Välj antal / dubbletter

SELECT City, Count(City) As theCount
FROM (Select City, State From tblCityStateZips Group By City, State) As C
GROUP By City
HAVING COUNT Count(City) > 1

Detta skulle returnera alla städer, med antal, som fanns i mer än en stat.

Greenville 39
Greenwood 2
GreenBriar 3
etc.