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Re: [xml-dev] XML Schema as a data modeling tool

On 1 Oct 2013, at 14:01, Stephen Cameron wrote:

> Hi Michael,
> Not always, I agree that is why relational databases became so dominant, that you have the capability to answer any virtually any question via SQL. But in some cases I think that performance is the main issue (I am not an expert on this by any means),

I didn't say that designing performant databases isn't important. I said that that's not what data modelling is about. Data modelling is about understanding the problem. Once you understand it, that's the time to start designing a performant database: even if necessary cutting corners by simplifying the model.

Michael Kay

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