Select first row in each GROUP BY group in mySQL and Laravel?

Question

As the title suggests, I'd like to select the first row of each set of rows grouped with a GROUP BY.

Specifically, if I've got a user_analytics table that looks like this:

SELECT latitude, longitude, country_name, code, COUNT(*) as total_visitors FROM referral_analytics
WHERE created_at BETWEEN '2020-01-03'AND '2021-01-03'
GROUP BY code,country_name,latitude,longitude

My Output:

latitude  | longitude  | country_name              | code| total_visitors
----------+------------+---------------------------+-----+---------------
32.548328 | -92.045235  | United States of America | US  | 1
33.389011 | -111.844017 | United States of America | US  | 1
34.060734 | -118.239738 | United States of America | US  | 1
38.935699 | -77.3508    | United States of America | US  | 1
39.613087 | -104.883926 | United States of America | US  | 1
39.751099 | -104.997101 | United States of America | US  | 1
39.772247 | -86.156517  | United States of America | US  | 1
39.966381 | -83.012772  | United States of America | US  | 4

I'd like to query the first or min latitude and longitude for each group in MySQL/ Laravel query. Something like this:

Expected Output:

latitude  | longitude  | country_name              | code| total_visitors
----------+------------+---------------------------+-----+---------------
32.548328 | -92.045235  | United States of America | US  | 11

Answer 1

Got this -

SELECT MIN(user_latitude) as latitude, MIN(user_longitude) as longitude, user_country_name, user_country_code, COUNT(*) as total_visitors
        FROM referral_analytics
        WHERE created_at BETWEEN '2020-01-03'AND '2021-01-03'
        GROUP BY user_country_code,user_country_name