Re: SQL processing in RPG programs

[Marco Facchinetti <facchinetti@xxxxxxxxx>]

Talking about V4.4 RPGIV:
The support is very manual, you have to test or set the
null indicator with the bif %NULLIND. If you need to work
with null capable fields otherwise, don't do anything.
The real problem is passing fields as parameters
(prototyped or not) to other programs since the support of
null capable fileds is only for database fields. I mean you
cannot declare a field in D-spec as null capable neither
you can define a DS from a PF expecting to get null capable
fileds in the DS even if the original PF had null capable
fileds.
By the way how do you test if a field resulting from an
embebbed sql statement is null? I don't know how to handle
since is not the same as RPGIV. Somebody know other ways?

--- ilechr@cbs.fiserv.com wrote:
> 
> 
> Gentlemen and gentlewomen,
> 
> At our company the tradition has always been to use
> embedded SQL for retrieving
> data from SQL tables for use in RPG programs.
> 
> When I asked why the good old fashioned F spec and
> opcodes SETLL, CHAIN etc were
> not used the response was that null capable fields in the
> SQL tables made this
> an unreliable method to adopt.
> 
> Question : Just how well can RPG4 handle null capable
> input files??
> 
> Robert
> 
> 
> 
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