Update Products Without Sales(solution-1,2).txt #1
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The GROUP BY in Solution 2 is unnecessary because no aggregate functions are used, and duplicates are unlikely if product.sku and product.product_name are unique. It adds redundant processing, slowing down the query without altering results. Removing it simplifies and optimizes the query:
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The GROUP BY in Solution 2 is unnecessary because no aggregate functions are used, and duplicates are unlikely if product.sku and product.product_name are unique. It adds redundant processing, slowing down the query without altering results. Removing it simplifies and optimizes the query: