查锁住的表，以及kill进程

--找出所有被锁的对象，定位出哪个回话占用

select l.session_id,o.owner,o.object_name
from v$locked_object l,dba_objects o
where l.object_id=o.object_id;

--所有导致锁的session

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;

--kill 所有占用资源的会话

alter system kill session ‘sid,serial#‘;