QUESTION 4 Consider the following relational schema for a company: Customer (CustCode, CustName, CustAdress, Payment_Method) Product (ProductCode, ProductName, UnitPrice, UnitCost) CustomerOrder (OrderNo, CustCode, ProductCode, QtyOrdered) The primary keys are underlined. Write SQL queries to answer the following: (a) Create Customer, Product, and Order tables from the relational schema described above. Select appropriate data types for each attribute. Remember to set the primary and foreign keys. (10 marks) (b) List the Customers Name and address where the addresses contain the word Cork. (3 marks) (c) List the order Number and Net (Price of an item less its cost) profit of each Customer Order. (8 marks) (d) Write the statement to update the unit price of ProductCode S106 by 2. (4 marks)