If you are only working with RPG for externalizing Data Access, I'd suggest
returning the result as Data structure.
Returning the result as JSON makes it more flexible, especially when calling
from other programming languages, but the JSON data must be parsed on the
other side.
... just as an aside, try to move as much logic into the database, i.e. use
(complex) views, user defined (table) functions and other database
techniques to reduce your (RPG) source code to a minimum.
Mit freundlichen Grüßen / Best regards
Birgitta Hauser
"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not training them
and keeping them!"
?Train people well enough so they can leave, treat them well enough so they
don't want to.? (Richard Branson)
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Richard
Schoen
Sent: Donnerstag, 30. Januar 2020 19:03
To: rpg400-l@xxxxxxxxxxxxxxxxxx
Subject: Returning Resultsets from RPG Subprocedures
Hey RPG folks,
In thinking about using RPG subprocedures and service programs for querying
individual records and record sets, what would be the best way to call a
subproc that returns a resultset and have it return the data to the calling
program ?
For my discussion the calling program could be another Green Screen app or a
web app.
What are my options for most universal DB access code re-use ?
-Return as data structure ?
-Return as JSON or XML packet ?
-Write to temp DB table ?
-What about actually returning the results object ?
I suppose just using copy books is an option to include at the code level
on-the-fly.
Insight appreciated since I don't do as much RPG as I used to.
Thanks
Regards,
Richard Schoen
Web:
http://www.richardschoen.net<
http://www.richardschoen.net/>
Email: richard@xxxxxxxxxxxxxxxxx<mailto:richard@xxxxxxxxxxxxxxxxx>
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