用户表空间查询
查询用户表空间对应关系
select username, default_tablespace
from dba_users;
查询表空间使用情况
select a.file_id "FileNo",a.tablespace_name
"Tablespace_name",
a.bytes "Bytes",a.bytes-sum(nvl(b.bytes,0)) "Used",
sum(nvl(b.bytes,0)) "Free",
sum(nvl(b.bytes,0))/a.bytes*100 "%free"
from dba_data_files a, dba_free_space b
where a.file_id=b.file_id(+)
group by a.tablespace_name ,
a.file_id,a.bytes order by a.tablespace_name;
转载
http://blog.csdn.net/guagua365/article/details/4138682