👉🏻EASY TO UNDERSTAND SOLUTION || FAST || COUNT() || GROUP_CONCAT() || MySQL
IntuitionApproachComplexity
Time complexity:

Space complexity:
Code
# Intuition
<!-- Describe your first thoughts on how to solve this problem. -->

# Approach
<!-- Describe your approach to solving the problem. -->

# Complexity
- Time complexity:
<!-- Add your time complexity here, e.g. $$O(n)$$ -->

- Space complexity:
<!-- Add your space complexity here, e.g. $$O(n)$$ -->

# Code
```mysql []
SELECT sell_date, COUNT(DISTINCT product) AS num_sold, GROUP_CONCAT(DISTINCT product ORDER BY product ASC separator ',') AS products
FROM Activities
GROUP BY sell_date
ORDER BY sell_date ASC;
```
['MySQL']