Re: The relational model is a wrong theory
Date: Sat, 12 Oct 2019 20:30:57 -0700 (PDT)
Message-ID: <ca586af7-5718-428f-a7f6-04cd22fa5bfa_at_googlegroups.com>
Dana ponedjeljak, 7. listopada 2019. u 17:38:53 UTC+2, korisnik vldm10 napisao je:
> As I wrote in the title of this thread - the Relation model is a wrong theory.
> What's the matter here?
> Let me explain this on the following example:
> A man named John Smith had black hair in 2010. In 2019, his hair was white. According to Codd's Relational model, these are two different people.
> The aforementioned John Smith committed murder in 2010. This fact was discovered by police in 2019. The court acquitted John Smith as innocent because he has white hair and the killer had black hair. The Court relied on the theory named "Relational model".
> Entity Relationship model is also a wrong theory.
>
> Vladimir Odrljin
I really do not understand your comment, so I would ask you to explain your claim in detail so that I can respond.
Vladimir Odrljin Received on Sun Oct 13 2019 - 05:30:57 CEST