RE: Externalizing I/O

"RPG400-L" <rpg400-l-bounces@xxxxxxxxxxxx> wrote on 10/27/2016 01:13:23
PM:

As I understand it, you have a DS in /copybook and both your single
IO service program and all programs reference that /copybook.

Example:
Dcl-ds myDS qualified template;
Field1 char(20) ;
Field2 char(20);
Field3 packed(7:2);
End-ds;

How do you prevent errors when you change the /copybook and
recompile IO service program without changing the programs?

Example:
Dcl-ds myNewDS qualified template;
Field1 char(40) ;
Field2 char(40);
Field3 packed(8:2);
End-ds;

If you change the definition of an existing column in that manner
then all bets are off. We only wanted to address the issue of adding new
columns without having to recompile all referencing programs.

Sincerely,

Dave Clark