change database name sql code example

Example 1: sql server rename database

ALTER DATABASE MyTestDatabase MODIFY NAME = MyTestDatabaseCopy ;

Example 2: alter database name script

USE master;  
GO  
ALTER DATABASE MyTestDatabase SET SINGLE_USER WITH ROLLBACK IMMEDIATE
GO
ALTER DATABASE MyTestDatabase MODIFY NAME = MyTestDatabaseCopy ;
GO  
ALTER DATABASE MyTestDatabaseCopy SET MULTI_USER
GO