--得到当前用户的session id
SELECT SID FROM V$MYSTAT WHERE ROWNUM =1;
--cps206改成你想要的global_name 然后重启数据库
ALTER DATABASE RENAME GLOBAL_NAME TO cps206 ;
-- 查看表空间已使用情况
select a.tablespace_name,
round(a.bytes / 1024 / 1024) "Sum MB",
round((a.bytes - b.bytes) / 1024 / 1024) "used MB",
round(b.bytes / 1024 / 1024) "free MB",
round(((a.bytes - b.bytes) / a.bytes), 2) "percent_used"
from (select tablespace_name, sum(bytes) bytes
from dba_data_files
group by tablespace_name) a,
(select tablespace_name, sum(bytes) bytes, max(bytes) largest
from dba_free_space
group by tablespace_name) b
where a.tablespace_name = b.tablespace_name
order by ((a.bytes - b.bytes) / a.bytes) desc;
SELECT SID FROM V$MYSTAT WHERE ROWNUM =1;
--cps206改成你想要的global_name 然后重启数据库
ALTER DATABASE RENAME GLOBAL_NAME TO cps206 ;
-- 查看表空间已使用情况
select a.tablespace_name,
round(a.bytes / 1024 / 1024) "Sum MB",
round((a.bytes - b.bytes) / 1024 / 1024) "used MB",
round(b.bytes / 1024 / 1024) "free MB",
round(((a.bytes - b.bytes) / a.bytes), 2) "percent_used"
from (select tablespace_name, sum(bytes) bytes
from dba_data_files
group by tablespace_name) a,
(select tablespace_name, sum(bytes) bytes, max(bytes) largest
from dba_free_space
group by tablespace_name) b
where a.tablespace_name = b.tablespace_name
order by ((a.bytes - b.bytes) / a.bytes) desc;