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SQL Puzzle: GROUP BY vs Window Function — Real-World Solution Explained

SQL Puzzle: GROUP BY vs Window Function — Real-World Solution Explained

🎯 Struggling to decide between GROUP BY and WINDOW FUNCTIONS in SQL? In this video, we tackle a real-world SQL problem that exposes the common mistakes many make when relying solely on GROUP BY. You'll learn why GROUP BY alone isn’t enough in certain scenarios, and how WINDOW FUNCTIONS provide a more elegant and flexible solution. 👉 We ...

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