On Mon, 19 Jul 2004 02:41:36 +0000, Marshall Spight wrote:
>
> In light of this view, I don't see anything in Date's interpretation
> of 1NF that means that values aren't atomic anymore. On the
> other hand, I could imagine you describing this interpretation
> of "atomic" as trivializing the concept of atomicity as well,
> which it kind of is.
No no, that's not the problem, or at least not what I think is the
problem. Date allows the NEST and UNNEST operations from the nested
relational algebra. (He calls them GROUP and UNGROUP for some reason.)
That means that you no longer consider them atomic because they allow you
to split a nested relation into its constituent parts.
Received on Mon Jul 19 2004 - 04:46:26 CDT
