Calculating a Shopper's Total Number of Orders Another commonly used statistic in reports is the total number of orders a shopper has placed. Follow these steps to create a function named NUM_PURCH_SF that accepts a shopper ID and returns a shopper's total number of orders. Use the function in a SELECT statement to display the number of orders for shopper 23. 1. Develop and run a CREATE FUNCTION statement to create the NUM_PURCH_SF function. The function code needs to tally the number of orders (using an Oracle built-in function) by shopper. Keep in mind that the ORDERPLACED column contains a 1 if an order has been placed. 2. Create a SELECT query by using the NUM_PURCH_SF function on the IDSHOPPER column of the BB_SHOPPER table. Be sure to select only shopper 23. Q2: Identifying the Weekday for an Order Date The day of the week that baskets are created is often analyzed to determine consumershopping patterns. Create a function named DAY_ORD_SF that accepts an order date and returns the weekday. Use the function in a SELECT statement to display each basket ID and the weekday the order was created. Write a second SELECT statement, using this function to display

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