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

Lex de Haan said,on my timestamp of 30/05/2004 5:27 AM: 
yes and no ... the ANSI/ISO SQL standard offers the three operators you
need:
"IS TRUE", "IS FALSE", and "IS UNKNOWN".
But as far as I know, no vendor has implemented these.
Note the power of these operators; they accept a Boolean argument.


Yes!  Very nice.  Thanks a lot, will look forward to when
Oracle supports these.

--
Cheers
Nuno Souto
in sunny Sydney, Australia
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