RE: DoU...

I would create a foreign key (keylist) with the key being EqId, EqNo, RefB.
Then I would chain to that key...
keylist     CHAIN       filename
            IF          %found
            (your code)
            ENDIF
-----Original Message-----
From: owner-rpg400-l@midrange.com [mailto:owner-rpg400-l@midrange.com]On
Behalf Of Jim Langston
Sent: Friday, December 08, 2000 6:15 PM
To: RPG400-L@midrange.com
Subject: DoU...


I am writing a new program, and one of the things I am trying to do is
to see if a record already exists.  The Key for this record has the
Equipment Number (in 2 parts, EqId and EqNo) and Entry date.

What I am actually looking for is the record with the same equipoment
number and the existing RefB (Customer Refernace Number) matching.

This is the way I'm doing it, and obviously after this code I am going
to have to do a If FoundMatch = *On, or to put a call to a subroutine
just before, or after, the Eval FoundMatch = *On.

It's not, IMO, real clean code.  I seem to think it can be streamlined a
bit.  I am only reading the records with the same container number as I
use a SetLL and my DoU will fail when the container doesn't match.

Any suggestions?  All comments welcome.

 C                   Eval      FoundMatch = *Off
 C     CCOHD_Key     SetLL     OHdRc
 C                   Read      OHdRc
 C                   DoU       FoundMatch = *On
 C                             Or %Eof(OHdRc)
 C                             Or EQEqId <> RXEqId
 C                             Or EqEqNo <> RXEqNo

 C                   If        %Trim(OHBL#) = %Trim(RXInv#)
 C                   Eval      FoundMatch = *On
 C                   Else
 C                   Read      OHdRc
 C                   EndIf

 C                   EndDo

Regards,

Jim Langston
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