oracle“記錄被另一個使用者鎖住”

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1、查看資料庫鎖,診斷鎖的來源及類型： 
select object_id,session_id,locked_mode from v$locked_object; 
或者用以下命令： 
select b.owner,b.object_name,l.session_id,l.locked_mode 
from v$locked_object l, dba_objects b 
where b.object_id=l.object_id 

SELECT lpad(‘ ‘,decode(l.xidusn ,0,3,0))||l.oracle_username User_name, 
o.owner,o.object_name,o.object_type,s.sid,s.serial# 
FROM v$locked_object l,dba_objects o,v$session s 
WHERE l.object_id=o.object_id 
AND l.session_id=s.sid 
ORDER BY o.object_id,xidusn DESC 

2、找出資料庫的serial#,以備殺死： 
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; 

3、殺死該session 
alter system kill session ‘sid,serial#‘ 
用步驟2中查出來的記錄，對應進該語句刪除

 

引自：http://www.cnblogs.com/huli-DBA/archive/2011/11/21/2257451.html