云解析DNS dba_segments sys.seg 的相关内容

文章 2015-05-06 来自：开发者社区

深度解析dba_segments和sys.seg$中的细节差异(下)

继续昨天的内容 http://blog.itpub.net/23718752/viewspace-1624762/ 我们已经根据dba_segments和sys.seg$的不同发现最后的差距有2T左右，已经定位到了dba_segments的一些细节信息，可以发现其实还是一个层级的调用关系。我们把SYS_DBA_SEGS是一个处于中间层的角色，它的定义是3个union all，可以从定义...

文章 2015-05-05 来自：开发者社区

深度解析dba_segments和sys.seg$中的细节差异(上)

今天在查看系统空间使用情况的时候，发现一个细节的问题，自己死磕了一把，还是发现了不少有价值的东西。事情的起因是我在使用脚本在某个环境中查看每个用户所占有的空间的时候，如果发现有些临时用户占用的空间过大，就需要协调开发去做一些清理，但是这次用户占用的空间表空间使用情况有很大的差异。查看用户占用空间的情况如下，可以看到总体用户占用的空间在2T多一些。USERNAME &...

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更新时间 2024-03-25 14:35:30

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