Question: Give the relational algebra ( not SQL ) expressions for the following queries Show the Customer(s) who did not purchase any item (*Show the Customer_No

 Give the relational algebra (not SQL) expressions for the following queries


  1. Show the Customer(s) who did not purchase any item (*Show the Customer_No only)
  2. Show the name of items purchased by "VIP" Customers
  3. Show the "Wholesale" Customers who have purchased any item on 01-01-2022 (*Show the Customer_No only)
  4. Examine the following relational algebra, and answer the following questions:


Customer_No, L_Name (Customer)


L_Name, Employee_No (Employee)


  1. Why is the relational algebra statement above incorrect?
  2. Rewrite the statement to correct the error. (* you may make an assumption here)

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