-------------查询JOB-----------------

select job, what, next_date, next_sec, sysdate, failures, broken,interval

  from user_jobs a;

-------------添加JOB-----------------

variable n number;

begin

  dbms_job.submit(:n, 'MY_JOP;', sysdate,'sysdate+2/(24*60*60)');

  commit;

end;

-------------修改JOB-----------------

begin

  dbms_job.change(62 ,'MY_JOP;', sysdate,'sysdate+2/(24*60)' );

  commit;

end;

begin

  dbms_job.change(62 ,'MY_JOP;', to_date('2011-08-01 22:00:00', 'yyyy-mm-dd hh24:mi:ss'),'sysdate+1');

  commit;

end;

-------------删除JOB-----------------

begin

 dbms_job.remove(41);

end;