Re: Implementation of boolean types.
From: Jonathan Leffler <jleffler_at_earthlink.net>
Date: Thu, 14 Jul 2005 05:50:05 GMT
Message-ID: <h2nBe.4816$BK1.4298_at_newsread3.news.pas.earthlink.net>
Date: Thu, 14 Jul 2005 05:50:05 GMT
Message-ID: <h2nBe.4816$BK1.4298_at_newsread3.news.pas.earthlink.net>
-CELKO- wrote:
> SQL deliberately left out Booleans [...]
SQL-1999 and SQL-2003 both have a BOOLEAN type, with recognized values TRUE, FALSE and UNKNOWN. I'm not clear whether NULL is equivalent to UNKNOWN or not; I've not scrutinized the weasel-words carefully enough.
-- Jonathan Leffler #include <disclaimer.h> Email: jleffler_at_earthlink.net, jleffler_at_us.ibm.com Guardian of DBD::Informix v2005.01 -- http://dbi.perl.org/Received on Thu Jul 14 2005 - 07:50:05 CEST