> Hello
>
> you have to parse a sqlerrm variable

That's one way to do that. Another - more complex but more correct in many
cases is using two separate blocks.

BEGIN
   ... do stuff involving constraint A
EXCEPTION
   WHEN unique_violation THEN ...
END;

BEGIN
   ... do stuff involving constraint B
EXCEPTION
   WHEN unique_violation THEN ...
END;

But that's not possible if there are two unique constraints involved in a
single SQL statement (e.g. inserting into a table with two unique
constraints).

regards
Tomas


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