Run a job every 30min but only from 6am to 6pm

Question

I have a job that runs every 30 mins to process orders, and email failures. I only want this job to run from 6or 7am to 6pm M-F. I have other jobs that run once a day starting 1 minute past midnight. and and 4am. I do not want any conflicts as the both read the same tables. Using Enterprise Manager in 10g, I can only see how to schedule a job to repeat and start and stop but I want it to resbmit the schedule.
Is this possible or will I have to schedule a 25 jobs to run ever 24hrs?
thanks
bj

Answer 1

The job that runs every 30 minutes processes orders and changes the status, the midnight job runs the same stored procedure and then does a data reconciliation at the start before running accounting. The conflict could be data conflict. If both job start after midnight, the order job uses the order end date which would be the day before and an order that should be included in the nightly accounting run will not be. Although the system by default does not allow a user to enter an order end date outside of the 6AM to 6PM time range, we have had people use SQL*Plus to fix something and change the end date to 11:45PM thinking they entered 11:45AM.
I think I have found an answer to my problem. I will have a job run a PL/SQL block that if the time is right execute the procedure. So far my test of the script by using a shorter time frame is working.
my new job would look like this:
begin
If to_char(sysdate,'HH24:MI:SS') >= '06:00:00' and to_char(sysdate,'HH24:MI:SS') <= '18:00:00'then
proc_fb_process_ord();
end if;
end;
my test case is :
DECLARE
v_sender VARCHAR2 (100) := '[email protected]';
v_recipients VARCHAR2 (1000) := '[email protected]';
v_subject VARCHAR2 (250) := 'NG-DB01 TEST';
v_message VARCHAR2 (4000);
begin
case
when to_char(sysdate,'HH24:MI:SS') >= '12:00:00' and to_char(sysdate,'HH24:MI:SS') <= '12:30:00'then
v_message := to_char(sysdate,'HH24:MI:SS')||' Between Time';
when to_char(sysdate,'HH24:MI:SS') < '12:00:00' then
v_message := to_char(sysdate,'HH24:MI:SS')||' Before Time';
when to_char(sysdate,'HH24:MI:SS') > '12:30:00'then
v_message := to_char(sysdate,'HH24:MI:SS')||' After Time';
end case;
demo_mail.mail (v_sender, v_recipients, v_subject, v_message);
end;
/