1、根据sid查看具体的sql语句，如果sql不重要，可以kill
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; 
2、kill该事务
alter system kill session 'sid,serial#'