oracl查询锁表语句

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--查询锁表语句
select sess.sid,
    sess.serial#,
    lo.oracle_username,
    lo.os_user_name,
    ao.object_name, 
    lo.locked_mode
    from v$locked_object lo,
    dba_objects ao,
    v$session sess
where ao.object_id = lo.object_id and lo.session_id = sess.sid; 

--查询锁表进程sql
select * from v$session t1, v$locked_object t2 where t1.sid = t2.SESSION_ID; 

alter system kill session '274,2865';  ---sid/seria#