oracle查看表空间使用情况
SELECT tablespace_name,sum_m as total_m, ( sum_m- free_m) as used_m,free_m,
to_char(100*(sum_m-free_m)/sum_m, '99.99') || '%' AS pct_used,
to_char(100*free_m/sum_m, '99.99') || '%' AS pct_free
FROM
( SELECT tablespace_name,sum(bytes)/1024/1024 AS sum_m
FROM dba_data_files GROUP BY tablespace_name),
( SELECT tablespace_name AS fs_ts_name,sum(bytes/1024/1024) AS free_m
FROM dba_free_space GROUP BY tablespace_name )
WHERE tablespace_name = fs_ts_name
order by free_m;
to_char(100*(sum_m-free_m)/sum_m, '99.99') || '%' AS pct_used,
to_char(100*free_m/sum_m, '99.99') || '%' AS pct_free
FROM
( SELECT tablespace_name,sum(bytes)/1024/1024 AS sum_m
FROM dba_data_files GROUP BY tablespace_name),
( SELECT tablespace_name AS fs_ts_name,sum(bytes/1024/1024) AS free_m
FROM dba_free_space GROUP BY tablespace_name )
WHERE tablespace_name = fs_ts_name
order by free_m;
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