ORACLE 经验

--ORACLE 查占用空间大的表

select owner,segment_name,sum(bytes)/1024/1024 Mbytese FROM dba_segments where segment_type='TABLE'
--and owner in ('XSEXAM','ELEARNING','ZTETRAIN','EVALCENTER','EMPTRAIN','EUNIV')
 group by owner,segment_name
 ORDER BY  Mbytese DESC;

 

--查锁住的进程

select t2.username,t2.sid,t2.serial#,t2.logon_time
from v$locked_object t1,v$session t2
where t1.session_id=t2.sid order by t2.logon_time;