"Dawn M. Wolthuis" <dwolt_at_tincat-group.com> wrote in message news:<caimee$rnh$1_at_news.netins.net>...
> Combination of metadata and data that is designed out of the relational
> model, such as orderings, and attributes with cardinality > 1 that are
> trimmed back to 1 for the relational model.
>
> Did that help or am I digging a deeper hole? --dawn
Yes, you are. Well, at least you are wrong. The relational model
doesn't force you to "design out" anything. If an ordering is
required, then the relational model requires that you state it
explicitly via an additional attribute, that is all. Attributes with
cardinality > 1 are moved to a separate table by the normalisation
process - again without loss of any information (not even
"meta-information").
Received on Mon Jun 14 2004 - 04:40:31 CDT
