Re: Generic RPG File Handler for File I/O using OA

The compiler probably uses an internal version of the QDBRTVFD API. You could also use the SYSTABLES (https://www.ibm.com/docs/en/i/7.4?topic=views-systables <https://www.ibm.com/docs/en/i/7.4?topic=views-systables>)

Jon P.

On Jun 23, 2022, at 5:45 PM, Mohammad Tanveer <surgum@xxxxxxxxx> wrote:

Thanks. Just wondering how does OA get name/value pairs of the fields from
a record, I always dreamed of looping through fields and their values in a
generic way without using field names.

Following article is very old but this gave me this crazy thought :)
https://www.ibm.com/developerworks/ibmi/library/i-roaforsql/index.html


On Thu, Jun 23, 2022 at 2:34 PM Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>
wrote:

That's not what RPG OA does... RPG OA lets you use traditional RPG
native I/O file operations, but instead of accessing the table, it calls
your code.

So you couldn't use it to create a procedure with parameters like you
suggest.

Instead, I would simply write a procedure like the one you describe.


On 6/23/2022 4:24 PM, Mohammad Tanveer wrote:

I want to call a Procedure with parameters 1. operation(C,R,U,D), 2.

field

names/values and 2.key fields. Based on key fields Procedure will
update/insert/read only those fields in field names/values. Now I can

use

this procedure in my programs to do I/Os. RPG OA allows some kind of
handler program to do similar functions. But I can't find any good
example :)

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