Added FactHistoricalViralLoad script. Yet to add PBFW logi

Scripts/NDWH/C&T FACT TABLES/FactHistoricalViralLoad.sql

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+TRUNCATE TABLE ndwh.dbo.FactViralLoad_Hist;
+
+DECLARE @start_date DATE;
+
+SELECT @start_date = dateadd(month, -12, eomonth(dateadd(month, -2, getdate())));
+
+DECLARE @end_date DATE;
+
+SELECT @end_date = eomonth(dateadd(month, -2, getdate()));
+
+--- create a temp table to store end of month for each month
+with dates as (     
+				SELECT datefromparts(year(@start_date), month(@start_date), 1) as dte
+				UNION ALL
+				SELECT dateadd(month, 1, dte) --incrementing month by month until the date is less than or equal to @end_date
+				FROM dates
+				WHERE dateadd(month, 1, dte) <= @end_date
+			)
+SELECT 
+	eomonth(dte) as end_date
+INTO #months
+FROM dates
+OPTION (maxrecursion 0);   
+
+--declare as of date
+DECLARE @as_of_date As DATE;
+
+--declare cursor
+DECLARE cursor_AsOfDates CURSOR FOR
+SELECT * FROM #months
+
+OPEN cursor_AsOfDates
+
+FETCH NEXT FROM cursor_AsOfDates INTO @as_of_date
+WHILE @@FETCH_STATUS = 0
+
+BEGIN
+WITH viralLoad As (
+					SELECT	DISTINCT	
+					Labs.PatientPk,
+					Labs.SiteCode,
+					VisitID,
+					art.StartARTDate,
+					[OrderedbyDate],
+					[ReportedbyDate],
+					Patient.DOB,
+					AgeAsOfDate = Datediff(year,Patient.DOB,@as_of_date),
+					[TestName],
+					TestResult,
+					Labs.[Emr],
+					Labs.[Project],
+					CASE 
+						WHEN datediff(month,art.StartARTDate, @as_of_date) >=3 THEN 1  
+						WHEN DATEDIFF(MONTH, art.StartARTDate, @as_of_date) <3 THEN 0
+					END As EligibleVL,
+					CASE 
+						WHEN datediff(month,[OrderedbyDate],@as_of_date) <= 6 and  Datediff(year,Patient.DOB,@as_of_date) <= 24 THEN 1
+						WHEN datediff(month,[OrderedbyDate],@as_of_date) <= 12 and  Datediff(year,Patient.DOB,@as_of_date) > 24 THEN 1 
+						ELSE 0
+					END As IsValidVL,
+					CASE 
+						WHEN IsNumeric([TestResult]) = 1 THEN 
+																CASE 
+																	WHEN cast(replace([TestResult], ',', '') as  float) < 200.00 THEN 1 
+																	ELSE 0 
+																END 
+						ELSE 
+							CASE 
+								WHEN [TestResult]  in ('undetectable','NOT DETECTED','0 copies/ml','LDL','Less than Low Detectable Level') THEN 1 
+								ELSE 0 
+							END  
+					END as VLSup,
+					@as_of_date As AsOfDate,
+					getdate() As LoadDate
+					---into  ndwh.dbo.FactViralLoad_Hist
+			FROM  ODS.dbo.CT_ARTPatients art 
+			join ODS.dbo.CT_PatientLabs Labs    ---Visits to know whether the the pregnant or not(Pbfw)
+			ON	art.PatientPK = labs.Patientpk and
+				art.SiteCode = labs.SiteCode
+			Left join ODS.dbo.CT_patient  patient
+			on art.PatientPK = patient.Patientpk and
+				art.SiteCode = patient.SiteCode
+
+			where TestName = 'Viral Load'
+					and TestName <>'CholesterolLDL (mmol/L)' and TestName <> 'Hepatitis C viral load' 
+					and TestResult is not null 
+					and Labs.SiteCode =12601 and art.PatientPK = 10 
+					and [OrderedbyDate] <= @as_of_date
+				),
+
+Visits As(
+
+select	Visits.SiteCode,
+		Visits.PatientPK,
+		VisitDate,Pregnant,
+		Breastfeeding,
+		NextAppointmentDate ,
+		@as_of_date As AsOfDate
+		from ODS.DBO.CT_PatientVisits Visits
+		join viralLoad 
+		on  Visits.SiteCode = viralLoad.Sitecode and Visits.PatientPK = viralLoad.PatientPK
+where Visits.VisitDate <= @as_of_date and  Visits.SiteCode =12601 and Visits.PatientPK = 10
+
+),
+
+MaxVisitsByAsOf As (
+   select 
+   row_number() over(partition by  SiteCode, PatientPK,AsOfDate order by VisitDate desc) as rank, 
+   SiteCode,
+   PatientPK,
+   VisitDate,
+   AsOfDate,
+   NextAppointmentDate,
+   Pregnant,
+   Breastfeeding
+   from Visits
+),
+RankMaxVisitDateAsOf As(
+select SiteCode,PatientPK, VisitDate,Pregnant,Breastfeeding,NextAppointmentDate,AsOfDate
+from MaxVisitsByAsOf
+where rank =1
+
+
+),
+
+MaxOrderedbyDateByAsOfDate As (
+                     select 
+						row_number() over(partition by  SiteCode, PatientPK,AsOfDate order by [OrderedbyDate] desc) as rank, 
+						SiteCode,
+						PatientPK,
+						StartARTDate,
+						DOB,
+						AgeAsOfDate,
+						[OrderedbyDate],
+						[ReportedbyDate],
+						EligibleVL,
+						IsValidVL,
+						VLSup,
+						AsOfDate,
+						[TestName],
+						TestResult,
+						[Emr],
+						[Project]
+					from viralLoad
+					where [OrderedbyDate] <= AsOfDate
+
+			),
+MaxOrderedbyDateByAsOfDate_Final As (
+select SiteCode,PatientPK,StartARTDate,DOB,AgeAsOfDate,OrderedbyDate,ReportedbyDate,EligibleVL,IsValidVL,VLSup,AsOfDate,TestName,TestResult,Emr,Project 
+from MaxOrderedbyDateByAsOfDate
+where rank =1
+
+),
+Combined As(
+ Select OrderedFinal.SiteCode,OrderedFinal.PatientPK,StartARTDate,DOB,AgeAsOfDate,OrderedbyDate,MaxVisitAsOf.VisitDate,MaxVisitAsOf.Pregnant,MaxVisitAsOf.Breastfeeding,ReportedbyDate,EligibleVL,IsValidVL,VLSup,OrderedFinal.AsOfDate,TestName,TestResult,Emr,Project  
+ from MaxOrderedbyDateByAsOfDate_Final OrderedFinal
+ join RankMaxVisitDateAsOf MaxVisitAsOf
+ on OrderedFinal.SiteCode =  MaxVisitAsOf.SiteCode and OrderedFinal.PatientPK =  MaxVisitAsOf.PatientPK
+ and OrderedFinal.AsOfDate =  MaxVisitAsOf.AsOfDate
+
+)
+
+insert into ndwh.dbo.FactViralLoad_Hist( SiteCode,PatientPK,StartARTDate,DOB,VisitDate,Pregnant,Breastfeeding,AgeAsOfDate,OrderedbyDate,ReportedbyDate,EligibleVL,IsValidVL,VLSup,AsOfDate,TestName,TestResult,Emr,Project)
+
+select  SiteCode,PatientPK,StartARTDate,DOB,VisitDate,Pregnant,Breastfeeding,AgeAsOfDate,OrderedbyDate,ReportedbyDate,EligibleVL,IsValidVL,VLSup,AsOfDate,TestName,TestResult,Emr,Project  
+from Combined
+
+Update a
+set   IsPBFW= case
+						WHEN (Pregnant ='yes' or  Breastfeeding ='yes')  THEN 1
+						ELSE 0
+						END
+from ndwh.dbo.FactViralLoad_Hist a;
+
+Update a
+set   IsValidVL= case
+						WHEN datediff(month,[OrderedbyDate],a.AsOfDate) <= 6  THEN 1
+						END
+from ndwh.dbo.FactViralLoad_Hist a
+where IsPBFW = 1
+
+
+
+fetch next from cursor_AsOfDates into @as_of_date
+end
+drop table #months
+close cursor_AsOfDates
+deallocate cursor_AsOfDates
+
+
+