Robert Treat wrote on 08.04.2009 23:06:
http://www.databasedesign-resource.com/null-values-in-a-database.html
That is a very - hmm - strange article.
One of the proofs that nulls are bad is that "SELECT * FROM theTable" (theTable
being empty) returns nothing, whereas SELECT COUNT(*) FROM theTable returns a
single row with 0 (zero):
"This last example is even worse: The SELECT * returns 'No rows selected', but
the SELECT COUNT(*) returns ONE row with the value 0!"
I stopped reading the article at that point...
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