ORACLE用户表空间使用情况查询

1.查询用户使用的表空间：

 select username,default_tablespace,temporary_tablespace
 from dba_users
 where username = '用户名称';

2.查询表空间使用情况：

 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.查看表空间对应的数据文件

 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