Re[2]: Useful Oracle books - C.J. Date theory vs. practicality

From: Jonathan Gennick <jonathan_at_gennick.com>
Date: Sat, 29 May 2004 17:53:36 -0400
Message-ID: <01712762352.20040529175336@gennick.com>

Saturday, May 29, 2004, 3:27:53 PM, Lex de Haan (lex.de.haan_at_naturaljoin.nl) wrote:

LdH> yes and no ... the ANSI/ISO SQL standard offers the three operators you
LdH> need:
LdH> "IS TRUE", "IS FALSE", and "IS UNKNOWN".
LdH> But as far as I know, no vendor has implemented these.

I've often wished Oracle had them.

I first heard about these operators some 10-10 years ago while working with Rdb. Does Rdb implement them? Were they planning to at one time?

Best regards,

Jonathan Gennick --- Brighten the corner where you are http://Gennick.com * 906.387.1698 * mailto:jonathan@gennick.com

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Received on Sat May 29 2004 - 16:50:33 CDT