Will all processes signal one named alert or a process specific alert? If it is one alert then keep counting as you receive, if they are individually named alerts, keep a local pl/sql table and mark as you receive them. When you have alerts, dbms_lock for the same purpose is like riding a bike while it is being towed.
Raj
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Rajendra dot Jamadagni at nospamespn dot com
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-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 15, 2003 1:44 PM
To: Multiple recipients of list ORACLE-L
Subject: using dbms_alert to manage multiple processes
I have a coordinator package that is going to run alot of long running batch processes through dbms_job. Could be as many as 300 of them. I know to set my job_queue_processes = 36.
however, I want to 'wait' until all of these are done. My concern is with concurrency.
here is pseudo code:
max number := 0;
counter number := 0;
loop
dbms_job.submit....
dbms_alert.register...
max := max + 1;
exit when finished submitted
for i in 1.. max LOOP
dbms_alert.waitany(... stuff...)
end loop;
my concern is in the split second while my coordinate is awake, that another dbms_alert could get issued and Ill never reach my max counter in the loop.
do I need to use dbms_lock to serialize this? Its not that big of a deal, Im just hoping that oracle serializes it for me.
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