查看表空间使用率的一个SQL

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SELECT D.TABLESPACE_NAME,

SPACE||'M' "SUM_SPACE(M)",

BLOCKS "SUM_BLOCKS",

SPACE - NVL (FREE_SPACE, 0)||'M' "USED_SPACE(M)",

ROUND( (1 - NVL (FREE_SPACE, 0) / SPACE) * 100, 2)||'%' "USED_RATE(%)",

FREE_SPACE||'M' "FREE_SPACE(M)"

FROM ( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES) / (1024 * 1024), 2) SPACE,

SUM (BLOCKS) BLOCKS

FROM DBA_DATA_FILES

GROUP BY TABLESPACE_NAME) D,

( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES) / (1024 * 1024), 2) FREE_SPACE

FROM DBA_FREE_SPACE

GROUP BY TABLESPACE_NAME) F

WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+)

UNION ALL --如果有临时表空间

SELECT D.TABLESPACE_NAME,

SPACE||'M' "SUM_SPACE(M)",

BLOCKS SUM_BLOCKS,

USED_SPACE||'M' "USED_SPACE(M)",

ROUND (NVL (USED_SPACE, 0) / SPACE * 100, 2)||'%' "USED_RATE(%)",

NVL (FREE_SPACE, 0)||'M' "FREE_SPACE(M)"

FROM ( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES) / (1024 * 1024), 2) SPACE,

SUM (BLOCKS) BLOCKS

FROM DBA_TEMP_FILES

GROUP BY TABLESPACE_NAME) D,

( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES_USED) / (1024 * 1024), 2) USED_SPACE,

ROUND (SUM (BYTES_FREE) / (1024 * 1024), 2) FREE_SPACE

FROM V$TEMP_SPACE_HEADER

GROUP BY TABLESPACE_NAME) F

WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+)

ORDER BY 1;