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Re: quickie.. query from version 3 into version 4.1?
Posted by: Roland Bouman
Date: July 26, 2005 04:38PM

I'm curious, why are 0 or the empty string 'bad' default values? I'd say the meaning of your column determines wheter these are appropriate default values.

Surely, 0 or '' are not basically the same as NULL (although mysql uses these as NULL substitutes), or are they? I always thought that NULL is not really a value, it's more like a marker saying 'Nope, no value here' or 'value not specified', whereas 0 and '' are actual values.

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