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Hey Guys!! Welcome back to Data Couple! Today, we're solving a real interview question that's been asked at MAANG companies ...

In this video, I break down a real FAANG-style SQL interview trap where COUNT() looks correct but produces wrong results.

Question Link : https://leetcode.com/problems/number-of-unique-subjects-taught-by-each-teacher/?

In this video, we solve Leetcode 176 - Second Highest Salary (FAANG SQL Interview Question) using SQL. We will explore and ...