Question

I would like to count entries (lines) from two tables WHERE (in both) user_id is 12 and club is 5,8,19. I need to receive values (or array it does not matter) for each club, example (5=>24, 8=>78, 19=>56). How can I write this query please?

thank you.

Answer 1

Assume your tables are: user and club.

SELECT c.club_id, COUNT(*)
FROM user u, club c
WHERE u.user_id = 12 
      AND c.club_id IN (5,8,19)
      AND u.club_id = c.club_id
GROUP BY c.club_id