,10) = CAST(LEFT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)),CHARINDEX('.',CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))) - 1) + '.' + REPLACE(RIGHT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)), LEN(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max))) - CHARINDEX('.',CAST(SERVERPROPERTY('ProductVersion') AS nvarchar(max)))),'.','') AS numeric(18,10))

  DECLARE @AmazonRDS bit = CASE WHEN DB_ID('rdsadmin') IS NOT NULL AND SUSER_SNAME(0x01) = 'rdsa' THEN 1 ELSE 0 END

  IF @Version >= 14
  BEGIN
    SELECT @HostPlatform = host_platform
    FROM sys.dm_os_host_info
  END
  ELSE
  BEGIN
    SET @HostPlatform = 'Windows'
  END

  SELECT @DirectorySeparator = CASE
  WHEN @HostPlatform = 'Windows' THEN '\'
  WHEN @HostPlatform = 'Linux' THEN '/'
  END

  SET @TokenServer = '$' + '(ESCAPE_SQUOTE(SRVR))'
  SET @TokenJobID = '$' + '(ESCAPE_SQUOTE(JOBID))'
  SET @TokenStepID = '$' + '(ESCAPE_SQUOTE(STEPID))'
  SET @TokenDate = '$' + '(ESCAPE_SQUOTE(DATE))'
  SET @TokenTime = '$' + '(ESCAPE_SQUOTE(TIME))'

  IF @Version >= 13
  BEGIN
    SET @TokenJobName = '$' + '(ESCAPE_SQUOTE(JOBNAME))'
    SET @TokenStepName = '$' + '(ESCAPE_SQUOTE(STEPNAME))'
  END

  IF @Version >= 12 AND @HostPlatform = 'Windows'
  BEGIN
    SET @TokenLogDirectory = '$' + '(ESCAPE_SQUOTE(SQLLOGDIR))'
  END

  SELECT @BackupDirectory = Value
  FROM #Config
  WHERE [Name] = 'BackupDirectory'

  SELECT @BackupURL = Value
  FROM #Config
  WHERE [Name] = 'BackupURL'

  SELECT @CleanupTime = Value
  FROM #Config
  WHERE [Name] = 'CleanupTime'

  SELECT @OutputFileDirectory = Value
  FROM #Config
  WHERE [Name] = 'OutputFileDirectory'

  SELECT @LogToTable = Value
  FROM #Config
  WHERE [Name] = 'LogToTable'

  SELECT @DatabaseName = Value
  FROM #Config
  WHERE [Name] = 'DatabaseName'

  IF @Version >= 11
  BEGIN
    SELECT @LogDirectory = [path]
    FROM sys.dm_os_server_diagnostics_log_configurations
  END
  ELSE
  BEGIN
    SELECT @LogDirectory = LEFT(CAST(SERVERPROPERTY('ErrorLogFileName') AS nvarchar(max)),LEN(CAST(SERVERPROPERTY('ErrorLogFileName') AS nvarchar(max))) - CHARINDEX('\',REVERSE(CAST(SERVERPROPERTY('ErrorLogFileName') AS nvarchar(max)))))
  END

  IF @OutputFileDirectory IS NOT NULL AND RIGHT(@OutputFileDirectory,1) = @DirectorySeparator
  BEGIN
    SET @OutputFileDirectory = LEFT(@OutputFileDirectory, LEN(@OutputFileDirectory) - 1)
  END

  IF @LogDirectory IS NOT NULL AND RIGHT(@LogDirectory,1) = @DirectorySeparator
  BEGIN
    SET @LogDirectory = LEFT(@LogDirectory, LEN(@LogDirectory) - 1)
  END

  SET @JobDescription = 'Source: https://ola.hallengren.com'
  SET @JobCategory = 'Database Maintenance'

  IF @AmazonRDS = 0
  BEGIN
    SET @JobOwner = SUSER_SNAME(0x01)
  END

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01, OutputFileNamePart02)
  SELECT 'DatabaseBackup - SYSTEM_DATABASES - FULL',
         'EXECUTE [dbo].[DatabaseBackup]' + CHAR(13) + CHAR(10) + '@Databases = ''SYSTEM_DATABASES'',' + CHAR(13) + CHAR(10) + CASE WHEN @BackupURL IS NOT NULL THEN '@URL = N''' + REPLACE(@BackupURL,'''','''''') + '''' ELSE '@Directory = ' + ISNULL('N''' + REPLACE(@BackupDirectory,'''','''''') + '''','NULL') END + ',' + CHAR(13) + CHAR(10) + '@BackupType = ''FULL'',' + CHAR(13) + CHAR(10) + '@Verify = ''Y'',' + CHAR(13) + CHAR(10) + '@CleanupTime = ' + ISNULL(CAST(@CleanupTime AS nvarchar),'NULL') + ',' + CHAR(13) + CHAR(10) + '@Checksum = ''Y'',' + CHAR(13) + CHAR(10) + '@LogToTable = ''' + @LogToTable + '''',
         @DatabaseName,
         'DatabaseBackup',
         'FULL'

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01, OutputFileNamePart02)
  SELECT 'DatabaseBackup - USER_DATABASES - DIFF',
         'EXECUTE [dbo].[DatabaseBackup]' + CHAR(13) + CHAR(10) + '@Databases = ''USER_DATABASES'',' + CHAR(13) + CHAR(10) + CASE WHEN @BackupURL IS NOT NULL THEN '@URL = N''' + REPLACE(@BackupURL,'''','''''') + '''' ELSE '@Directory = ' + ISNULL('N''' + REPLACE(@BackupDirectory,'''','''''') + '''','NULL') END + ',' + CHAR(13) + CHAR(10) + '@BackupType = ''DIFF'',' + CHAR(13) + CHAR(10) + '@Verify = ''Y'',' + CHAR(13) + CHAR(10) + '@CleanupTime = ' + ISNULL(CAST(@CleanupTime AS nvarchar),'NULL') + ',' + CHAR(13) + CHAR(10) + '@Checksum = ''Y'',' + CHAR(13) + CHAR(10) + '@LogToTable = ''' + @LogToTable + '''',
          @DatabaseName,
         'DatabaseBackup',
         'DIFF'

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01, OutputFileNamePart02)
  SELECT 'DatabaseBackup - USER_DATABASES - FULL',
         'EXECUTE [dbo].[DatabaseBackup]' + CHAR(13) + CHAR(10) + '@Databases = ''USER_DATABASES'',' + CHAR(13) + CHAR(10) + CASE WHEN @BackupURL IS NOT NULL THEN '@URL = N''' + REPLACE(@BackupURL,'''','''''') + '''' ELSE '@Directory = ' + ISNULL('N''' + REPLACE(@BackupDirectory,'''','''''') + '''','NULL') END + ',' + CHAR(13) + CHAR(10) + '@BackupType = ''FULL'',' + CHAR(13) + CHAR(10) + '@Verify = ''Y'',' + CHAR(13) + CHAR(10) + '@CleanupTime = ' + ISNULL(CAST(@CleanupTime AS nvarchar),'NULL') + ',' + CHAR(13) + CHAR(10) + '@Checksum = ''Y'',' + CHAR(13) + CHAR(10) + '@LogToTable = ''' + @LogToTable + '''',
         @DatabaseName,
         'DatabaseBackup',
         'FULL'

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01, OutputFileNamePart02)
  SELECT 'DatabaseBackup - USER_DATABASES - LOG',
         'EXECUTE [dbo].[DatabaseBackup]' + CHAR(13) + CHAR(10) + '@Databases = ''USER_DATABASES'',' + CHAR(13) + CHAR(10) + CASE WHEN @BackupURL IS NOT NULL THEN '@URL = N''' + REPLACE(@BackupURL,'''','''''') + '''' ELSE '@Directory = ' + ISNULL('N''' + REPLACE(@BackupDirectory,'''','''''') + '''','NULL') END + ',' + CHAR(13) + CHAR(10) + '@BackupType = ''LOG'',' + CHAR(13) + CHAR(10) + '@Verify = ''Y'',' + CHAR(13) + CHAR(10) + '@CleanupTime = ' + ISNULL(CAST(@CleanupTime AS nvarchar),'NULL') + ',' + CHAR(13) + CHAR(10) + '@Checksum = ''Y'',' + CHAR(13) + CHAR(10) + '@LogToTable = ''' + @LogToTable + '''',
         @DatabaseName,
         'DatabaseBackup',
         'LOG'

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01)
  SELECT 'DatabaseIntegrityCheck - SYSTEM_DATABASES',
         'EXECUTE [dbo].[DatabaseIntegrityCheck]' + CHAR(13) + CHAR(10) + '@Databases = ''SYSTEM_DATABASES'',' + CHAR(13) + CHAR(10) + '@LogToTable = ''' + @LogToTable + '''',
         @DatabaseName,
         'DatabaseIntegrityCheck'

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01)
  SELECT 'DatabaseIntegrityCheck - USER_DATABASES',
         'EXECUTE [dbo].[DatabaseIntegrityCheck]' + CHAR(13) + CHAR(10) + '@Databases = ''USER_DATABASES' + CASE WHEN @AmazonRDS = 1 THEN ', -rdsadmin' ELSE '' END + ''',' + CHAR(13) + CHAR(10) + '@LogToTable = ''' + @LogToTable + '''',
         @DatabaseName,
         'DatabaseIntegrityCheck'

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01)
  SELECT 'IndexOptimize - USER_DATABASES',
         'EXECUTE [dbo].[IndexOptimize]' + CHAR(13) + CHAR(10) + '@Databases = ''USER_DATABASES'',' + CHAR(13) + CHAR(10) + '@LogToTable = ''' + @LogToTable + '''',
         @DatabaseName,
         'IndexOptimize'

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01)
  SELECT 'sp_delete_backuphistory',
         'DECLARE @CleanupDate datetime' + CHAR(13) + CHAR(10) + 'SET @CleanupDate = DATEADD(dd,-30,GETDATE())' + CHAR(13) + CHAR(10) + 'EXECUTE dbo.sp_delete_backuphistory @oldest_date = @CleanupDate',
         'msdb',
         'sp_delete_backuphistory'

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01)
  SELECT 'sp_purge_jobhistory',
         'DECLARE @CleanupDate datetime' + CHAR(13) + CHAR(10) + 'SET @CleanupDate = DATEADD(dd,-30,GETDATE())' + CHAR(13) + CHAR(10) + 'EXECUTE dbo.sp_purge_jobhistory @oldest_date = @CleanupDate',
         'msdb',
         'sp_purge_jobhistory'

  INSERT INTO @Jobs ([Name], CommandTSQL, DatabaseName, OutputFileNamePart01)
  SELECT 'CommandLog Cleanup',
         'DELETE FROM [dbo].[CommandLog]' + CHAR(13) + CHAR(10) + 'WHERE StartTime < DATEADD(dd,-30,GETDATE())',
         @DatabaseName,
         'CommandLogCleanup'

  INSERT INTO @Jobs ([Name], CommandCmdExec, OutputFileNamePart01)
  SELECT 'Output File Cleanup',
         'cmd /q /c "For /F "tokens=1 delims=" %v In (''ForFiles /P "' + COALESCE(@OutputFileDirectory,@TokenLogDirectory,@LogDirectory) + '" /m *_*_*_*.txt /d -30 2^>^&1'') do if EXIST "' + COALESCE(@OutputFileDirectory,@TokenLogDirectory,@LogDirectory) + '"\%v echo del "' + COALESCE(@OutputFileDirectory,@TokenLogDirectory,@LogDirectory) + '"\%v& del "' + COALESCE(@OutputFileDirectory,@TokenLogDirectory,@LogDirectory) + '"\%v"',
         'OutputFileCleanup'

  IF @AmazonRDS = 1
  BEGIN
   UPDATE @Jobs
   SET Selected = 1
   WHERE [Name] IN('DatabaseIntegrityCheck - USER_DATABASES','IndexOptimize - USER_DATABASES','CommandLog Cleanup')
  END
  ELSE IF SERVERPROPERTY('EngineEdition') = 8
  BEGIN
   UPDATE @Jobs
   SET Selected = 1
   WHERE [Name] IN('DatabaseIntegrityCheck - SYSTEM_DATABASES','DatabaseIntegrityCheck - USER_DATABASES','IndexOptimize - USER_DATABASES','CommandLog Cleanup','sp_delete_backuphistory','sp_purge_jobhistory')
  END
  ELSE IF @HostPlatform = 'Windows'
  BEGIN
   UPDATE @Jobs
   SET Selected = 1
  END
  ELSE IF @HostPlatform = 'Linux'
  BEGIN
   UPDATE @Jobs
   SET Selected = 1
   WHERE CommandTSQL IS NOT NULL
  END

  WHILE EXISTS (SELECT * FROM @Jobs WHERE Completed = 0 AND Selected = 1)
  BEGIN
    SELECT @CurrentJobID = JobID,
           @CurrentJobName = [Name],
           @CurrentCommandTSQL = CommandTSQL,
           @CurrentCommandCmdExec = CommandCmdExec,
           @CurrentDatabaseName = DatabaseName,
           @CurrentOutputFileNamePart01 = OutputFileNamePart01,
           @CurrentOutputFileNamePart02 = OutputFileNamePart02
    FROM @Jobs
    WHERE Completed = 0
    AND Selected = 1
    ORDER BY JobID ASC

    IF @CurrentCommandTSQL IS NOT NULL AND @AmazonRDS = 1
    BEGIN
      SET @CurrentJobStepSubSystem = 'TSQL'
      SET @CurrentJobStepCommand = @CurrentCommandTSQL
      SET @CurrentJobStepDatabaseName = @CurrentDatabaseName
    END
    ELSE IF @CurrentCommandTSQL IS NOT NULL AND SERVERPROPERTY('EngineEdition') = 8
    BEGIN
      SET @CurrentJobStepSubSystem = 'TSQL'
      SET @CurrentJobStepCommand = @CurrentCommandTSQL
      SET @CurrentJobStepDatabaseName = @CurrentDatabaseName
    END
    ELSE IF @CurrentCommandTSQL IS NOT NULL AND @HostPlatform = 'Linux'
    BEGIN
      SET @CurrentJobStepSubSystem = 'TSQL'
      SET @CurrentJobStepCommand = @CurrentCommandTSQL
      SET @CurrentJobStepDatabaseName = @CurrentDatabaseName
    END
    ELSE IF @CurrentCommandTSQL IS NOT NULL AND @HostPlatform = 'Windows' AND @Version >= 11
    BEGIN
      SET @CurrentJobStepSubSystem = 'TSQL'
      SET @CurrentJobStepCommand = @CurrentCommandTSQL
      SET @CurrentJobStepDatabaseName = @CurrentDatabaseName
    END
    ELSE IF @CurrentCommandTSQL IS NOT NULL AND @HostPlatform = 'Windows' AND @Version < 11
    BEGIN
      SET @CurrentJobStepSubSystem = 'CMDEXEC'
      SET @CurrentJobStepCommand = 'sqlcmd -E -S ' + @TokenServer + ' -d ' + @CurrentDatabaseName + ' -Q "' + REPLACE(@CurrentCommandTSQL,(CHAR(13) + CHAR(10)),' ') + '" -b'
      SET @CurrentJobStepDatabaseName = NULL
    END
    ELSE IF @CurrentCommandCmdExec IS NOT NULL AND @HostPlatform = 'Windows'
    BEGIN
      SET @CurrentJobStepSubSystem = 'CMDEXEC'
      SET @CurrentJobStepCommand = @CurrentCommandCmdExec
      SET @CurrentJobStepDatabaseName = NULL
    END

    IF @AmazonRDS = 0 AND SERVERPROPERTY('EngineEdition') <> 8
    BEGIN
      SET @CurrentOutputFileName = COALESCE(@OutputFileDirectory,@TokenLogDirectory,@LogDirectory) + @DirectorySeparator + ISNULL(CASE WHEN @TokenJobName IS NULL THEN @CurrentOutputFileNamePart01 END + '_','') + ISNULL(CASE WHEN @TokenJobName IS NULL THEN @CurrentOutputFileNamePart02 END + '_','') + ISNULL(@TokenJobName,@TokenJobID) + '_' + @TokenStepID + '_' + @TokenDate + '_' + @TokenTime + '.txt'
      IF LEN(@CurrentOutputFileName) > 200 SET @CurrentOutputFileName = COALESCE(@OutputFileDirectory,@TokenLogDirectory,@LogDirectory) + @DirectorySeparator + ISNULL(CASE WHEN @TokenJobName IS NULL THEN @CurrentOutputFileNamePart01 END + '_','') + ISNULL(@TokenJobName,@TokenJobID) + '_' + @TokenStepID + '_' + @TokenDate + '_' + @TokenTime + '.txt'
      IF LEN(@CurrentOutputFileName) > 200 SET @CurrentOutputFileName = COALESCE(@OutputFileDirectory,@TokenLogDirectory,@LogDirectory) + @DirectorySeparator + ISNULL(@TokenJobName,@TokenJobID) + '_' + @TokenStepID + '_' + @TokenDate + '_' + @TokenTime + '.txt'
      IF LEN(@CurrentOutputFileName) > 200 SET @CurrentOutputFileName = NULL
    END

    IF @CurrentJobStepSubSystem IS NOT NULL AND @CurrentJobStepCommand IS NOT NULL AND NOT EXISTS (SELECT * FROM msdb.dbo.sysjobs WHERE [name] = @CurrentJobName)
    BEGIN
      EXECUTE msdb.dbo.sp_add_job @job_name = @CurrentJobName, @description = @JobDescription, @category_name = @JobCategory, @owner_login_name = @JobOwner
      EXECUTE msdb.dbo.sp_add_jobstep @job_name = @CurrentJobName, @step_name = @CurrentJobName, @subsystem = @CurrentJobStepSubSystem, @command = @CurrentJobStepCommand, @output_file_name = @CurrentOutputFileName, @database_name = @CurrentJobStepDatabaseName
      EXECUTE msdb.dbo.sp_add_jobserver @job_name = @CurrentJobName
    END

    UPDATE Jobs
    SET Completed = 1
    FROM @Jobs Jobs
    WHERE JobID = @CurrentJobID

    SET @CurrentJobID = NULL
    SET @CurrentJobName = NULL
    SET @CurrentCommandTSQL = NULL
    SET @CurrentCommandCmdExec = NULL
    SET @CurrentDatabaseName = NULL
    SET @CurrentOutputFileNamePart01 = NULL
    SET @CurrentOutputFileNamePart02 = NULL
    SET @CurrentJobStepCommand = NULL
    SET @CurrentJobStepSubSystem = NULL
    SET @CurrentJobStepDatabaseName = NULL
    SET @CurrentOutputFileName = NULL

  END

END
GO