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From: "Mike Preece" <michael@preece.net>
Newsgroups: comp.databases.theory
Subject: Re: Navigation question
Date: 19 Feb 2007 06:13:54 -0800
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On Feb 17, 12:48 pm, "JOG" <j...@cs.nott.ac.uk> wrote:
> On Feb 16, 11:04 pm, "Tony D" <tonyisyour...@netscape.net> wrote:
>
> > User interface navigation != database navigation. In an SQL database
> > (that darn NB borne in mind) there is no notion of "here", so if there
> > is no notion of "here", there can't be a notion of "there", and there
> > obviously can't be a notion of how to "get" "there" from "here".
>
> I like this observation, and it had not occurred to me to illustrate
> it as such.
>
> One can't navigate in an RDBMS because there is no notion of one /
> being anywhere/ at any point in time. And so equally no possibility of
> ever getting lost in a maze of links.

He's a real nowhere Man,
Sitting in his Nowhere Land,
Making all his nowhere plans
for nobody.

Doesn't have a point of view,
Knows not where he's going to,
Isn't he a bit like you and me?
Nowhere Man, please listen,
You don't know what you're missing,
Nowhere Man, the world is at your command.

(Lead Guitar)

He's as blind as he can be,
Just sees what he wants to see,
Nowhere Man can you see me at all?
Nowhere Man, don't worry,
Take your time, don't hurry,
Leave it all till somebody else
lends you a hand.

Doesn't have a point of view,
Knows not where he's going to,
Isn't he a bit like you and me?

Nowhere Man, please listen,
You don't know what you're missing,
Nowhere Man, the world is at your command.

He's a real Nowhere Man,
Sitting in his Nowhere Land,
Making all his nowhere plans
for nobody.
Making all his nowhere plans
for nobody.
Making all his nowhere plans
for nobody.