Re: General semantics
From: Clifford Heath <no_at_spam.please.net>
Date: Sun, 23 May 2010 08:33:03 +1000
Message-ID: <4bf85b9f$0$12241$afc38c87_at_news.optusnet.com.au>
Date: Sun, 23 May 2010 08:33:03 +1000
Message-ID: <4bf85b9f$0$12241$afc38c87_at_news.optusnet.com.au>
Mr. Scott wrote:
> You're oversimplifying. It is not necessary for keys to be permanent
> identifiers. Just because a tuple contains *within itself* a key doesn't
> necessarily mean that that key permanently identifies an object in the
> domain.
I didn't make that over-simplification. You just assumed it. I never said "permanently".
Since you bring up a warehouse model, have a look at this ORM/CQL model and the SQL for it: <http://dataconstellation.com/ActiveFacts/examples/index.shtml#Warehousing> It doesn't have the Aisle/Bin thing, but it has many similar cases. Received on Sun May 23 2010 - 00:33:03 CEST