Re: Activation group for an AFTER external database trigger...

Thanks Alan and Birgitta, to clarify we do not use commitment control.

@Alan if *NEW is used isn't this creating a new activation group each time
the trigger is fired? Isn't this adding additional overhead.
@Birgitta, If *CALLER is used then is the activation group (the activation
group that *caller refers to) the activation group of the program which
caused the program to fire?
For example if PGMA runs in a named activation grp (ACTGRP_A) and updates a
record in the file causing the trigger to fire. IF *caller is specified
for the trigger then does the trigger run in ACTGRP_A?

Thanks,

Rob

On Wed, Nov 4, 2020 at 11:50 AM Alan Campin <alan0307d@xxxxxxxxx> wrote:

That is assuming you are using Commitment Control and who on the IBM i uses
commitment control? Almost none. If I was wanting to roll back changes, I
would simply use a Before Trigger and monitor for an error to inform the
user that the update did not occur. My opinion only.

The one scenario that I have run into where *Caller was mandatory is an
update coming from an external job (A PC job). The trigger call is from the
OS and the OS is running in default activation group.


On Wed, Nov 4, 2020 at 8:33 AM Birgitta Hauser <Hauser@xxxxxxxxxxxxxxx>
wrote:

A Trigger Program should always run in the *CALLER activation group!
Why? If you are working with commitment control, the default commitment
scope is *ACTGRP, i.e. a COMMIT and/or ROLLBACK will only work properly
within the same activation group.

Mit freundlichen Grüßen / Best regards

Birgitta Hauser


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-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Robert
Rogerson
Sent: Mittwoch, 4. November 2020 17:23
To: RPG programming on the IBM i (AS/400 and iSeries)
<rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: Activation group for an AFTER external database trigger...

Hi All, I've been trying find how to define the activation group on an
external (RPG) database trigger.
Should I be using ctl-opt actgrp(*new) orctl-opt actgrp(*caller)?

If anyone knows of a link to a reference that would be great too.

Thanks,

Rob
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