oracle锁表查看

关键是查询v$locked_object

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;

或者

select * from v$session t1, v$locked_object t2 where t1.sid = t2.SESSION_ID;

杀掉进程：
alter system kill session 'sid,serial#';