Re: Interesting article: In the Beginning: An RDBMS history

"Marshall Spight" <marshall.spight_at_gmail.com> wrote in message news:1144567187.961347.27720_at_e56g2000cwe.googlegroups.com...
> x wrote:
> >
> > I remember that the order of the rows is also irrelevant.
> > Why we name attributes with strings and we don't name the rows ? :-)
> > Why not the other way around ? :-)
>
> You smile, but it's actually an interesting question.
>
> The columns have an identity that must be unique; there is this rule
> that names identify columns.
>
> The rows have an identity that must be unique; there is this rule
> that keys identify columns.
>
> Coincidence? Are these two examples of the same rule, just with
> different key domains?
>
>
> Marshall
>
Marshall,

It is worth a smile.

But adding a row is data manipulation, while adding a column is data definition. Something is radically different. Received on Sun Apr 09 2006 - 09:50:47 CEST