Re: Nearest Common Ancestor Report (XDb1's $1000 Challenge)

Em Thu, 20 May 2004 23:38:58 +0200, Hugo Kornelis escreveu:

> On 19 May 2004 20:03:18 -0700, Neo wrote:
>
> (snip class/domain stuff)

>>> a datatype as a superset of many domains.

        Where did this come from?

        AFAIK a data type is the domain, plus operators.

>>Suppose, car is the class of car1. Car1 has the attribute color. The
>>attribute's value can be from the domain containing red and green.
>>Would data type be red, green and blue (assume these are all the
>>colors)?

        Are you thinking SQL? AFAIU it would be {red, green} plus applicable operators.

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