Re[2]: Useful Oracle books - C.J. Date theory vs. practicality
- From: Jonathan Gennick <jonathan@xxxxxxxxxxx>
- To: Lex de Haan <oracle-l@xxxxxxxxxxxxx>
- Date: Sat, 29 May 2004 17:53:36 -0400
Saturday, May 29, 2004, 3:27:53 PM, Lex de Haan (lex.de.haan@xxxxxxxxxxxxxx)
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@xxxxxxxxxxx
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