Re: Creating an SQL function using C routines

Basically a C function/procedure call is no different than calling any other ILE language.

But given your example I'm not clear why you need to use C routines at all. From your example a simple re-mapping of char to zoned would give you the right result.

In RPG terms.

Dcl-ds *n;
charVal char(5);
numVal zoned(5) overlay charVal;
end-ds;

charVal = charField;

// At this point numVal (positive or negative) is usable.


Jon Paris

www.partner400.com
www.SystemiDeveloper.com

On Oct 25, 2018, at 10:23 AM, Alan Shore <ashore@xxxxxxxx> wrote:

Hi everyone
Before I forget, we are on V7r3

I know how to create an SQL function using procedures in service programs and have done so many times
My question is,
Is there a way to create an SQL function using C routines
Without going into the "why the %$^^ did you do it that way' explanation, we have a number of fields that are numeric, but stored in alpha fields, where we have to use the C routine QXXZTOI to convert it from alpha to numeric
If the numeric value is positive - then there is no problem in seeing what the numeric value in the alpha field is
However, if the numeric value is negative - then a process I know as over punching (back from when cards were used) is in effect
For example
The value '0001}" is really -10
The value '0002J' is really -21

Now trying to use SQL against fields such as this becomes a no no
Hence my request

I have tried googling for the answer to this, but so far, nothing

As always, any and all answers welcome

Alan Shore
E-mail : ASHORE@xxxxxxxx
Phone [O] : (631) 200-5019
Phone [C] : (631) 880-8640
'If you're going through hell, keep going.'
Winston Churchill

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