🔥 MySQL SQL Challenge | Find Polarized Book Ratings Using Aggregation & CTE | Full Explanation
Автор: Vivek The Analyst
Загружено: 2026-02-12
Просмотров: 38
Описание:
In this video, we solve an advanced MySQL SQL problem where we analyze book reading session data to identify polarized books based on user ratings.
📌 What you’ll learn:
• How to use CTE (WITH clause) in MySQL
• Aggregation with COUNT, SUM, MAX, MIN
• Using CASE WHEN inside aggregation
• Calculating rating spread & polarization score
• Correct use of HAVING vs WHERE
• Avoiding integer division mistakes in SQL
• Writing clean, optimized analytical SQL queries
This video is perfect for:
✔ Data Analyst aspirants
✔ SQL interview preparation
✔ College students learning SQL
✔ Anyone preparing for Data Science roles
💻 Practice this question yourself and improve your SQL problem-solving skills!
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