1. Write a query to display the author ID, first and last name for all authors that have never written a book with the subject Programming.  Sort the results by author last name. (See the figure below for the output) 2. Write a query to display the book number, title, subject, author last name, and the number of books written by that author. Limit the results to books in the Cloud subject.   Sort the results by book title and then author last name. (See the figure below for the output) 3. Write a query to display the lowest average cost of books within a subject and the highest average cost of books within a subject.

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Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.