On Fri, May 22, 2009 at 3:26 PM, Roderick A. Anderson <raand...@cyber-office.net> wrote: > Brandon Metcalf wrote: >> That does help. So, in my example of a table consisting of rows for >> each periodic table element, the atomic number would suffice as a >> unique key since, well, it's unique and not going to change. Right? > > Well you never know. They took planet status away from Pluto. :-)
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