--1，查看锁

Select * From v$locked_object;

--or

Select object_id,session_id,locked_mode From v$locked_object;

--or

Select b.owner,b.object_name,l.session_id,l.locked_mode

From v$locked_object l, dba_objects b

Where b.object_id=l.object_id

 

--2，找出sid,serial#号

Select t2.username,t2.sid,t2.serial#,t2.logon_time

From v$locked_object t1,v$session t2

Where t1.session_id=t2.sid Order by t2.logon_time;

 

--以上两步可以直接用以下语句查出被锁记录的表名，SID，Serial#，用户名，机器名等信息。

select s.username, o.owner,o.object_name,o.object_type,

decode(l.type,'TM','TABLE LOCK', 'TX','ROW LOCK',NULL) LOCK_LEVEL,

s.sid,s.serial#,s.terminal,s.machine,s.program,s.osuser

from v$session s,v$lock l,dba_objects o

where s.sid=l.sid

and o.object_id=l.id1

and s.username is not null

 

--3，解锁：杀死被锁的session(用上面查出的SID，Serial#)

Alter system Kill session 'sid,serial#'

--or

Alter system disconnect session 'sid, serial#' immediate;