收缩数据库:
DBCC SHRINKDATABASE(database)
SQL2008清空删除日志:
方法一:
USE [master] GO ALTER DATABASE database SET RECOVERY SIMPLE WITH NO_WAIT GO ALTER DATABASE database SET RECOVERY SIMPLE GO USE AFMS GO DBCC SHRINKFILE (N'database' , 11, TRUNCATEONLY) GO USE [master] GO ALTER DATABASE database SET RECOVERY FULL WITH NO_WAIT GO ALTER DATABASE database SET RECOVERY FULL GO
‘在SQL2008中清除日志就必须在简单模式下进行,等清除动作完毕再调回到完全模式。
USE [master] GO ALTER DATABASE DBName SET RECOVERY SIMPLE WITH NO_WAIT GO ALTER DATABASE DBName SET RECOVERY SIMPLE --简单模式 GO USE DNName GO DBCC SHRINKFILE (N'DBName_Log' , 11, TRUNCATEONLY) GO
‘这里的DNName_Log 如果不知道在sys.database_files里是什么名字的话,可以用以下注释的语句进行查询
USE DNName GO SELECT file_id, nameFROM sys.database_files; 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
SQL2005清空删除日志:
Backup Log DNName with no_log ‘这里的DNName是你要收缩的数据库名,自己注意修改下面的数据库名,我就不再注释了。
go dump transaction DNName with no_log go USE DNName DBCC SHRINKFILE (2) Go
sqlserver2000压缩日志
可以将jb51.ldf文件变得很小,方便备份数据库等,在sqlserver查询分析器中执行即可。
DUMP TRANSACTION [jb51] WITH NO_LOG BACKUP LOG [jb51] WITH NO_LOG DBCC SHRINKDATABASE([jb51])