2021-07-12 oracle查看死锁

-- 查询死锁
select b.username,b.sid,b.serial#,logon_time
from v$locked_object a,v$session b
where a.session_id = b.sid order by b.logon_time;

-- kill死锁进程，假设进程号为1493，4487
alter system kill session '1493,4887';