LeetCode Interview SQL Question with Detailed Explanation | Practice SQL | LeetCode 596

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In this video I solve and explain a 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 is about finding the classes with more than 5 students and also includes points to keep in mind to develop SQL queries. You will also learn about GROUP BY and HAVING clause.

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[pushankarmakar]

in this one i wrote HAVING(class) >=5 and got a solution 100% better than others. why is it so?

[RitzFootball]

nicely explained, just 1 doubt, why we cant use WHERE clause, like 1st time I tried with WHERE clause but its showing some sql syntax error then I tried having clause and it went perfectly well.