Database Queries and Analysis Exercise
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Questions and Answers

What does the query 'Find the 5 authors with the most copies sold' aim to achieve?

  • Identify the authors who have sold the highest number of copies (correct)
  • Find the average number of copies sold per author
  • Count the total number of copies sold across all authors
  • List all authors and their respective copy sales

    • What is the purpose of the query 'Find the total number of pages written by an author'?

  • Calculate the combined number of pages written by a specific author (correct)
  • Count the total number of pages in all books
  • Find the average number of pages written per author
  • List all authors and their respective number of pages written

    • What does the query 'Find books that have more than 1 author' intend to accomplish?

  • List all books and their respective number of authors
  • Retrieve books co-authored by more than one writer (correct)
  • Find books with only one author
  • Count the total number of books in the database

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