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Oracle中事务锁(锁住的表、锁住的会话)

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:
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#’  
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