Question

I have come up with another question.I am trying to devise a MySql query.

I have a Users table and a Ratings table with user_id as a foreign key in ratings table.

Now I have to get the user who has maximum average ratings

So I did:

SELECT blah blah FROM Users USR
INNER JOIN Ratings RTN on USR.id = RTN.user_id
order by avg(RTN.rating)

But i feel this is wrong and its also not working either.Is there a way to get users ordered by average ratings they received in a descending order?

Regards
Himanshu Sharma.

Answer 1

Your query doesn’t seem very wrong actually (as a start), I would write it like this:

SELECT USR.id, AVG(RTN.rating) AS avg_rating
FROM Users USR
INNER JOIN Ratings RTN ON USR.id = RTN.user_id
GROUP BY USR.id
ORDER BY avg_rating DESC
LIMIT 1