> On 1/19/06, Pollard, Mike <mpollard(at)cincom(dot)com> wrote:
>> Martijn van Oosterhout wrote:
>> > Please provides natural keys for any of the following:
>> > - A Person
>> > - A phone call: (from,to,date,time,duration) is not enough
>> > - A physical address
>> > - A phone line: (phone numbers arn't unique over time)
>> > - An internet account: (usernames not unique over time either)
>> Ahh, a challenge. Hmm, not sure about all of them, but here goes:
>> A Person - well, you could use a bit map of their fingerprints, or maybe
>> their retinal scan. Of course, that could change due to serious injury.
>> Maybe some kind of representation of their DNA?
> Unless the person in question happens to be a chimera (yes, they do exist).
Yeah, I saw that episode of CSI! :-)
"Cat's motto: No matter what you've done wrong, always try to make it
look like the dog did it." -- Unknown
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