Illegal mix of collations error in MySql

Question

Just got this answer from a previous question and it works a treat!

SELECT username, (SUM(rating)/COUNT(*)) as TheAverage, Count(*) as TheCount 
FROM ratings         


        

Answer 1

SELECT  username, AVG(rating) as TheAverage, COUNT(*) as TheCount
FROM    ratings
        WHERE month='Aug'
        AND username COLLATE latin1_general_ci IN
        (
        SELECT  username
        FROM    users
        WHERE   gender = 1
        )
GROUP BY
        username
HAVING
        TheCount > 4
ORDER BY
        TheAverage DESC, TheCount DESC;