oracle 的表空间实例详解
查询表空间
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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 4 DESC ; |
添加一个表空间文件:
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ALTER TABLESPACE TESTTBS ADD DATAFILE 'D:/ora/datafile/users.ora' SIZE 500M AUTOEXTEND ON |
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原文链接:https://my.oschina.net/u/1540190/blog/787008