Please help me to run a submitted job in database

Question

Hi, Guys:
I need your help for a problem:
I need to have a job runnning every day midnight to update a column in a table, so I wrote a procedure to do it, submit job as follows:
set serveroutput on;
declare
  n_jobno BINARY_INTEGER;
begin
  dbms_job.submit(job=>n_jobno,  what=>'begin SOR_CHECKSUM_SERVICE.porpulate_Checksum; end;',next_date=>trunc(sysdate)+15/24+6/288,interval=>'trunc(sysdate+1/288,''MI'')');
  commit;
  dbms_output.put_line('Job Number:'||n_jobno);
end;But the job is never running. I checked dba_jobs
select job, last_date,last_sec, log_user, next_date, next_sec,schema_user, total_time, what,instance from dba_jobs;it shows the following result:
4001     27-AUG-12     11:36:51     SYS     27-AUG-12     19:36:51     APEX_030200     10.00000000000000000000000000000000000002     wwv_flow_cache.purge_sessions(p_purge_sess_older_then_hrs => 24);
4002     27-AUG-12     15:31:42     SYS     27-AUG-12     15:41:42     APEX_030200     468.999999999999999999999999999999999997     wwv_flow_mail.push_queue(wwv_flow_platform.get_preference('SMTP_HOST_ADDRESS'),wwv_flow_platform.get_preference('SMTP_HOST_PORT'));
69               SORS     27-AUG-12     15:30:00     SORS     313     begin SOR_CHECKSUM_SERVICE.porpulate_Checksum; end;the the dba_jobs shows with instance number as 0,
however, when I run the
select *
from v$instance;1     apexsb     lsgapps.thruhere.net     11.2.0.1.0     01-AUG-12     OPEN     NO     1
instance number shows 1.
Is thsi because I submit my job to a wrong database instance? or any other reason?
Thanks a lot for your time.
Sam

Answer 1

the the dba_jobs shows with instance number as 0,Where? Not in your example....
(How do you do that, by the way? Posting unformatted code with {noformat}{noformat} tags?)
Check alert.log and trace files in your udump directory for additional clues.