MySQL ORDER BY total rows of user in another table

Question

Suppose, I want to show a list of users ordering by the most number of messages they have sent.

I have 2 tables: Users and Messages

I h

Answer 1

You can sort using an alias:

SELECT user, COUNT(1) as cnt
FROM Messages 
GROUP BY user 
ORDER BY cnt DESC;

or position:

SELECT user, COUNT(1) as cnt
FROM Messages 
GROUP BY user 
ORDER BY 2 DESC;