Oracle11g 查看表空间使用率

查询11g表空间使用率：

set  linesize 200  pagesize 999

col  tablespace_name for a30

col file_name  for  a65

select  name inst_name, b.tablespace_name ,

ROUND(b.total/1024/1024/1024 ,4) total_GB ,

ROUND(b.maxtotal/1024/1024/1024,4) maxtotal_GB,

ROUND(a.free/1024/1024/1024,4) free_GB,

ROUND((b.total-a.free)/1024/1024/1024 ,4) used_GB,

ROUND((b.total-a.free)/b.maxtotal,5)*100 Used_Pct

from  

( select  tablespace_name,SUM(bytes) free from  DBA_FREE_SPACE group by  tablespace_name  ) a,

(select  tablespace_name,SUM(bytes) total,sum( case maxbytes when 0 then  bytes  else maxbytes end)  maxtotal

from   dba_data_files group by  tablespace_name ) b , v$database

where b.tablespace_name=a.tablespace_name

and b.tablespace_name not like '%UNDO%'

order by  Used_Pct desc ;

查询表空间是否自动扩展：

select  file_name ,autoextensible ,increment_by  from  dba_data_files ;