oracle 查询死锁

--查询死锁
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; 

select * from v$session t1, v$locked_object t2 where t1.sid = t2.SESSION_ID;
select * from tran_bond_detail;

--杀掉死锁
alter system kill session 'sid,serial';