Question

I have this request :

  SELECT id_user
    FROM posts
GROUP BY id_user
ORDER BY COUNT(*) DESC

…which will return the id_user, ordered by their number of occurrence in the posts table.

But along with the id_user information, I would like to keep track of the COUNT(*) and store it somewhere, but I have no idea how to do it.

Answer 1

Use:

  SELECT id_user, 
         COUNT(*) AS numPosts
    FROM posts
GROUP BY id_user
ORDER BY COUNT(*) DESC

The column alias in the example, numPosts, can then be referenced in whatever you’re already using to get the id_user column values.