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Time to call service program is in the millionth of seconds. Could be
opening the table. I would run it through the visual explain and see what it
is doing.

On Thu, May 26, 2011 at 12:35 PM, Jeff Crosby <jlcrosby@xxxxxxxxxxxxxxxx>wrote:

All,

I have a procedure in a service program to retrieve a single record
field (an email address) from a file. The relevant statement in the
RPG is:

Exec SQL
Select CEMLADS
Into :EmlAds
From CUSEMLAD
Where CCUSNR = :PxCust and CEMLPPS = :PxEmlPurpose;

I then return :EmlAds to the calling program.

To do this for about 2000 records takes upwards of a minute. If
instead I define the file in the calling program and retrieve it via a
simple chain, these 2000 records are handled in 2-3 seconds. Why the
big discrepancy? If I run it in debug mode, it is using the access
path that already exists. Is my SQL statement flaky? Or is it the
overhead of calling the service program? Combination?

If it makes a difference, about 80% of the time no record will be found.

Thanks.

--
Jeff Crosby
VP Information Systems
UniPro FoodService/Dilgard
P.O. Box 13369
Ft. Wayne, IN 46868-3369
260-422-7531
www.dilgardfoods.com

The opinions expressed are my own and not necessarily the opinion of
my company. Unless I say so.
--
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