Extend the raw data query that retrieves the order date, sales list price (e.g. no discount applied), and category name of the product sold to also include the discount given. This information will be used to generate the top 3 most discounted categories in excel.
The result should look like this:
The expert performance time for this task is 30 seconds. The performance test requires you to write the SQL by hand and assumes you are starting from the query created in task 4.