oracle查询死锁，解除死锁

查询死锁
select object_name,machine,s.sid,s.serial#
from v$locked_object l,dba_objects o ,v$lockedo​bjectl,dbao​bjectso,vsession s
where l.object_id　=　o.object_id and l.session_id=s.sid;

解除死锁
alter system kill session ‘SID,SERIAL#’;