4. List all customers (last name, first name and zip code) whose zip code is missing (unknown). 5. List the name and phone number of the customer with area code of '678'. 6. We'd like to markdown by 10% the price of the product whose price is greater than or equal to 300. List the ID, category, price, and mark-downed price. Rename the mark- downed price as 'SalePrice'.
4. List all customers (last name, first name and zip code) whose zip code is missing (unknown). 5. List the name and phone number of the customer with area code of '678'. 6. We'd like to markdown by 10% the price of the product whose price is greater than or equal to 300. List the ID, category, price, and mark-downed price. Rename the mark- downed price as 'SalePrice'.
Chapter3: Database Systems, Data Warehouses, And Data Marts
Section: Chapter Questions
Problem 6P
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