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I've got nothing but good things to say about SEQUEL. I've been using it for
almost 20 years now.

I've even had situations where they've sent me enhancements that I needed
for various purposes, and then those are shipped as a version upgrade.

Paul Nelson
Office 512-392-2577
Cell 708-670-6978
nelsonp@xxxxxxxxxxxxx


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Dennis Lovelady
Sent: Wednesday, June 16, 2010 10:52 AM
To: 'Midrange Systems Technical Discussion'
Subject: RE: SQL row processing order for UDF

Well, looks like I'll be having crow for dinner. Yum yum. I've had it
before; I'll have it again. :)

SEQUEL, it turns out, has a "DATABASE NAME" attribute - settable at the user
level - that determines whether it uses the classic (nonstandard) syntax or
the DB2 syntax.

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
"Health nuts are going to feel stupid someday, lying in hospitals dying of
nothing."
-- Redd Foxx


I used to think CASE tools were oh so cool. Then RPG actually started
getting improvements. And the CASE tool vendors thought maintenance
money
was reserved for paying off leveraged buy outs instead of product
improvements and they lagged behind, further and further, until they
fell
into disuse.

Now I suppose SEQUEL is going that same route.


Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: "Dennis Lovelady" <iseries@xxxxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>
Date: 06/16/2010 05:10 AM
Subject: RE: SQL row processing order for UDF
Sent by: midrange-l-bounces@xxxxxxxxxxxx



Thanks to all who responded. Rob's idea seems to fit the bill best in
this
case.

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
"Our vision is to speed up time, eventually eliminating it."
-- Alex Schure

Create a view with that statement. Access the view with SEQUEL?


Rob Berendt


Dennis
I didn't, but that's a very good idea.

However, it's not a complete solution since some uses of this,
against
my
fervent complaints, will be implemented using the SEQUEL product,
which
has
no support for the WITH statement (among many other things). Don't
get
me
started.

Any response to the "is it expected behavior" part?

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
Time is nature's way of keeping everything from happening at once.


did you try to use an CTE?

With x as (Select TRNADAT, Amount
From MyTable
Where ...
Order By TRNDAT)
Select x.* MTD(Amount)
From x
;

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: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] Im Auftrag von Dennis
Lovelady
Gesendet: Tuesday, 15. June 2010 15:30
An: 'Midrange Systems Technical Discussion'
Betreff: SQL row processing order for UDF

I created a UDF like a more complex version of this:

CREATE FUNCTION MTD(date, decimal(11,2)

RETURNS DECIMAL(13,2)

RETURNS NULL ON NULL INPUT

.

The select would like like:

SELECT TRNDATE, AMOUNT, MTD(AMOUNT)

ORDER BY TRNDATE



And ideally the result would be a running total of month-to-date
values.
Pretty slick.



What I found, though, leads me to believe that the MTD function is
being
called before the ORDER BY, and that's giving me wildly incorrect
results,
even when the source table is already in that sequence. When the
source
table is already in the correct sequence and I drop the ORDER BY, I
*seem*to* get the results that I want, but I doubt there's any
guarantee of
that; besides, that's a requirement that'll be hard to meet. So my
two-part
question is: Is this expected behavior? Is there a way around
this?



Dennis E. Lovelady
AIM/Skype: delovelady MSN: fastcounter@xxxxxxxxxxxx
<http://www.linkedin.com/in/dennislovelady>
www.linkedin.com/in/dennislovelady --
"A fanatic is one who can't change his mind and won't change the
subject."
- Winston Churchill



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