Re: query-question

|| is the string concatenation operator, so what you're doing is
equivalent to using the concatenated values of those fields.
I have no experience with ILIKE, but you might figure out yourself
what's wrong...

HTH,
Csaba.


On Thu, 2003-09-11 at 13:36, Alexander Blüm wrote:
> hello,
>
> I'm facing an odd problem.
> I have a query:
>
> SELECT "Kürzel", "Autor(en)", "Titel"
> FROM "tblTitelangaben"
> WHERE "Titel"||"Kürzel"||"Monographie-Kürzel"||"Autor(en)" ILIKE '%er%';
>
> this works like a charm.
>
> but if I add another ||"something" - which might be emtpy, I get no
> results.. why?
>
> WHERE
> "Titel"||"Kürzel"||"Monographie-Kürzel"||"Autor(en)"||"Herausgeber"
> ILIKE '%er%';
>
> || is the same as "OR", is it not?
>
> 1 OR 0 = 1
> 1 OR 1 = 1
> 0 OR 0 = 0
> right?
> therefore I should get the same, or more results...
>
> any hints are greatly appreciated!
>
> TIA,
> alex
>
>
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