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  • Subject: RE: Join Logical like WRKQRY's join type '3'
  • From: "Shaw, David" <dshaw@xxxxxxxxxxx>
  • Date: Tue, 7 Mar 2000 14:07:05 -0500

> -----Original Message-----
> From: Bale, Dan [mailto:DBale@TFSA.Textron.com]
> 
> Thanks for all of the replies.  (except Pat for the "MR" 
> solution -just
> kidding-)  Although, since the solution requires random access, "MR"
> wouldn't have worked anyway.
> 
> Three of you suggested SQL.  Can I presume it can't be done 
> with LF DDS?

Dan,

I may be wrong, but I don't remember a way to explicitly define an *ONLYDFT or
exception join in DDS.  Having said that, I think that there's a way to cheat.
Use the file level keyword JDFTVAL to get a *PARTOUT partial outer join, then
put a record selection test in comparing the item number field from the
secondary file to blank.  As long as you don't have any records in your primary
file with a blank item number, then the only way for the join field in the
secondary file to be blank is for it to be a non-existent record.  (Note: This
assumes that blank is the default value for item number in the file.)

I very vaguely remember doing something like this on the /38 back about '87, and
I know I made it work before I was done, so I'd say it has a pretty good shot.
I hope it helps!

Dave Shaw
Spartan International, Inc.
Spartanburg, SC
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