RE: SQL Select This and/or That

Hi Jack
Try this
select a.field1, b.rdItmVlu, c.rdItmVlu from HeaderFile A, DetailFile B, DetailFile C

WHERE (a.Key1 = B.Key1
AND b.RcdType = 'ABC'
AND b.rdItmVlu <> ' ')
OR
(a.Key1 = c.Key1
AND c.RcdType = 'XYZ'
AND c.rdItmVlu <> ' ')

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@xxxxxxxxxxxx] On Behalf Of Jack Prucha
Sent: Wednesday, March 23, 2016 1:12 PM
To: midrange-l@xxxxxxxxxxxx
Subject: SQL Select This and/or That

I'm having a hard time visualizing how to do this. There's a "Header" and "Detail" file where I want to return information from both whenever at least one of these situations occur. What I've coded only returns if both situations occur. This gets me most of what I want:

select a.field1, b.rdItmVlu, c.rdItmVlu from HeaderFile A, DetailFile B, DetailFile C

WHERE a.Key1 = B.Key1
AND b.RcdType = 'ABC'
AND b.rdItmVlu <> ' '

AND a.Key1 = c.Key1
AND c.RcdType = 'XYZ'
AND c.rdItmVlu <> ' '

Selection should occur if either the ABC or XYZ record has the, well, undesired values rather than my example which selects only if both records meet the selection criteria. I know I can use the Coalesce to default the rditmvlu for which ever record isn't there. But how can I "subselect" and return the value back to the original select? Can't assume each record type exists.

7.1 with all the TRs installed

Thanks in advance!

Jack Prucha
Programming Team Supervisor
College Foundation, Inc.
919.835.2530

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