Mysql Unique / distinct rows based on two or more columns

Question

I have a table where I have the following columns - lets call location table city, state, zipcode, lat, lng

The problem is that every city and state can multiple zip codes eg

belleuve, wa, 98004 bellevue, wa, 98006

Similarly a city name can be also present in some other state eg

bellevue, TN, 05156

How do I select a distinct city eg Bellevue for each state. Basically the result should show both Bellevue, WA and Bellevue, TN but for WA only one occurance of Bellevue.

Answer 1

Grouping by the city and state should work here:

SELECT City, State
FROM yourTable
GROUP BY City, State;

We also could use DISTINCT :

SELECT DISTINCT City, State
FROM yourTable;