CIS 336 Week 6 iLab 6 Devry University
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Week 6. L A B S T E P S STEP 1: Back to top Using the BOOK_CUSTOMER table and the NVL function, create a query that will return a list containing the customer number, first name, last name, and the characters ‘NOT REFERRED’ if the customer was not referred by another customer. Give the derived column an alias of REFERRED BY. Do not list any customers that were referred by another customer.
Back to top Using the BOOKS table and the SUBSTR function, create a query that will return a list of book ISBN codes and the book title for all the computer books. Format the ISBN code to display as 9-999-99999-9 (e.g., 1059831198 would display as 1-059-83119-8)
Back to top Using the BOOKS table, create a query using the correct functions to return the category name, the total retail of all books per category with a column alias of "Total Retail", and the average retail of all the books per category with an alias of "Average Retail" for all categories with a total retail greater than $40.00. Format the total retail and average retail columns using the correct function to show dollars and cents with a dollar sign.
Back to top Using the correct tables in your schema, create a query using either join operation you wish that will list the book title and number of authors for all books that have been written by more than one author. Give the title column an alias of "Book Title" and the column showing the number of authors an alias of "Number of Authors". STEP 5: Back to top Using the BOOK_AUTHOR and AUTHOR tables for the upper most query, create a sub query that will return the BOOKID, and the first and last name of the author(s) who have written the book(s) that have been purchased the most.
To successfully accomplish this, you will need to first find out the maximum total number of copies (based on quantity) sold of a book (based on bookid)...