Group_concat
IntuitionActually, I am also new to this. Seen a hint from the discussion section and found out there is group_concat available in sql.Code
# Intuition
<!-- Describe your first thoughts on how to solve this problem. -->
Actually, I am also new to this. Seen a hint from the discussion section and found out there is group_concat available in sql.

# Code
```mysql []
# Write your MySQL query statement below
Select 
    a.sell_date, Count(distinct(a.product)) as num_sold,
    GROUP_CONCAT(DISTINCT a.product order by a.product) as products
From 
    Activities a
GROUP BY 
    sell_date
ORDER BY
    sell_date;
```
['Database', 'MySQL']