查看数据库表是否被锁住了:
问题描述:
数据库表不能删除数据,一删除数据就会卡住
原因分析:
这可能就是数据库表被锁住了
解决方案:
(1)查看是否有标被锁住:
select count(*) 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 a.OS_USER_NAME, c.owner, c.object_name, b.sid, b.serial#,
logon_time from v l o c k e d o b j e c t a , v locked_object a, v lockedobjecta,vsession b, dba_objects c where
a.session_id = b.sid and a.object_id = c.object_id order by
b.logon_time;
(4)杀掉对应进程
执行命令:
alter system kill session ‘1025,41’;
需要用户有权限操作,其中1025为sid,41为serial
(5)重新执行删除即可
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