How to filter SQL results in a has-many-through relation

Question

Assuming I have the tables student, club, and student_club:

student {
    id
    name
}
club {
    id
    name
}
stude         


        

Answer 1

SELECT s.*
FROM student s
INNER JOIN student_club sc_soccer ON s.id = sc_soccer.student_id
INNER JOIN student_club sc_baseball ON s.id = sc_baseball.student_id
WHERE 
 sc_baseball.club_id = 50 AND 
 sc_soccer.club_id = 30