删除Oracle锁

问题：更新或删除某条记录的时候，无法操作，或被锁解决

1：查看记录是否被锁
SELECT a.object_id, a.session_id, b.object_name
FROM v$locked_object a, dba_objects b
WHERE a.object_id = b.object_id
2：查看被锁记录ID
select object_name,machine,s.sid,s.serial#
from v$locked_object l,dba_objects o ,v$session s
where l.object_id　=　o.object_id and l.session_id=s.sid
 
3：删除或解锁该记录
alter system kill session 'sid,serial#'(例如：alter system kill session '1,1212')