SELECT a.tablespace_name "表空间名",total 表空间大小,free 表空间剩余大小,(total-free) 表空间使用大小,ROUND((total-free)/total,4)*100 "使用率 %"FROM (SELECT tablespace_name,SUM(bytes) free FROM DBA_FREE_SPACEGROUP BY tablespace_name ) a,(SELECT tablespace_name,SUM(bytes) total FROM DBA_DATA_FILESGROUP BY t Read More