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Re: [PROGRAMMERING] [SQL] Betinget INSERT?



Martin Møller Skarbiniks Pedersen skrev:
> Jacob Sparre Andersen skrev:

> > Har SQL en kompakt og effektiv formulering af at man gerne vil
> > indsætte en række i en tabel, hvis der ikke allerede findes en
> > række med samme nøgle?
> 
> Hvis du aldrig vil accepterer to rækker med samme nøgle, så bør du
> lave et unique index på nøglen.

Det har jeg skam også gjort.  Jeg regner bare ikke fejlhåndtering for
at være en effektiv løsning.

Jacob
-- 
"So this is how liberty dies, with thunderous applause..."


 
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