查看表空间使用情况

select

t1.tablespace_name Tablespace_name,
t1.Mbyte Size_Mbytes,

t2.Mbyte Used_Mbytes,

to_char((t1.Mbyte-t2.Mbyte)/t1.Mbyte*100,'09.99') Free_Percent

from (select tablespace_name tablespace_name,sum(b.bytes)/1024/1024 Mbyte from dba_data_files b group by b.tablespace_name) t1,

(select tablespace_name tablespace_name,sum(b.bytes)/1024/1024 Mbyte from dba_free_space b group by b.tablespace_name) t2
where t1.tablespace_name = t2.tablespace_name

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转载于:http://blog.itpub.net/11088128/viewspace-145412/