Re: RPG Service Program vs Include Source for Shared Subprocedures and SQL Calls

Yeah - the "late binding" that ILE implements with service programs is strange.

Dynamically resolved service programs, but "statically" resolved procedures with "slot-numbers" instead of procedure signatures grew me some grey hair.

I will never understand, why this decision was made - maybe someone with deeper insight in the development of ILE can clarify this.

Regards,
Daniel


> Am 21.03.2026 um 12:29 schrieb Niels Liisberg <[email protected]>:
> 
> .. but service program signatures quickly becomes a nightmare for version
> control.. yes you can … but.. first you had one problem with control the
> version .. now for each signature you have yet an issue..
> 
> Been there - done that.. never again…
> 
>> lør. 21. mar. 2026 kl. 18.21 skrev Brian Parkins <[email protected]>:
>> 
>> Even under these circumstances a *SRVPGM <may> provide a solution.
>> 
>> Multiple versions of the same procedure can co-exist in a single
>> *SRVPGM, (provided the names are unique). The flexibility of Signatures
>> and the Export Symbol Table.
>> 
>> 100% agree that *SRVPGMs are the better option; /COPY and /INCLUDE
>> should - in the main - be used only for Prototype inclusion, (with /IF,
>> /DEFINE, etc. as required).
>> 
>> Brian.
>> 
>>> On 21/03/2026 05:22, Niels Liisberg wrote:
>>> The is some exceptions: versioning - where different clients need
>> different
>>> versions at a certain point in time.
>> 
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