oralce查看某張表佔用空間大小

一、查詢某用戶下表使用大小的前10名數據庫 select * from (select a.segment_name,(bytes/(1024*1024)) sizez ,a.segment_type from dba_segments a where owner='risk' order by bytes desc ) where rownum <=10;spa 二、當使用drop table

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