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我有一个问题，即我发现我的mdf 大小：13 GB和ldf 大小：96 GB，我从数据库表中删除了所有记录以减少 mdf 和 ldf 的大小，我确实使用了 DATA_AQUA go exec sp_updatestats go即使DBCC SHOW_STATISTICS命令给出空值，我的期望是我删除了所有记录，但它应该显示较小的大小，但它仍然显示旧大小，如何解决这个问题请帮助我。

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Start reading the documentation.

NONE of your steps will make any of those files smaller per documentation.

  • The LDF points to you not having made a backup and truncated the log, quite "ever". That is significantly bad and I dare saying the file size is not your problem but the fact that you have no backup and do not seem to care about your data.

  • Once you have backups, you can reinitialize the LDF using a sequence of switching to simple recovery then running a shrink operation.

  • Regarding the MDF - same thing. You have to reorganize the database using a maintenance task to shrink it.

Why do you think that deleting records, using updatestats will magically shrink the file?

于 2012-12-10T04:45:16.207 回答
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对于 LDF，您应该进行常规事务日志备份，或者从完全恢复模式切换到简单恢复模式。它会增长，直到你采取这两个行动之一。请注意，在任何一种情况下，执行操作后都应缩小 ldf文件。

如果您从主数据库中删除了记录，则 mdf 不会自动收缩，但您可以使用与 ldf 相同的收缩机制（又名 database->tasks->shrink->files 或DBCC Shrinkfile (<DBName>, <TargetSize>)

于 2015-04-08T14:16:35.003 回答