🎮 LeetCode SQL: Game Play Analysis IV | Master JOIN, DATEDIFF, and Aggregation!

🚀 SQL Interview Prep – Problem #22 of 50!

In this video, we solve the "Game Play Analysis IV" problem from LeetCode, the 22nd question in our 50 SQL problem series. This problem is perfect for learning how to track user retention and analyze gaming behavior using SQL.

🔍 What This Problem Will Teach You:
✅ Using Common Table Expressions (CTEs) to store first login dates
✅ Calculating user retention rates with DATEDIFF
✅ Writing efficient JOIN queries to analyze user activity
✅ Aggregating data using SUM, COUNT, and ROUND

🔥 Why This Matters:
User retention analysis is crucial in gaming and app development. If you're preparing for SQL interviews or data analyst roles, mastering JOIN operations, date functions, and conditional aggregation will set you apart!

📌 LeetCode Problem Link: https://leetcode.com/problems/game-play-analysis-iv

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