Re: Objects and Relations
Date: Wed, 14 Feb 2007 16:22:24 -0000
Message-ID: <4_CdnfMsd4LYqk7YnZ2dnUVZ8tChnZ2d_at_pipex.net>
"Marshall" <marshall.spight_at_gmail.com> wrote in message
news:1171467912.455461.249210_at_a75g2000cwd.googlegroups.com...
> On Feb 14, 7:14 am, "Roy Hann" <specia..._at_processed.almost.meat>
> wrote:
>>
>> >> As an addendum, once implemented a surrogate key becomes a natural
>> >> key. I find this fascinating - it seems somehow analagous to "Nature
>> >> abhoring a vacuum".
>>
>> > I think it has more to do with the human drive to communicate.
>>
>> I struggle with that. If, for some reason, I choose to say (just) that,
>> "I
>> have a tin of cat food, and its name shall be 1345235", what have I
>> communicated? No one in the real world could ever point it out and say,
>> "Hey! There goes 1345235." And nor could I.
>
> Let's think of customers and customer ids; it's a very similar case.
Roy Received on Wed Feb 14 2007 - 17:22:24 CET