Oracle常用SQL汇总（持续更新）
SELECT UPPER(F.TABLESPACE_NAME) AS TABLESPACE_NAME, --表空间名称D.TOTAL_BYTESAS TOTAL_BYTES, --表空间大小M
F.FREE_BYTES AS FREE_BYTES, --空闲大小M
D.TOTAL_BYTES - F.FREE_BYTES AS USEAGE_BYTES, --使用大小M
TO_CHAR(ROUND((D.TOTAL_BYTES - F.FREE_BYTES) / D.TOTAL_BYTES * 100, 2), '990.99')
AS USEAGE_PERCENT, --使用占比
F.MAX_BYTESAS BLOCK_MAX_BYTES --最大BLOCK块
FROM (SELECT TABLESPACE_NAME,
ROUND(SUM(BYTES) / (1024 * 1024), 2) FREE_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) TOTAL_BYTES
FROM SYS.DBA_DATA_FILES DD
GROUP BY DD.TABLESPACE_NAME) D
WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME
ORDER BY 4 DESC;
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