Oracle中事务锁（锁住的表、锁住的会话）

今天又学会一招，查看Oracle数据库中由于会话非正常退出而导致的事务锁：
cuug每周五晚8点都有免费网络课程，详情可点击cuug官网。

1.查看锁住的表


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;


2.查看被锁住的会话


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; 


3.如果要断开某个会话，执行


Alter system kill session ‘sid,serial#’