LeetCode Medium 1532 Interview SQL Question with Detailed 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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[MsPrakhar]

can't we use Group by instead of window function brother?

[maheshwaroli]

with cte as (select customer_id, order_id, order_date,
RANK() OVER(partition by customer_id order by order_date desc) as rnk from ordors),
cte2 as(select customer_id, order_id, order_date from cte where rnk<4)
select name, cte2.customer_id, cte2.order_id, cte2.order_date from costomer join cte2 on
order by name;