第一步：查询处用户，被锁表名，sessionID
select b.owner,b.object_name,l.session_id,l.locked_mode
from v$locked_object l, dba_objects b
where b.object_id=l.object_id
第二部：查询处username,session_id,serial#等
select t2.username,t2.sid,t2.serial#,t2.logon_time
from v$locked_object t1,v$session t2
where t1.session_id=t2.sid order by t2.logon_time;
第三步：根据第一步中的表，查看session_id，到第二步中找到，sesseion_id和serial#，然后之下下面的语句，进行kill
alter system kill session '1442,24963' //其中 1442 代表sesseion_id 24963 代表serial#