Re: Extending my question. Was: The relational model and relational

If you can't weigh things without counting them first, I highly recommend you don't try keep things in bags. This little example is at the heart of why I think bags (when appropriate) are a better model for some things, but they are only appropriate to a user who perceives the real world as a place where things can be weighed without first being counted.

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It's interesting how you are trying to mischaracterize Date as using primitive technology. Multisets are demonstrably more primitive than relations--simply from the fact that they rely on physical location. You are the one promoting the use of "Roman numerals and shells".

I'm only mischaracterizing Date to the extent that I may well be misunderstanding what he meant to say. And it's not surprising that we reach different characterizations of his writing, if the way you interpret words also leads you to believe I'm promoting roman numerals and shells.

SK

Bob Badour wrote:

>If you cannot identify the cans of tuna, how do you place them on the scale?
>And before you can calculate a count from a weight, you must first count
>identifiable cans then weigh them.
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Received on Fri Feb 21 2003 - 16:54:42 CET