oracle查询死锁

--查看有哪些表被锁住
select b.owner,b.object_name,a.session_id,a.locked_mode
from v$locked_object a,dba_objects b
where b.object_id = a.object_id;

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;

 

--杀进程中的会话

alter system kill session 'sid,serial#';
alter system kill session '254,28';