MySQL query with DISTINCT keyword

Question

My MySQL table country_phone_codes looks something like this

id     country_code     area_code     name
---------------------------------------------------------         


        

Answer 1

You need to group your country_code also then & then only you will get correct matching results.

SELECT country_code,name
FROM country_phone_codes 
group by country_code
ORDER BY country_code

And we should need to avoid use of Distinct in select clause as it gives performance issues. Instead of that we can use group by