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  1.  Home
  2. RPG400-L
  3. October 2016

Re: RPG redbook

That makes sense, it lowers the bar to jump into externalizing I/O. I guess I just don't consider it very modern. The introduction to the database design got a lot friendlier in the last 16 years.

Old

"The initial database design

Our initial database doesn't really deserve the term "design". It is a System/36

style flat file with multiple record types. Sound familiar?"


New

"The initial database design

The initial database design is a misnomer. It is a System/36 style flat file with multiple record
types."


Jon, what part of the new draft did you elaborate?


Joni.

________________________________
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxx> on behalf of Jon Paris <jon.paris@xxxxxxxxxxxxxx>
Sent: Saturday, October 22, 2016 12:11 AM
To: Rpg400 Rpg400-L
Subject: Re: RPG redbook

Not going to comment on the SQL/GOTO bit - haven’t read that and I hate SQL’s pathetic error handling to begin with.

But … DDS is to be expected. It is after all a book about what you _should_ be doing - if there are no points of reference for those who have not yet made the jump …


Jon Paris

www.partner400.com<http://www.partner400.com>

www.SystemiDeveloper.com<http://www.SystemiDeveloper.com>


On Oct 21, 2016, at 4:52 PM, Joni V. <joni_vanderheijden@xxxxxxxxxxx> wrote:

Sneaky Redbooks, trying to get their GOTO statements back using the SQL whenever statement.

No, seriously, isn't including those kind of jumps in your code a really bad idea? It's on page 180 of the Redbook by the way.

I was also a bit surprised to see a DDS file definition. But it's fantastic to see a re-vamp of this Redbook!

-Joni

________________________________
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxx> on behalf of John Yeung <gallium.arsenide@xxxxxxxxx>
Sent: Friday, October 21, 2016 12:08 AM
To: RPG programming on the IBM i (AS/400 and iSeries)
Subject: Re: RPG redbook

On Thu, Oct 20, 2016 at 6:00 PM, Evan Harris <auctionitis@xxxxxxxxx> wrote:
I think I've learnt more from fixing coding errors in examples than I ever
did from cutting and pasting working code

Ah, so the errors are a deliberate ploy by the author(s) to make the
reader learn more. Clever. ;)

Ironically, one of the worst books I ever remember trying to learn from was
a book on Python.

Worst because it was TOO copy-pastable, or because it had too many
errors, or because it just didn't explain things well?

If I may ask, do you remember which book it was?

John Y.
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