You should be able to use a CASE WHEN statement inside this expression and
test for a null itemIdValue. If it is null the you can return ''NULL'' else,
return itemIdValue.
HTH
On Friday 18 February 2005 09:07 am, David Gagnon saith:
> Hi all,
>
> I did a stored procedure and ran into this small problem.
>
> Here itemIdValue may be null and I would have expected quote_literal to
> returns null as a string or the value quoted. For now I think it returns a
> real null. This causes my function to crash.
>
> insertStatement:= ''INSERT INTO IL ( ILNUM, ILTYPE, ILICNUM, ILRRNUM,
> ILQTE, ILPRIX, ts ) VALUES ( '' || idValue ||'', ''|| typeValue ||'','';
> insertStatement:= insertStatement ||
> quote_literal(itemIdValue) || '','';
> insertStatement:= insertStatement ||
>
>
> I haven't found an existing function to handle this case and I hate
> reinventing the Wheel... Is there a function that already handles that?
>
>
> For now I worked around this by using the COALESCE function.
>
> COALESCE(quote_literal(itemIdValue),'' null'') || '','';
> insertStatement:= insertStatement ||
>
> Thanks for your help
>
>
> /David
>
>
>
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