--SQL SERVER 日志清除
    USE [master]
    GO
    ALTER DATABASE DNName SET RECOVERY SIMPLE WITH NO_WAIT
    GO
    ALTER DATABASE DNName SET RECOVERY SIMPLE   --简单模式
    GO
    USE DNName
    GO
    DBCC SHRINKFILE (N'DNName_Log' , 11, TRUNCATEONLY)
    GO
    USE [master]
    GO
    ALTER DATABASE DNName SET RECOVERY FULL WITH NO_WAIT
    GO
    ALTER DATABASE DNName SET RECOVERY FULL  --还原为完全模式
    GO