Re: Is the use of VARCHAR(256) as Primary Keys preferred in Oracle?

Karsten Farrell <kfarrell_at_belgariad.com> wrote in news:TmsE9.28$7R4.4522124 @newssvr21.news.prodigy.com:

> Well, it might be different now ... but when I got my SSN (admitedly a
> very long time ago), the first 3 digits indicated what region of the
> country you were in when you applied for one.

http://www.ssa.gov/history/geocard.html

> I know some people who know some people who will, for a small fee,
> produce a "legal" Social Security Card with a unique SSN. Don't know
> where they hijack the numbers from, but it's enuf to fool the
> IRS. All this tells me the SSN is not an arbitrary key.

Another reason why the numbers are not unique, people _stealing_ SSN's

-- 
Pablo Sanchez, High-Performance Database Engineering
http://www.hpdbe.com