//剩余表空间大小 SELECT SUM(bytes) / (1024 * 1024) AS free_space, tablespace_name FROM dba_free_space GROUP BY tablespace_name;
//表空间大小，已使用，剩余，使用率，剩余率 SELECT a.tablespace_name, a.bytes total, b.bytes used, c.bytes free, (b.bytes * 100) / a.bytes “% USED “, (c.bytes * 100) / a.bytes “% FREE ” FROM sys.sm tsavaila,sys.sm ts_used b, sys.sm$ts_free c WHERE a.tablespace_name = b.tablespace_name AND a.tablespace_name = c.tablespace_name;
–查询表空间使用情况 SELECT UPPER(F.TABLESPACE_NAME) “表空间名”, D.TOT_GROOTTE_MB “表空间大小(M)”, D.TOT_GROOTTE_MB - F.TOTAL_BYTES “已使用空间(M)”, TO_CHAR(ROUND((D.TOT_GROOTTE_MB - F.TOTAL_BYTES) / D.TOT_GROOTTE_MB * 100,2),’990.99’) || ‘%’ “使用比”, F.TOTAL_BYTES “空闲空间(M)”, F.MAX_BYTES “最大块(M)” FROM (SELECT TABLESPACE_NAME, ROUND(SUM(BYTES) / (1024 * 1024), 2) TOTAL_BYTES, ROUND(MAX(BYTES) / (1024 * 1024), 2) MAX_BYTES FROM SYS.DBA_FREE_SPACE GROUP BY TABLESPACE_NAME) F, (SELECT DD.TABLESPACE_NAME, ROUND(SUM(DD.BYTES) / (1024 * 1024), 2) TOT_GROOTTE_MB FROM SYS.DBA_DATA_FILES DD GROUP BY DD.TABLESPACE_NAME) D WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME ORDER BY 1; –查询表空间的free space select tablespace_name, count(*) as extends, round(sum(bytes) / 1024 / 1024, 2) as MB, sum(blocks) as blocks from dba_free_space group by tablespace_name; –查询表空间的总容量 select tablespace_name, sum(bytes) / 1024 / 1024 as MB from dba_data_files group by tablespace_name; –查询表空间使用率 select total.tablespace_name, round(total.MB, 2) as Total_MB,考试大论坛 round(total.MB - free.MB, 2) as Used_MB, round((1 - free.MB / total.MB) * 100, 2) || ‘%’ as Used_Pct from (select tablespace_name, sum(bytes) / 1024 / 1024 as MB from dba_free_space group by tablespace_name) free, (select tablespace_name, sum(bytes) / 1024 / 1024 as MB from dba_data_files group by tablespace_name) total where free.tablespace_name = total.tablespace_name;
