Re: Lucid statement of the MV vs RM position?

Jon Heggland wrote:
> dawn wrote:
> > Now that SQL-DBMS's include NF2 structures (RVAs + UDTs),
>
> So now user-defined datatypes violate 1NF as well?

Only if they would be in the category of repeating groups or "nonsimple domains" such as list-valued attributes.

> Sheesh. What's the
> reasoning (if any)

lists

> behind that? Or does not the word (UDT) mean what I
> think it means?

It does. I didn't want to equate NF2 with RVAs since my favorite non-1NF structure is still the oft-forbidden list. cheers! --dawn Received on Wed May 03 2006 - 10:37:14 CEST