On 1/21/06, Christopher Browne <[EMAIL PROTECTED]> wrote: > > On 1/19/06, Pollard, Mike <[EMAIL PROTECTED]> 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! :-)
Heh. I didn't realize they did that already. I was thinking of the show "I Am My Own Twin" from the Discovery Health Channel. Couldn't find a link from the official page, but: http://www.globalspin.com/mt/archives/000547.html . > -- > "cbbrowne","@","gmail.com" > http://linuxdatabases.info/info/lsf.html > "Cat's motto: No matter what you've done wrong, always try to make it > look like the dog did it." -- Unknown > > ---------------------------(end of broadcast)--------------------------- > TIP 6: explain analyze is your friend > -- Mike Rylander [EMAIL PROTECTED] GPLS -- PINES Development Database Developer http://open-ils.org ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend