查看表空间使用情况

select

a.TABLESPACE_NAME,

a.curr_mb,

b.free_mb,

a.MAX_MB,

round((b.free_mb/a.curr_mb)*100,3)||'%' "free_pct"

from

(select tablespace_name,sum(bytes/1048576) curr_MB,sum(MAXBYTES/1048576) MAX_MB from dba_data_files group by TABLESPACE_NAME) a,

(select TABLESPACE_NAME,sum(bytes/1048576) free_mb from dba_free_space group by TABLESPACE_NAME) b

where a.TABLESPACE_NAME=b.TABLESPACE_NAME