Michael Glaesemann wrote:
> On Aug 9, 2004, at 6:42 PM, Oliver Fromme wrote:
>
> > Well, I assume that all your book titles are unique,
>
> Realistically, probably not a good assumption. Not one I'd want to bank
> by db schema on. You might be luckier with something like ISSN, but I
> don't know enough about re-use of those types of numbers.
My example was a bit simplified for the matter. Probably
those rows contain more information than just the title,
but also the author, publisher, date, ISSN/ISBN etc.
I think it is a reasonable assumption that the whole rows
(excluding the serial IDs) are unique.
Best regards
Oliver
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Oliver Fromme, secnetix GmbH & Co KG, Oettingenstr. 2, 80538 München
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