Count & List Products by Date | Leetcode Explained | SQL Interview Questions
Welcome to GeekyCodes!
In today’s video, we dive deep into a very interesting SQL Leetcode problem where we group sold products by date, count how many unique ones were sold, and list them in order — all using powerful SQL techniques! 🧠💡
👨💻 Problem Statement:
From the Activities table, for each sell_date, return the number of distinct products sold and a comma-separated list of those products sorted lexicographically.
📊 You’ll Learn:
✅ How to use GROUP BY effectively
✅ Sorting text data inside SQL groups
✅ Concatenating values in SQL
✅ Real-world applications of SQL string functions
🧪 Solved on Leetcode with full explanation!
📌 Perfect for beginners to intermediate SQL learners.
💬 Let me know in the comments: Which SQL concept do you want to learn next?
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