Oracle查看锁表的SQL方法

有些小伙伴对Oracle查看锁表的SQL方法还不是很了解，下面小编就来告诉大家：

1.查看是否有锁表的sql

代码如下:

select 'blocker('||lb.sid||':'||sb.username||')-sql:'|| qb.sql_text blockers,
'waiter ('||lw.sid||':'||sw.username||')-sql:'|| qw.sql_text waiters
from v$lock lb,
v$lock lw,
v$session sb,
v$session sw,
v$sql qb,
v$sql qw
where lb.sid=sb.sid
and lw.sid=sw.sid
and sb.prev_sql_addr=qb.address
and sw.sql_address=qw.address
and lb.id1=lw.id1
and sw.lockwait is not null
and sb.lockwait is null
and lb.block=1 ;

2.查看被锁的表

代码如下:

select p.spid,a.serial#,c.object_name,b.session_id,b.oracle_username,b.os_user_name
from v$process p,v$session a, v$locked_object b,all_objects c
where p.addr=a.paddr and a.process=b.process and c.object_id=b.object_id ;

3.查看那个用户那个进程造成死锁，锁的级别

代码如下:

select b.owner,b.object_name,l.session_id,l.locked_mode fromv$locked_object l, dba_objects

4.查看连接的进程

代码如下:

SELECT sid, serial#, username, osuser FROMv$session;

5.查看是哪个session引起的

代码如下:

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;

6.杀掉进程

代码如下:

alter system kill session 'sid,serial#';

通过上述相信大家对Oracle查看锁表的SQL方法已经有所了解，希望对大家能够有所帮助。