“Trouvez les 3 meilleurs élèves de la table Math_11a” Réponses codées

Trouvez les 3 meilleurs élèves de la table Math_11a

select concat(first_name," ",last_name) as "top_3_leaders"
        from Students 
               inner join 
             (select student_id, sum(grades) as total from grades
              group by student_id
              order by sum(grades) desc
              limit 3
              ) as t1
where students.student_id = t1.student_id