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Normal scheduler behavior?

GaffAug 20 2012 — edited Aug 20 2012
I created a schedule to run a job every two minutes.

BEGIN
  SYS.DBMS_SCHEDULER.DROP_JOB
    (job_name  => 'GAFF.DATEEVERY2MINS');
END;
/

BEGIN
  SYS.DBMS_SCHEDULER.CREATE_JOB
    (
       job_name        => 'GAFF.DATEEVERY2MINS'
      ,start_date      => NULL
      ,repeat_interval => 'FREQ=MINUTELY'
      ,end_date        => NULL
      ,job_class       => 'DEFAULT_JOB_CLASS'
      ,job_type        => 'PLSQL_BLOCK'
      ,job_action      => 'BEGIN insert into GAFF.scheduler_output values(systimestamp,''SOME TEXT '' || systimestamp); END;'
      ,comments        => 'write date to TABLE every 2 mins'
    );
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
    ( name      => 'GAFF.DATEEVERY2MINS'
     ,attribute => 'RESTARTABLE'
     ,value     => TRUE);
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
    ( name      => 'GAFF.DATEEVERY2MINS'
     ,attribute => 'LOGGING_LEVEL'
     ,value     => SYS.DBMS_SCHEDULER.LOGGING_RUNS);
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE_NULL
    ( name      => 'GAFF.DATEEVERY2MINS'
     ,attribute => 'MAX_FAILURES');
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE_NULL
    ( name      => 'GAFF.DATEEVERY2MINS'
     ,attribute => 'MAX_RUNS');
  BEGIN
    SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
      ( name      => 'GAFF.DATEEVERY2MINS'
       ,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      => 'GAFF.DATEEVERY2MINS'
     ,attribute => 'JOB_PRIORITY'
     ,value     => 3);
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE_NULL
    ( name      => 'GAFF.DATEEVERY2MINS'
     ,attribute => 'SCHEDULE_LIMIT');
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
    ( name      => 'GAFF.DATEEVERY2MINS'
     ,attribute => 'AUTO_DROP'
     ,value     => FALSE);
  SYS.DBMS_SCHEDULER.SET_ATTRIBUTE
    ( name      => 'GAFF.DATEEVERY2MINS'
     ,attribute => 'RAISE_EVENTS'
     ,value     => SYS.DBMS_SCHEDULER.JOB_STARTED + SYS.DBMS_SCHEDULER.JOB_SUCCEEDED + SYS.DBMS_SCHEDULER.JOB_FAILED + SYS.DBMS_SCHEDULER.JOB_COMPLETED);
END;
/
When I look at the source for the created objects in Toad I see that it created the following limit on the schedule itself.
BEGIN
  SYS.DBMS_SCHEDULER.CREATE_SCHEDULE
    (
      schedule_name    => 'GAFF.EVERY2MINS'
     ,start_date       => TO_TIMESTAMP_TZ('2012/09/11 12:36:15.000000 America/New_York','yyyy/mm/dd hh24:mi:ss.ff tzr')
     ,repeat_interval  => 'FREQ=MINUTELY;INTERVAL=2;'
     ,end_date         => TO_TIMESTAMP_TZ('2012/09/19 00:00:00.000000 America/New_York','yyyy/mm/dd hh24:mi:ss.ff tzr')
     ,comments         => 'Run these jobs every two minutes'
    );
END;
/
I take that to mean that the schedule is not valid after 9/19. The job that I started three days ago was still running when I came in this morning though. So what I'd like to know is:
1) What does the 9/19 date mean? No NEW jobs will be able to use the schedule after that date?
2) How did that limit get in there in the first place from the attributes I set in my code?

Version Info:

Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production

---

Nevermind 2). It got there from the schedule create code (which I forgot to post but post here);
BEGIN
  SYS.DBMS_SCHEDULER.DROP_SCHEDULE
    (schedule_name  => 'GAFF.EVERY2MINS');
END;
/

BEGIN
  SYS.DBMS_SCHEDULER.CREATE_SCHEDULE
    (
      schedule_name    => 'GAFF.EVERY2MINS'
     ,start_date       => TO_TIMESTAMP_TZ('2012/09/11 12:36:15.000000 America/New_York','yyyy/mm/dd hh24:mi:ss.ff tzr')
     ,repeat_interval  => 'FREQ=MINUTELY;INTERVAL=2;'
     ,end_date         => TO_TIMESTAMP_TZ('2012/09/21 00:00:00.000000 America/New_York','yyyy/mm/dd hh24:mi:ss.ff tzr')
     ,comments         => 'Run these jobs every two minutes'
    );
END;
/
Edited by: Gaff on Aug 20, 2012 12:40 PM
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Locked on Sep 17 2012
Added on Aug 20 2012
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