On Thu, Jan 23, 2003 at 07:53:18AM -0600, Bruno Wolff III wrote:
> On Wed, Jan 22, 2003 at 14:18:47 -0800,
> Dennis Gearon <gearond@cvc.net> wrote:
> > Are there any sites with 'standard schemas' for certain, repetitive database needs? For
> > example, addresses and their components. Does anyone have a schema for addresses that will
> > work for the USA *AND* internation addresses?
> >
> > entities
> > ----------
> > Countries
> > States
> > Counties
> > Cities
> > street addresess.
> > Postal Codes
> >
> > Some rules:
> > -------------
> > A/ Do duplicate countries
> > B/ No duplicate states in Countries
> > (states seem only to exist in 'Federal' governments)
> > C/ No duplicate postal codes in Countries
> > D/ Duplicate cities are allowed in Countries,
> > and in the world.
> > E/ Duplicate cities are allowed in States.
but no duplicate cities per county. (right?)
> > F/ Cities can have multiple postal codes
> > G/ Postal codes are assigned to only one city.
maybe not. double-check that.
> > H/ Postal codes are assigned to counties.
for sparsely-populate counties i'd bet that one zip code can
cover a lot of area, maybe even crossing county boundaries.
> The post office has information on US addresses. They are more
> complicated than you might think. Puerto Rico especially.
> Note that 5 digit zip codes can span states.
really? that's just plain mean. (at least it backs up the
cross-county theory i whipped up, above.)
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