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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: Wed, 22 Jun 2005 13:37:47 +0200
Message-ID: <0cjib152ea23e2nt8mvts4u5thu78kqbg5@4ax.com>


On Tue, 21 Jun 2005 19:14:25 GMT, Jan Hidders <jan.hidders_at_REMOVETHIS.pandora.be> wrote:

>> Yet, I agree that FDM queries are still different from purely
>> declarative queries. But this difference is rather subtle and difficult
>> to explain.
>
>Just to avoid a few misunderstandings here. The fact that DAPLEX is
>essentially (i.e. can be with some minor syntactical changes thought of
>as) a declarative language is a well-known and widely accepted fact in
>the field of database theory.

Essentially declarative language is not the same as purely declarative language.

For instance Tutorial D is far from being purely declarative.

Regards Received on Wed Jun 22 2005 - 06:37:47 CDT

Original text of this message

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