176. Second Highest Salary – SQL Interview Classic! 🔥

In this video, we solve the "Second Highest Salary" problem from LeetCode using MySQL. This is a classic SQL interview question that tests your understanding of ORDER BY, LIMIT, and handling edge cases with NULL.

📌 What You’ll Learn in This Video:
✅ How to fetch the N-th highest value using LIMIT + OFFSET
✅ Using DISTINCT to remove duplicates from result sets
✅ Handling missing data with COALESCE
✅ Writing clean, efficient SQL queries for interviews
✅ Best practices for querying ranked data

🔗 LeetCode Problem:
https://leetcode.com/problems/second-highest-salary

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