💰 Count Salary Categories | MySQL SQL Query Explained 📊

In this video, we solve the "Count Salary Categories" problem from LeetCode using MySQL. We explain how to classify salaries into categories (Low, Average, High) and count the number of employees in each category, ensuring even missing categories are included using LEFT JOIN.

📌 What You’ll Learn in This Video:
✅ How to use Common Table Expressions (CTEs) in SQL
✅ Classifying data using CASE WHEN
✅ Ensuring all categories appear using LEFT JOIN
✅ Writing optimized SQL queries for real-world applications

🔗 LeetCode Problem: https://leetcode.com/problems/count-salary-categories

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