Gwrite a select statement that answers this question: what is the total amount ordered for each product? return these columns: the product_name column from the products table the total amount for each product in the order_items table (hint: you can calculate the total amount by subtracting the discount amount from the item price and then multiplying it by the quantity) use the with rollup operator to include a row that gives the grand total. note: once you add the with rollup operator, you may need to use mysql workbench’s execute sql script button