Re: Enforced Costraints (sic) ??

Interesting reference. Based on the contents of this reference, you should not use SSN for a primary key unless you work for the IRS or a state/county/city taxing authority. The SSA is arguing that use of SSN should be restricted to taxing authorities and banned from use by other government authorities (such as state driver license bureaux) and commercial organizations. I applaud the intent of the SSA, by seriously doubt that this can be accomplished. Its use is very much embedded in US society today.

Marc Perkowitz

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Tuesday, June 12, 2001 11:41 AM

> SSN's are not recycled.
>
> From the SSA OIG's testimony on SSN use and misuse before congress -
>
> "The SSN is a unique identifier"
>
> http://www.ssa.gov/oig/Testimony05222001.htm
>
> SSN is a perfectly good PK for personnel systems. If you find duplicates
> your employer certainly needs to know about it.
>
> I once had a personnel database with 25 years of personnel data (about
> 1,200,000 individuals). When we loaded it into Oracle with the SSN as
PK,
> there was one duplicate SSN. Of course, that employer was very
> conscientious about requiring a valid SSN.
>
>
>
>
>

>
>
>
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Marc Perkowitz
  INET: mperkowitz_at_twjconsulting.com

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