Re: does a table always need a PK?
Date: 29 Aug 2003 07:40:27 -0700
Message-ID: <4b5394b2.0308290640.49ce11f3_at_posting.google.com>
"Heikki Tuuri" <Heikki.Tuuri_at_innodb.com> wrote in message news:<p972b.357$yu.174_at_read3.inet.fi>...
> Hi!
>
> I would like to bring up to the discussion what I remarked in the other
> discussion thread on MySQL RDBMSness.
>
> If we have a quantum mechanical system where electrons are
> indistinguishable, would it not be natural to create a table of electrons
> without a primary key?
>
> Best regards,
>
> Heikki Tuuri
> Innobase Oy
"do not try to bend the spoon, that is impossible. Instead realize the truth. ... There is no spoon." - The Matrix
You may need to learn some physics. In a quantum mechanical system there is no electron. There is a wave function. you might consider writing the wave function of single electrons, but when you put them together the result is a different wave function describing the whole system. I haven't done real physics for too many years, but I really doubt they try to model individual electrons using a database. At least not the way you propose.
Without a PK, the user/developer has essentially no control over the data selected. Received on Fri Aug 29 2003 - 16:40:27 CEST