Re: Sensible and NonsenSQL Aspects of the NoSQL Hoopla

On 2013-09-04, Jan Hidders <hidders_at_gmail.com> wrote:
> On 2013-09-03 19:46:22 +0000, Eric said:
>
>> On 2013-09-03, vldm10 <vldm10_at_yahoo.com> wrote:
>>> Dana utorak, 3. rujna 2013. 06:02:38 UTC+2, korisnik James K. Lowden
>>> napisao je:
>> ...
>>
>>> What Codd did not do that is that he did not say that he copied Gottlob
>>> Frege. The Relational Model is copy of Frege's theory. And this is a bad
>>> copy, because Codd did not understand completely Frege's theory.
>>
>> If it's a bad copy, maybe it's not a copy at all. Are you saying that
>> Codd deliberately copied the theory and deliberately chose to not
>> acknowledge it?
>
> Codd explicitly referred to first-order logic in his work, so the link
> with Frege was clearly made. A reference to Tarski would have been
> nice, though. :-) The clear link notwithstanding, the relational model
> cannot be meaningfully described or thought of as a copy of FOL, either
> bad or good, since it has a very different purpose and makes entirely
> different claims about its purpose and utility. To confuse the two is
> misunderstanding entirely what database theory and database models are
> about.

Well put. Thankyou.

Eric

-- 
ms fnd in a lbry