Home Database Mysql Tutorial Oracle教程 误添加数据文件删除方法

Oracle教程 误添加数据文件删除方法

Jun 07, 2016 pm 06:06 PM
oracle File deletion

今天又有朋友问到,当向一个表空间错误的添加了一个数据文件,如何来将这个文件删除?

如果是在Oracle10g之前,删除一个表空间中的数据文件后,其文件在数据库数据字典中会仍然存在,除非你删除表空间,否则文件信息不会清除。

  但是从Oracle10gR2开始,Oracle允许我们彻底删除一个空文件,不留痕迹。

  但是注意:如果你向SYSTEM表空间错误的添加了一个文件,那么就让它在哪里好了,不要动。

  对于普通表空间,则可以参考以下步骤处理。

  数据库版本Oracle10gR2:

  向USERS表空间增加一个数据文件:

  确认表空间文件信息:

确认表空间未被存储占用:

  删除表空间中的空数据文件:

  检查数据字典,这个空文件的信息已经被彻底清除了:

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