MS SQL SERVER 数据库日志压缩方法与代码
MS SQL SERVER 数据库日志压缩方法与代码
MS SQL性能是很不错的,但是数据库用了一段时间之后,数据库却变得很大,实际的数据量不大。一般都是数据库日志引起的!数据库日志的增长可以达到好几百M。网上的MSSQL虚拟主机价格也贵,要想不让数据库超容,只好压缩下数据库日志,或者删除数据库日志。
下面我给大家介绍一个方法
1、打开企业管理器
2、打开要处理的数据库
3、点击菜单>工具>SQL查询分析器
4、在输入窗口里面输入:
代码如下:
DUMP TRANSACTION [数据库名] WITH NO_LOG
BACKUP LOG [数据库名] WITH NO_LOG
DBCC SHRINKDATABASE([数据库名])
点击执行!这样子数据库就操作成功了。
程序里面的方法:
压缩数据库日志
--1.清空日志
exec('DUMP TRANSACTION ['+@dbname+'] WITH NO_LOG')
--2.截断事务日志:
exec('BACKUP LOG ['+@dbname+'] WITH NO_LOG')
--3.收缩数据库文件(如果不压缩,数据库的文件不会减小
exec('DBCC SHRINKDATABASE(['+@dbname+'])')

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