Re: By The Dawn's Normal Light

> Formal Definition:
> A relation is in first normal form (1NF) if and only if all
underlying
> simple domains contain atomic values only.
>
> Is this definition of 1NF correct or incorrect? And is the criterion
true
> for all relations, or not?
>
> ref: http://nunic.nu.edu/~ckettemb/DBNorm.html

It may be meaningless, and is probably not false.

It could be true because "atomic values" means "values"; and saying "all underlying simple domains contain values" is part of the definition of "domains", although the word "simple" in there is... well, meaningless. At least as it's used.

• erk