A sales manager wants to see how much each product contributes to total revenue: SELECT product_id, SUM(sales) AS product_sales, SUM(sales) OVER () AS total_sales FROM sales GROUP BY product_id; What does the total_sales column represent? OPTIONS:A. The total sales for each product onlyB. The total sales across all products, repeated for every rowC. The maximum sales of any productD. The running total of product sales in descending order ANSWER:B EXPLANATION:The empty OVER() applies the sum across the entire dataset, repeating the same total for each product.
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What does polyphyletic mean? Which group of eukaryotes is polyphyletic?
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What source do microbiologists use to find biochemical characteristics of bacteria?
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Question Set 4 Ensemble Learning
Question Set 4 Ensemble Learning
What is the gravitational force acting on a 59-kg person due…
What is the gravitational force acting on a 59-kg person due to another 59-kg person standing 2.0 m away?