column|location_id|not_nullable|number(4)
column|street_address|nullable|varchar2(40)
column|postal_code|nullable|varchar2(12)
column|city|not_nullable|varchar2(30)
column|state_province|nullable|varchar2(25)
column|country_id|nullable|char(2)
pkey|location_id
fkey|country_id|hr.countries.country_id