Scheduler parameters

Question

Hi
Can we generate the scheduler parameters from SQL query? We need to call a script that takes arguments provided by Scheduler but every time we run the job we need to generate different parameters. Can we do that?
Thanks

Answer 1

If your job is running in the database instance (ie it is not an external job) you can try to create a table containing the parameters and modify the job code to search for the right parameters in this table. See following example (for DBMS_JOB but should possible to adapt it for DBMS_SCHEDULER):
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:351033761220
There is another possibilty with DMBS_SCHEDULER.SET_JOB_ARGUMENT_VALUE that I've tested with Oracle XE (10.2.0.1).
SQL>
SQL> create table jp(
  2  jn varchar2(30),
  3  p varchar2(10));
Table created.
SQL> insert into jp values ('J1', '1');
1 row created.
SQL> insert into jp values ('J2', '2');
1 row created.
SQL> insert into jp values ('J3', '3');
1 row created.
SQL> insert into jp values ('J4', '4');
1 row created.
SQL> insert into jp values ('J5', '2');
1 row created.
SQL> insert into jp values ('J0', '0');
1 row created.
SQL>
SQL> create table jr(
  2  t varchar2(100));
Table created.
SQL>
SQL> create procedure proc (p1 varchar2)
  2  is
  3  l_p varchar2(10);
  4  begin
  5  select p into l_p from jp where jn = p1;
  6  insert into jr values(to_char(sysdate,'HH24:MI:SS') || ' ' || p1 || ' ' ||
l_p);
  7  commit;
  8  end;
  9  /
Procedure created.
SQL> show errors
No errors.
SQL>
SQL> --
SQL> -- enabled must be set to false otherwise ORA-27457
SQL> --
SQL>
SQL> begin
  2  dbms_scheduler.create_job (
  3   job_name            => 'jtest',
  4   job_type            => 'stored_procedure',
  5   job_action          => 'proc',
  6   number_of_arguments => 1,
  7   start_date          => systimestamp,
  8   repeat_interval     => 'freq=minutely;bysecond=0,10,20,30,40,50',
  9   end_date            => null,
10   enabled             => false);
11  end;
12  /
PL/SQL procedure successfully completed.
SQL> show errors
No errors.
SQL>
SQL> begin
  2  dbms_scheduler.set_job_argument_value (
  3   job_name => 'jtest',
  4   argument_position => 1,
  5   argument_value => 'J0');
  6  end;
  7  /
PL/SQL procedure successfully completed.
SQL> show errors
No errors.
SQL>
SQL> begin
  2  dbms_scheduler.enable('jtest');
  3  end;
  4  /
PL/SQL procedure successfully completed.
SQL>
SQL> begin
  2  dbms_lock.sleep(10);
  3  end;
  4  /
PL/SQL procedure successfully completed.
SQL>
SQL> begin
  2  dbms_scheduler.set_job_argument_value (
  3   job_name => 'jtest',
  4   argument_position => 1,
  5   argument_value => 'J1');
  6  end;
  7  /
PL/SQL procedure successfully completed.
SQL> show errors
No errors.
SQL>
SQL> begin
  2  dbms_lock.sleep(10);
  3  end;
  4  /
PL/SQL procedure successfully completed.
SQL>
SQL> select * from jr;
T
13:55:10 J0 0
13:55:20 J1 1
SQL>Edited by: P. Forstmann on 22 mai 2010 13:56