Oracle查看被锁的表和解锁

 

以下几个为相关表

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'153,28830';