diff --git a/database/YANLIB.sql b/database/YANLIB.sql
new file mode 100644
index 00000000..0fceaac2
--- /dev/null
+++ b/database/YANLIB.sql
@@ -0,0 +1,38 @@
+CREATE DATABASE YANLIB;
+
+USE YANLIB;
+
+CREATE SCHEMA sample;
+
+CREATE TABLE sample.DeveloperTypes
+(
+    Code INT PRIMARY KEY NOT NULL,
+    Name NVARCHAR(100) NOT NULL,
+    IsActive BIT NOT NULL,
+    CreatedDate DATETIME NOT NULL,
+    ModifiedDate DATETIME
+);
+
+CREATE TABLE sample.Developers
+(
+    Id VARCHAR(20) PRIMARY KEY NOT NULL,
+    Name NVARCHAR(100) NOT NULL,
+    Phone VARCHAR(20),
+    IdCard VARCHAR(20) NOT NULL,
+    DeveloperTypeCode INT NOT NULL,
+    IsActive BIT NOT NULL,
+    Version INT NOT NULL,
+    CreatedDate DATETIME NOT NULL,
+    ModifiedDate DATETIME,
+    FOREIGN KEY (DeveloperTypeCode) REFERENCES sample.DeveloperTypes(Code)
+);
+
+CREATE TABLE sample.Certificates
+(
+    Id VARCHAR(20) PRIMARY KEY NOT NULL,
+    Name NVARCHAR(100) NOT NULL,
+    GPA DOUBLE PRECISION,
+    DeveloperId VARCHAR(20),
+    CreatedDate DATETIME NOT NULL,
+    ModifiedDate DATETIME
+);