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Re: The BOOLEAN data type

From: --CELKO-- <71062.1056_at_compuserve.com>
Date: 17 Apr 2003 15:26:02 -0700
Message-ID: <c0d87ec0.0304171426.29003dcb@posting.google.com> 





>> An empty set is different from NULL. <<




An empty scalar query converts to a NULL in Standard SQL, so you have
to watch the usage.



Another problem with BOOLEAN datatypes is that they apply to
propositions; A table is a collection of facts, if you believe Chris
Date.  Opps, we are now working at two different levels an get
allthose self-referencing problems.
Received on Thu Apr 17 2003 - 17:26:02 CDT












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