Forum Post: RE: Why check for ? on a char field

  • Thread starter Thread starter Stefan Drissen
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Stefan Drissen

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Why? There is a nice differentiation between 'I do not know the city (yet)' and 'I know there is no city' (which may be a bit strange in the case of an address with a city, but can apply for other fields). On the performance side a "" will be able to bracket on an index, whereas will not.

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