ORACLE用戶表空間使用情況查詢

1.查詢用戶使用的表空間：

select username,default_tablespace,temporary_tablespace
from dba_users
where username = '用戶名稱';

2.查詢表空間使用情況：

SELECT a.tablespace_name TABLESPACE_NAME,
       total / 1048576 TOTAL_M,
       free / 1048576 FREE_M,
       (total - free) / 1048576 USED_M,
       ROUND((total - free) / total, 4) * 100 "USED%",
       autoextensible autoextem
  FROM (SELECT tablespace_name, SUM(bytes) free
          FROM DBA_FREE_SPACE
         GROUP BY tablespace_name) a,
       (SELECT tablespace_name,
               SUM(bytes) total,
               max(autoextensible) autoextensible
          FROM DBA_DATA_FILES
         GROUP BY tablespace_name) b
 WHERE a.tablespace_name = b.tablespace_name
 order by 6, 5 desc

3.查看表空間對應的數據文件

select tablespace_name, file_id, file_name,
round(bytes/(1024*1024),0) total_space
from dba_data_files
order by tablespace_name;

 

2018-08-1613:25:52