Re: How long is long enough for primary key ?

Niall Litchfield wrote:
> DA Morgan wrote:

>> Second Normal Form
>> tables do not have composite primary keys

As in my response to Dave:

"Second normal form (2NF) requires that data stored in a table with a composite primary key must not be dependent on only part of the table's primary key"

http://en.wikipedia.org/wiki/Database_normalization#Second_normal_form

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu
(replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org