oracle 怎么查看数据被锁
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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
from
v$locked_object
a,dba_objects
b
where
b.object_id
=
a.object_id;
(3)查看是哪个session引起的
select
b.username,b.sid,b.serial#,logon_time
from
v$locked_object
a,v$session
b
where
a.session_id
=
b.sid
order
by
b.logon_time;
(4)杀掉对应进程
执行命令:alter
system
kill
session'1025,41';
其中1025为sid,41为serial#.
(1)锁表查询的代码有以下的形式:
select
count(*)
from
v$locked_object;
select
*
from
v$locked_object;
(2)查看哪个表被锁
select
b.owner,b.object_name,a.session_id,a.locked_mode
from
v$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
from
v$locked_object
a,v$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#.
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