MySQL Simple Clean Solution
Code\n\n# Write your MySQL query statement below\nSELECT sell_date,\n    COUNT(DISTINCT product) AS num_sold,\n    GROUP_CONCAT(DISTINCT product) AS products\nF
# Code\n```\n# Write your MySQL query statement below\nSELECT sell_date,\n    COUNT(DISTINCT product) AS num_sold,\n    GROUP_CONCAT(DISTINCT product) AS products\nFROM Activities\nGROUP BY sell_date\nORDER BY sell_date\n```
['Database', 'MySQL']