simple ERD for a bookstore database that includes the following entities:
Book
Author
Publisher
Define the appropriate relatioships between the entities
The ERD for the bookstore database with the entities Book, Author, and Publisher is as follows:
Entities:
- Book (book_id, title, genre, publisher_id, author_id)
- Author (author_id, name, birthdate)
- Publisher (publisher_id, name, location)
Relationships:
- One-to-Many relationship between Book and Author:
- One book can have multiple authors (e.g., co-authored books)
- One author can have written multiple books
- One-to-Many relationship between Book and Publisher:
- One publisher can publish multiple books
- One book can only be published by one publisher