Oracle10g SCHEDULE job

BEGIN
  SYS.DBMS_SCHEDULER.CREATE_JOB
    (
       job_name        => 'SCH_JOB_AP030'
      ,start_date      => TO_TIMESTAMP_TZ('2009/03/31 15:45:00.000000 +08:00','yyyy/mm/dd hh24:mi:ss.ff tzh:tzm')
      ,[color=#FF0000]repeat_interval => 'FREQ=WEEKLY; BYDAY=MON,TUE,WED,THU,FRI;BYHOUR=9,10,11,13,14,15,16,17;
BYMINUTE=15,45;BYSECOND=0'[/color]
      ,end_date        => NULL
      ,job_class       => 'DEFAULT_JOB_CLASS'
      ,job_type        => 'PLSQL_BLOCK'
      ,job_action      => 'BEGIN
   SP_MAKE_AP030
  ( );
   END;'
      ,comments        => '上班时间每半时更新次AP030'
    );
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
    ( name      => 'SCH_JOB_AP030'
     ,attribute => 'RESTARTABLE'
     ,value     => FALSE);
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
    ( name      => 'SCH_JOB_AP030'
     ,attribute => 'LOGGING_LEVEL'
     ,value     => SYS.DBMS_SCHEDULER.LOGGING_RUNS);
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE_NULL
    ( name      => 'SCH_JOB_AP030'
     ,attribute => 'MAX_FAILURES');
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE_NULL
    ( name      => 'SCH_JOB_AP030'
     ,attribute => 'MAX_RUNS');
  BEGIN
    SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
      ( name      => 'SCH_JOB_AP030'
       ,attribute => 'STOP_ON_WINDOW_CLOSE'
       ,value     => FALSE);
  EXCEPTION
    -- could fail if program is of type EXECUTABLE...
    WHEN OTHERS THEN
      NULL;
  END;
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
    ( name      => 'SCH_JOB_AP030'
     ,attribute => 'JOB_PRIORITY'
     ,value     => 3);
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE_NULL
    ( name      => 'SCH_JOB_AP030'
     ,attribute => 'SCHEDULE_LIMIT');
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
    ( name      => 'SCH_JOB_AP030'
     ,attribute => 'AUTO_DROP'
     ,value     => FALSE);

  SYS.DBMS_SCHEDULER.ENABLE
    (name                  => 'SCH_JOB_AP030');
END;
/