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Home -> Community -> Usenet -> comp.databases.theory -> Re: Does Codd's view of a relational database differ from that ofDate&Darwin?[M.Gittens]

Re: Does Codd's view of a relational database differ from that ofDate&Darwin?[M.Gittens]

From: Alfredo Novoa <alfredo_novoa_at_hotmail.com>
Date: Thu, 23 Jun 2005 16:05:59 +0200
Message-ID: <5eglb1ddsiq97jnpus1gotfapgdu3q8i21@4ax.com>


On Thu, 23 Jun 2005 15:33:07 +0200, Jon Heggland <heggland_at_idi.ntnu.no> wrote:

>I might agree that the model presented as a "pure object-oriented
>database model" in the paper you mentioned is slightly different from
>the (most common interpretations of the) network data model.

In what they differ?

>(Another point is the question of what "OO" in that context really
>means---the paper does not mention encapsulation, polymorphism or
>inheritance.

It usually means user defined type support. OODBMS are network DBMS with some user defined type support.

> What is an object?)

A thing :)

Regards Received on Thu Jun 23 2005 - 09:05:59 CDT

Original text of this message

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