查询锁表：
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; 

解锁该表：
alter system kill session ‘1182,60217‘   --对应填写sid,serial