Question

I have a database table with a users id and shoe.

For each shoe a user gets an row in the db so a person with the id 5 might have 50 entries, a user id of 3 might have 23 entries and so on.

Im wondering how i would display the top 10 user ids based on the amount of shoes they have in the db?

Answer 1

Your SQL code should resemble this:

SELECT user_id, COUNT(user_id) AS num_shoes FROM shoes GROUP BY user_id ORDER BY num_shoes DESC LIMIT 10

The key is the GROUP BY instruction, it tells MySQL to roll all the same user ID’s into one entity.