Question

I want to select users only who submitted a profile picture. I have two tables, users and users_info.

The users table holds basic information about the user

The users_info table holds information which is used in addition to the basic information

I would be able to do this using PHP to grab a bunch of users and only go with those with images, but I’d prefer doing it using a single query. How can i accomplish this?

Answer 1

This should do it:

SELECT u.id
FROM users as u
INNER JOIN users_info as ui
ON u.id = ui.user_id
WHERE profile_image is not null

If you aren’t familiar with joins, I would recommend giving this post a read. It is the best I’ve found for introducing people to the concept.