1.查看表空间：

SELECT total.tablespace_name,

Round(total.MB, 2) AS Total_MB,

Round(total.MB - free.MB, 2) AS Used_MB,

Round(( 1 - free.MB / total.MB ) * 100, 2)

|| ‘%‘ AS Used_Pct

FROM (SELECT tablespace_name,

Sum(bytes) / 1024 / 1024 AS MB

FROM dba_free_space

GROUP BY tablespace_name) free,

(SELECT tablespace_name,

Sum(bytes) / 1024 / 1024 AS MB

FROM dba_data_files

GROUP BY tablespace_name) total

WHERE free.tablespace_name = total.tablespace_name;

2.后续不断更新中。。。。。。。。。。。。。。。