LeetCode Medium 1988 'Find Cutoff Score for Each School' Interview SQL Question with Explanation

In this video I solve and explain a medium difficulty leetcode SQL question using MySQL query. This question has been asked in Apple, Facebook, Amazon, Google, Adobe, Microsoft, Adobe interviews or what we popularly call FAANG interviews.
I explain the related concept as well. This question includes points to keep in mind to develop SQL queries.

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[saisushanthdurvasulabitsian]

thank you for the video, here is another way using window functions, pls review and let me know your thoughts, thanks
select distinct s.school_id
, ifnull(FIRST_VALUE(e.score)
over (partition by s.school_id
order by e.student_count desc, e.score asc)
, -1) as score
from Schools s
left outer join Exam e on (e.student_count <= s.capacity)