oracle锁表操作

来源：互联网发布：原油api数据公布网站编辑：程序博客网时间：2024/06/10 14:09

selectb.username,b.sid,b.serial#,logon_time from v$locked_object a,v$session b wherea.session_id = b.sid order by b.logon_time;

altersystem kill session '897,9082';

Oracle数据库操作中，我们有时会用到锁表查询以及解锁和kill进程等操作，那么这些操作是怎么实现的呢？本文我们主要就介绍一下这部分内容。

(1)锁表查询的代码有以下的形式：

select count(*) from v$locked_object;

select * from v$locked_object;

(2)查看哪个表被锁

select b.owner,b.object_name,a.session_id,a.locked_mode fromv$locked_object a,dba_objects b where b.object_id = a.object_id;

(3)查看是哪个session引起的

select b.username,b.sid,b.serial#,logon_time fromv$locked_object a,v$session b where a.session_id = b.sid order by b.logon_time;

(4)杀掉对应进程

执行命令：alter system kill session'1025,41';

其中1025为sid,41为serial#.

---------下同

selectsession_id from v$locked_object;

SELECTsid, serial#, username, osuser FROM v$session where sid = 973;

ALTERSYSTEM KILL SESSION '973,31553';

阅读全文

0 0