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Not at all. Like I say above, right tool for the job. I don't doubt that all those companies use MySQL for something, indeed probably every large company in the world has at least one instance of it somewhere.

For example, taking the first company on your list that actually deals with real stuff in the real world rather than just running a website, DHL, here I see http://www.oracle.com/us/corporate/press/037809 - they're an Oracle shop. I could continue but I think I've proved my point.

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