Re: Scheduling a PL/SQL Program?

From: Thomas Kyte <tkyte_at_us.oracle.com>
Date: Tue, 12 May 1998 11:30:59 GMT
Message-ID: <355d31c1.10231742@192.86.155.100>

A copy of this was sent to mark_tortolano_at_youre.welcome.com (Mark Tortolano) (if that email address didn't require changing) On Tue, 12 May 1998 10:13:03 GMT, you wrote:

>
>I have a PL/SQL block that I need to execute after midnight every
>night to update the content of a table. Should I embed this as a
>subprogram directly into the database (I currently run it from
>SQL*Plus, but have problems getting it to run as a cron job)? If I do
>that, how do I trigger it at a given time each day?
>
>Thanks,
>
>Mark Tortolano

Use dbms_jobs.

Make sure you set the init.ora parameters:

job_queue_interval= 60
job_queue_processes = 1

the first one checks how often the queue is checked (every 60 seconds with the above) and how many queues there are defined (how many submitted blocks can execute concurrently -- 1 in the above).

Then, you can use dbms_job.submit to submit and schedule the job. For example, to get something to run everyday at midnight you would:

declare

    l_job number;
begin

    dbms_job.submit( job => l_job,

                     what => 'YOUR_CODE_HERE;', 
                     next_date => trunc(sysdate)+1,
                     interval => 'trunc(sysdate)+1' );

    commit;
end;
/

That will schedule your job to initially run at midnight today and then every subsequent midnight.  

Thomas Kyte
tkyte_at_us.oracle.com
Oracle Government
Herndon VA  

http://govt.us.oracle.com/ -- downloadable utilities  

---

Opinions are mine and do not necessarily reflect those of Oracle Corporation  

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