USE[master]
GO
ALTER DATABASE mydbname SET RECOVERY SIMPLE WITH NO_WAIT
GO
ALTER DATABASE mydbname SET RECOVERY SIMPLE --简单模式
GO
USE mydbname
GO
DBCC SHRINKFILE (N'mydbname_Log' , 11, TRUNCATEONLY)
GO
USE[master]
GO
ALTER DATABASE mydbname SET RECOVERY FULL WITH NO_WAIT
GO
ALTER DATABASE mydbname SET RECOVERY FULL --还原为完全模式
GO