Oracle查看表空间使用率

SELECT DBF.TABLESPACE_NAME,

DBF.TOTALSPACE "总量(M)",

DBF.TOTALBLOCKS AS 总块数,

DBF.TOTALSPACE-DFS.FREESPACE "使用量(M)",

DBF.TOTALBLOCKS-DFS.FREEBLOCKS AS 使用块数,

DFS.FREESPACE "剩余总量(M)",

DFS.FREEBLOCKS "剩余块数",

(DFS.FREESPACE / DBF.TOTALSPACE) * 100 "空闲比例"

FROM (SELECT T.TABLESPACE_NAME,

SUM(T.BYTES) / 1024 / 1024 TOTALSPACE,

SUM(T.BLOCKS) TOTALBLOCKS

FROM DBA_DATA_FILES T

GROUP BY T.TABLESPACE_NAME) DBF,

(SELECT TT.TABLESPACE_NAME,

SUM(TT.BYTES) / 1024 / 1024 FREESPACE,

SUM(TT.BLOCKS) FREEBLOCKS

FROM DBA_FREE_SPACE TT

GROUP BY TT.TABLESPACE_NAME) DFS

WHERE TRIM(DBF.TABLESPACE_NAME) = TRIM(DFS.TABLESPACE_NAME);

SELECT A.TABLESPACE_NAME,

A.BYTES/ 1024 / 1024 TOTAL,

B.BYTES/ 1024 / 1024 USED,

C.BYTES/ 1024 / 1024 FREE,

(B.BYTES * 100) / A.BYTES "% USED ",

(C.BYTES * 100) / A.BYTES "% FREE "

FROM SYS.SM$TS_AVAIL A, SYS.SM$TS_USED B, SYS.SM$TS_FREE C

WHERE A.TABLESPACE_NAME = B.TABLESPACE_NAME

AND A.TABLESPACE_NAME = C.TABLESPACE_NAME;

SELECT Total.name "Tablespace Name",

Free_space,

(total_space - Free_space) Used_space,

total_space

FROM (select tablespace_name, sum(bytes / 1024 / 1024) Free_Space

from sys.dba_free_space

group by tablespace_name) Free,