oracle查询用户被占用

查询用户被占用：

SELECT DISTINCT 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;

杀死用户被占用

alter system kill session 'sid,serial#';