How to Rename a Database in SQL Server - SQL Server DBA Tutorial

In this video you will learn how to rename SQL Server database using SQL Server Management studio (GUI) as well as using T-SQL Script. Video talks about different scenarios where you might have to rename your SQL Server Database.

If connections are open to Database you can use below script to kill the connections and then rename.

USE MASTER

GO

DECLARE @DatabaseName AS VARCHAR(500)

-->Provide the DataBaseName for which want to Kill all processes.

SET @DatabaseName='YourDataBaseName'

DECLARE @Spid INT
DECLARE KillProcessCur CURSOR FOR
  SELECT spid
  FROM   sys.sysprocesses
  WHERE  DB_NAME(dbid) = @DatabaseName

OPEN KillProcessCur

FETCH Next FROM KillProcessCur INTO @Spid

WHILE @@FETCH_STATUS = 0
  BEGIN
      DECLARE @SQL VARCHAR(500)=NULL
      SET @SQL='Kill '+ CAST(@Spid AS VARCHAR(5))
      EXEC (@SQL)
      PRINT 'ProcessID ='+ CAST(@Spid AS VARCHAR(5))
            + ' killed successfull'
      FETCH Next FROM KillProcessCur INTO @Spid
  END
CLOSE KillProcessCur

DEALLOCATE KillProcessCur

Rename DB by using TSQL Script

USE master;
GO
ALTERDATABASE [Demo]
Modify Name = Demo1 
GO