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Alan, here's a few sites that may help out a bit plus assist any of our MidRange users
that contribute here. I refer to this material often. There's many more but this is a decent start.


http://www.tylogix.com/ - Select the SQL page on the left.

https://www.rpgpgm.com/ - Simon Hutchinson's site. Excellent SQL reference material.

http://www.as400pro.com - Browse by Topic then ISeries SQL.

Enjoy!

Very Respectfully,
Michael Mayer
IBM i Support / System Admin.
IT Operations.
The Florida Bar
651 E. Jefferson St
Tallahassee, Florida 32399-2300
mmayer@xxxxxxxxxxxxxx
https://www.floridabar.org
Office: 850.561.5761
Cell: 518.641.8906


message: 6
date: Wed, 12 Aug 2020 14:18:32 +0000
from: Alan Shore via MIDRANGE-L <midrange-l@xxxxxxxxxxxxxxxxxx>
subject: RE: [EXTERNAL] Re: Need to capture information when something
is NOT there

Thanks for your response Vernon
Ive been trying to get this final piece of the logic, with no success, for almost a week now Your suggestion of where (fld1, fld2) not in (select fld1, fld2 from 6th file) maybe what I need

Once I get a couple of minutes (lol) I will play with this

Alan Shore
E-mail : ASHORE@xxxxxxxx
Phone [O] : (631) 200-5019
Phone [C] : (631) 880-8640
?If you're going through hell, keep going.?
Winston Churchill

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of Vernon Hamberg
Sent: Wednesday, August 12, 2020 8:59 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: [EXTERNAL] Re: Need to capture information when something is NOT there

Hi Alan

If you add another EXCEPTION JOIN on those 2 columns, your list would be what you want - or you can do a NOT IN - where (fld1, fld2) not in (select fld1, fld2 from 6th file) - that's really the same as EXCEPTION JOIN, though.

Do you need that extra column? What would it contain? I'm guessing some constant label, such as "not in file 6" or 'X' - just add that as a constant to the "field" list.

So what am I missing??? :)

Vern

On 8/12/2020 7:19 AM, Alan Shore via MIDRANGE-L wrote:
Hi everyone
We are at V7r3
I hope that what I am about to ask, makes sense

I have an SQL query using 5 files with joins, exception joins etc,
that extracts a number of columns I would like to add another column,
that would use data from two of these columns and look in a sixth file
and let me know if there are NO records in that sixth file with those
2 values I cannot use any data from this sixth file as I am looking to
see if a "no record" condition exists

Anyone any ideas as to how to achieve this?

Alan Shore
E-mail : ASHORE@xxxxxxxx<mailto:ASHORE@xxxxxxxx>
Phone [O] : (631) 200-5019
Phone [C] : (631) 880-8640
'If you're going through hell, keep going.'
Winston Churchill


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