Re: Update a field in a file from the trigger on the same file

[Charles Wilt <charles.wilt@xxxxxxxxx>]

A trigger is not a bad idea...

While there will be overhead for the trigger call, there would be no extra
I/O.

Make sure that you use a before update trigger that modifies the value in
the after buffer instead of trying to re-read the record explicitly.

You'll also need ALWREPCHG(*YES) on the tigger.

Charles


On Fri, May 30, 2014 at 11:15 AM, Jeff Young <jyoung0950@xxxxxxxxx> wrote:

> All,
> I have a file that I want to monitor for a change to a specific field.
> If this field becomes negative, I want to set it to zero.
>
> The file is updated by many programs and is my inventory master, so there
> are a large number of transactions all day.
>
> Is a trigger the best way to do this?
> If not, what would be the best method with the least impact on performance?
> If so, what is the impact on performance?
>
>
> The system is at release V7R1M0 L00 TL12115
>
>
> Jeff Young
> Sr. Programmer Analyst
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