I am using SQL Server 2012. I have 2 databases, DB1 and DB2. DB1 contains data for the month of January, February and March. DB2 contains data between February to June. I would like to move the data from DB1 to DB2 so that DB2 contains data from January to June. I have used SQL Server Import and Export Data Wizard and it wizard completed successfully. However I ran into an issue. When I query DB2, I can see duplicates records. Does anyone know how I can merge data without duplicates? Any help is greatly appreciated.