One more. Write a SQL statement that retrieves all product names (prod_name) from the Products table, along with a calculated named quant_sold containing the total number of this item sold (retrieved using a subquery and a SUM(quantity) on the OrderItems table).

SELECT prod_name,
       (SELECT Sum(quantity)
        FROM OrderItems
        WHERE Products.prod_id=OrderItems.prod_id) AS quant_sold
FROM Products;

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