Re: DOU/DOW for READ Loops

["James W. Kilgore" <qappdsn@xxxxxxxxxxxxx>]

Joep,

You forgot one, external files are not SAA compliant.  Like anyone cares <g>

Joep Beckeringh wrote:

> Uh, we do.
>
> I might stick to that, but you'll probably reply 'Why?' (maybe with more
> than one question mark), so I'll try to answer that obvious question as
> well.
>
> Because:
> 1. We like to see in the source which fields we actually use
> 2. We don't like having hundreds of fields from a file in a program, when we
> only need a description.  And no, we don't want an extra logical just for
> the description, and another one for the description and the price, and
> another one ...  And we don't like the risk of having fields overwritten by
> reading another file that happens to have that same field.
> 3. We always have a library list which contains one or more base
> applications as well as customer modifications.  Most of the times these
> modifications need extra fields in the data base, which would imply (when
> using externally described files in RPG) either having a version of the base
> application(s) compiled against the modified data base, or having separate
> logicals for the base record layout and the extended layout.
>
> But rest assured, we don't manually type in record layouts: we have our own
> data base tool that generates (amongst others) the record layouts and is
> able to adjust the RPG-specifications.
>
> Joep Beckeringh
>

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