EASY MySQL solution
\nSELECT sales.product_id, product_name\nFROM product\n    JOIN sales ON product.product_id = sales.product_id\nGROUP BY product_id\nHAVING SUM(sale_date BETWEE
```\nSELECT sales.product_id, product_name\nFROM product\n    JOIN sales ON product.product_id = sales.product_id\nGROUP BY product_id\nHAVING SUM(sale_date BETWEEN \'2019-01-01\' AND \'2019-03-31\') = COUNT(sale_date)\n```\n
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