Simple sol with one Subquery
\nSELECT DISTINCT p.product_id, product_name \nFROM Product p \nJOIN Sales s ON s.product_id = p.product_id \nWHERE s.sale_date BETWEEN \'2019-01-01\' AND \'201
```\nSELECT DISTINCT p.product_id, product_name \nFROM Product p \nJOIN Sales s ON s.product_id = p.product_id \nWHERE s.sale_date BETWEEN \'2019-01-01\' AND \'2019-03-31\' \n      AND p.product_id NOT IN (\n                            SELECT product_id \n                            FROM Sales \n                            WHERE sale_date NOT BETWEEN \'2019-01-01\' AND \'2019-03-31\'\n                         );\n```
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