LeetCode Medium 2238 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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[ankit-egbo]

Great explanation...keep it up...more power to you👏

[maheshwaroli]

select driver_id,
case when driver_id in(select passenger_id from Rides)
then count(passenger_id)
else 0
end as cnt
from Rides
group by driver_id;

[mlvprasadofficial]

TIP : CHANGE SNO COLORS OF NUMBER IN THUMNAILS AS (#80) IN WHITE FOR EASY, IN GREEN FOR MEDIUM IN RED FOR HARD, VISUALLY IT WILL BE BETTER (JUST MY OPINION)

[sanskarsuman]

with t1 (select distinct driver_id from rides)
select t1.driver_id, count(r.passenger_id) as cnt from t1 join rides r on t1.driver_id = r.passenger_id
group by driver_id

[AbdulRahman-zpbp]

Bro, please make a python interview problem while explaining logic.

[abhinavmishra]

Hey,
can you please tell the mistake I am committing here :

select driver_id, sum(if(driver_id in (select distinct passenger_id from rides), 1, 0)) as cnt
from rides
group by driver_id