Mysql
SELECT product_id,product_name FROM Product\nLEFT JOIN Sales USING(product_id)\nGROUP BY product_id\nHAVING MIN(sale_date) >= \'2019-01-01\'AND MAX(sale_date) <
SELECT product_id,product_name FROM Product\nLEFT JOIN Sales USING(product_id)\nGROUP BY product_id\nHAVING MIN(sale_date) >= \'2019-01-01\'AND MAX(sale_date) < \'2019-04-01\'\n    \n
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