---清空日志: USE [master] GO ALTER DATABASE cits SET RECOVERY SIMPLE WITH NO_WAIT GO ALTER DATABASE cits SET RECOVERY SIMPLE --简单模式 GO USE cits GO DBCC SHRINKFILE (N'cits_log' , 11, TRUNCATEONLY) GO USE [master] GO ALTER DATABASE cits SET RECOVERY FULL WITH NO_WAIT GO ALTER DATABASE cits SET RECOVERY FULL --还原为完全模式 GO