select SESS.sid, SESS.SERIAL#, LO.ORACLE_USERNAME, LO.OS_USER_NAME,
AO.OBJECT_NAME, LO.LOCKED_MODE
from V$LOCKED_OBJECT LO, DBA_OBJECTs AO, V$SESSION SESS
where AO.OBJECT_ID = LO.OBJECT_ID
and lo.session_id = sess.sid;
alter system kill session ‘135,9720‘;
原文：http://www.cnblogs.com/sloveling/p/4719528.html