Erick Papadakis wrote:
> How would you like to use a database that has nuances like these --
> http://forums.mysql.com/read.php?20,141120,141120#msg-141120
Err - an empty string is not the same as null, so that is perfectly valid.
Null means unknown, an empty string is not unknown - it's a known value
(which happens to be nothing, but it's still known).
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