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

From: Natural Join B.V. <lex.de.haan_at_naturaljoin.nl>
Date: Mon, 31 May 2004 16:18:00 MET
Message-Id: <20040531141800.B98432C3D8C@ha-smtp3.tiscali.nl>

I quickly searched the online Oracle Rdb SQL Reference, but could not find these operators, or something similar. whether or not they were ever planning to implement them, I don't know ...

Cheers,
Lex.

> 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 Mon May 31 2004 - 09:15:17 CDT