查看表空间使用的两条常用SQL

1. 查看表空间大小： 　　SELECT tablespace_name, SUM(bytes)/1024/1024 total FROM DBA_FREE_SPACE GROUP BY tablespace_name ORDER BY 2 DESC; 　　SQL> SELECT tablespace_name, SUM(bytes)/1024/1024 || 'MB' total FROM DB

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