RAISE EXCEPTION 'Your specific error message';
works just great.
----- Original Message -----
From: <derrick@grifflink.com>
To: <pgsql-novice@postgresql.org>
Sent: Monday, September 20, 2004 1:09 PM
Subject: [NOVICE] Return Value on UPDATE trigger
> On a table update, I want to check for certain conditions in a trigger
> function, and if a condition is met, NOT ALLOW the update. Not a big
> problem...I can accomplish that.
>
> My question is this: How can I send a message back to the calling
> application telling the user that the update was denied or failed, and for
> the user to try again? Basically, I need a way to send a return value
back
> to the application (a 0 or a 1) when a trigger function says so.
>
> Any ideas?
>
> Thanks,
> Derrick
>
>
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