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  2. RPG400-L
  3. February 2002

RE: data structure has no valid subfields

> From: Buck Calabro
>
> <chuckle> I asked IBM this question on my very VERY first subfile
> program on
> S/38.  The answer I got was to read the Fine Manual.  Basically, the idea
> behind this aberration is to allow one to read a bunch of DB
> records, WRITE
> them to a subfile and then READ/C them back out without having to
> go back to
> the DB to get the "output only" fields.

Which begat the practice of using subfiles as "internal work files", a
subject which I care to discuss no further...

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