Re: Arrays

Hi Richard,

No, not confused, you could do it either way as you point out.  The MODS has
the advantage that you can refer to the before or after fields using the
same field names, simply by changing the occurrence, without having to
actually move the data, which could be useful if you had some routine (e.g.
print) that you wanted to use on both images.

By using based externally defined DS's, you can directly compare fields in
different occurrences, without having to move any data, so you could sort
the MODS for example.

However, what would be nice is if we could externally define subfields of an
array.

Peter Dow
Dow Software Services, Inc.
909 793-9050 voice
909 522-3214 cellular
909 793-4480 fax



----- Original Message -----
From: "Richard B Baird" <rbaird@esourceconsulting.com>
To: <rpg400-l@midrange.com>
Sent: Thursday, July 25, 2002 12:28 PM
Subject: Re: Arrays


>
> Peter,
>
> you can do all of these without using mult occurs data structures - you
> might be confusing that with simple single level externally described
DS's.
>
> rick
>
> -----original message-------
> External definitions of the subfields? For keeping before/after images of
a
> record; you can use based DS's with prefixes to directly compare fields in
> different occurrences.
>
> Peter Dow
> Dow Software Services, Inc.
> 909 793-9050 voice
> 909 522-3214 cellular
> 909 793-4480 fax
>
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