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Re: c.d.theory glossary - RELATION

From: x <x-false_at_yahoo.com>
Date: Fri, 30 Apr 2004 16:34:48 +0300
Message-ID: <40925541@post.usenet.com>

"Laconic2" <laconic2_at_comcast.net> wrote in message news:ke-dnfbLDpzv0g_dRVn-vA_at_comcast.com...

> In the meantime, I think it's unfortunate that both the Relational and
the
> ER model use the word "ATTRIBUTES".

It seems that in relational model the ATTRIBUTES are describing each other.

> The first time I learned the ER model, about 20 years ago, they described
> one of the attributes as a KEY ATTRIBUTE.
> I would say that an entity is REPRESENTED by its key attribute. BUt I'm
not
> sure that's really legitimate.

What comes first: the key or the entity ? :-)

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Received on Fri Apr 30 2004 - 08:34:48 CDT

Original text of this message

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