oracle 锁表后，如何定位，并解锁

查询锁表信息  ： 

SELECT object_name, machine, s.sid, s.serial# FROM gv$locked_object l, dba_objects o, gv$session s WHERE l.object_id　= o.object_id AND l.session_id = s.sid; 

解锁 ：

-- 释放SESSION SQL: -- alter system kill session 'sid, serial#'; ALTER system kill session '23, 1647';