Select count / duplicates

Question

I have a table with all U.S. zip codes. each row contains the city and state name for the zip code. I\'m trying to get a list of cities that show up in multiple states. This

Answer 1

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

This would return all cities, with count, that were contained in more than one state.

Greenville 39
Greenwood 2
GreenBriar 3
etc.

Answer 2

First group on state and city, then group the result on city:

select City
from (
  select State, City
  from ZipCode
  group by State, City
) x
group by City
having count(*) > 1

Answer 3

You probably should have created a separate table for zip codes then to avoid the duplication.

You want to look into the GROUP BY Aggregate.

Answer 4

Try using a select distinct

SELECT DISTINCT city, state FROM table GROUP BY city

Answer 5

Will this do the trick

Select CityName, Count (Distinct State) as StateCount
From CityStateTable
Group by CityName
HAVING Count (Distinct State) > 1