查看用户下面每张表占用的磁盘空间
SELECT T.OWNER,
T.SEGMENT_NAME,
T.SEGMENT_TYPE,
T.TABLESPACE_NAME,
T.BYTES,
T.BYTES/1024 BYTE_KB,
T.BYTES/1024/1024 BYTE_MB
FROM DBA_SEGMENTS T
WHERE --T.OWNER = ‘SYSDBA’ AND – 用户/模式名
T.SEGMENT_TYPE IN (‘TABLE’,‘INDEX’)
ORDER BY T.BYTES DESC;