✅[Accepted] Solution for MySQL | Clean & Simple Code
\nSELECT p.product_id, p.product_name\nFROM Product p JOIN Sales s ON p.product_id=s.product_id\nGROUP BY p.product_id\nHAVING MIN(s.sale_date) >= \'2019-01-01\
```\nSELECT p.product_id, p.product_name\nFROM Product p JOIN Sales s ON p.product_id=s.product_id\nGROUP BY p.product_id\nHAVING MIN(s.sale_date) >= \'2019-01-01\' \nAND MAX(s.sale_date) <= \'2019-03-31\';\n```
['MySQL']