Re: Opinions on determining which constraint

["Paul Tuohy" <tuohyp@xxxxxxxxxxxxx>]

Hi Rob,

I wish - butI don't think so :-). The INFDS has the CPF502F message Id in
it. The PSDS contains the first level message text (which simply says "Check
constraint violation on member xxxxxxxxxx") but the constraint name is in
the second level message text.

Since the constraint name can be very long, I'm not sure where it would fit
in either of the DS's :-)

Thanks

Paul



----- Original Message -----
From: <rob@xxxxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Monday, July 19, 2004 4:23 PM
Subject: Re: Opinions on determining which constraint


> Rather tangential, but instead of retrieving messages from the calling
> procedure message queue, will not just checking the PSDS or the FINFDS
> give you the constraint name?
>
> Rob Berendt
> --
> Group Dekko Services, LLC
> Dept 01.073
> PO Box 2000
> Dock 108
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> http://www.dekko.com
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>
> "Paul Tuohy" <tuohyp@xxxxxxxxxxxxx>
> Sent by: rpg400-l-bounces+rob=dekko.com@xxxxxxxxxxxx
> 07/18/2004 05:45 PM
> Please respond to
> RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>
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> Subject
> Opinions on determining which constraint
>
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>
> Hi All,
>
> I am looking for opinions/comments on how people identify which constraint
> caused a file exception error.
>
> For the sake of brevity, let's just deal with check constraints. Here is
> what I am currently doing.
>
> My program traps errors using the (E) extender on writes, updates etc.
>
> If there is an error with a status of 1022, then a procedure is called
> which retrieves messages from the calling procedure message queue until it
> gets message CPF502F.
>
> I then scan the message data looking for the constraint name - I have a
> naming convention that all constraint names start with CHECK_ . I am not
> ecstatic about using a naming convention to identify constraints.
>
> I don't want to "hard code" the starting position of the constraint name
> in the message data - it may change in the future.
>
> Does anybody have a different approach?
>
> TIA
>
> Paul Tuohy
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