For this assignment, we will be using the following relational schema for our queries. Customer(CID, Name, Address) Orders(Ordernum, CID, Order_date, Cardnum) Orderlist(Ordernum, ISBN, Qty, Ship_date) Book(ISBN, Title, Author, Qty_in_stock, Price) When an order is placed, there is one entry added to Orders which contains the customer information and order details. Then there is one entry per book entered into Orderlist with "NULL" in the ship date which will be replaced once that line item has been shipped. Each book item will only be shipped when all the copies are present (ie: we have sufficient Qty_in_stock for the Qty of the order, that way there is a unique ship_date for each line item). Note: you can also take advantage of renaming (RA) and views (SQL) to break down some of the queries into smaller parts.

Relational Algebra Queries 5. Write a RELATIONAL ALGEBRA query which will list the customer name and book title for the customer who has purchased the most expensive book.

If you write it in SQL, I will downvote. Thank you.