AW: SQL -not returning records with null values

Don't check for SQLCODE = 0 because there are situations where a warning
positive SQLCODE is returned.
With a warning the record is nevertheless returned. If you only consider
SQLCODE = 0 you may lose several rows.

Always check for
SQLCODE < *Zeros --> Error
SQLCODE = 100 --> Last Record

Mit freundlichen Grüßen / Best regards

Birgitta Hauser

"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not training them
and keeping them!"

-----Ursprüngliche Nachricht-----
Von: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxx] Im Auftrag von Gerald
Magnuson
Gesendet: Friday, 27.2 2015 20:08
An: RPG programming on the IBM i (AS/400 and iSeries)
Betreff: Re: SQL -not returning records with null values

yes, sorry...
I should have said we first do a coalesce null to blank or zero, then tested
if sqlcod = 0...



On Fri, Feb 27, 2015 at 11:19 AM, Scott Mildenberger <
SMildenberger@xxxxxxxxxxxxxxxxxx> wrote:

That doesn't make sense as 0 <> 100 is true. Changing the if to
sqlcod =
0 should give fewer records not more if anything.

Scott


-----Original Message-----
From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of
Gerald Magnuson
Sent: Friday, February 27, 2015 9:56 AM
To: rpg400-L@xxxxxxxxxxxx
Subject: SQL -not returning records with null values

we have been coding our loops as follows:

dow sqlcod <> 100

....fetch records
if sqlcod<> 100
... write subfile, or write report line



evidently, the records with nulls return the 100?

we knew we should have had more records on the display, but when we
changed the if to "sqlcod = 0"
we received the records with null fields.

is this the proper fix, or is something else going on?
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