SqlServer清除日志并收缩数据库
在sqlserver 数据库的使用过程中，特别是频繁更新的系统中，会产生大量的日志文件。 由于商业化的运作，我们的数据库都是有备份的，在隔一段时间之后，我们就可以把日志数据清除掉。由于现在很多时候我们使用的都是虚拟主机，空间商在安全策略上做了限制，导
在sqlserver 数据库的使用过程中，特别是频繁更新的系统中，会产生大量的日志文件。
由于商业化的运作，我们的数据库都是有备份的，在隔一段时间之后，我们就可以把日志数据清除掉。由于现在很多时候我们使用的都是虚拟主机，空间商在安全策略上做了限制，导致没有办法清除我们的数据库日志。
唯一的办法就是利用dbower的权限打开查询分析器，使用如下的Sql语句就可以清空并收缩你的数据库空间了：
1.清空日志
DUMP TRANSACTION [yourdbname] WITH NO_LOG;
2.截断数据库日志
BACKUP LOG [yourdbname]WITH NO_LOG;
3.收缩数据库
DBCC SHRINKDATABASE([yourdbname]);
PS：以上Sql语句的顺序不能打乱
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