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oracle表锁
编辑时间:2019-01-31 15:34:36.0 作者:hcy 浏览量:28

相关表:

SELECT * FROM v$lock;
SELECT * FROM v$sqlarea;
SELECT * FROM v$session;
SELECT * FROM v$process ;
SELECT * FROM v$locked_object;
SELECT * FROM all_objects;
SELECT * FROM v$session_wait;

查看被锁的表 

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;

查看那个用户那个进程照成死锁

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;

查看连接的进程

SELECT sid, serial#, username, osuser FROM v$session;

查出锁定表的sid, serial#,os_user_name, machine_name, terminal,锁的type,mode

SELECT s.sid, s.serial#, s.username, s.schemaname, s.osuser, s.process, s.machine,
s.terminal, s.logon_time, l.type
FROM v$session s, v$lock l
WHERE s.sid = l.sid
AND s.username IS NOT NULL
ORDER BY sid;

这个语句将查找到数据库中所有的DML语句产生的锁,还可以发现,任何DML语句其实产生了两个锁,一个是表锁,一个是行锁。

杀掉进程 sid,serial#

alter system kill session'210,11562';

 

 

来说两句吧
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