https://github.com/hassanbahati/database-design-applications-project

https://github.com/hassanbahati/database-design-applications-project

Last synced: 26 days ago
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• Host: GitHub
• URL: https://github.com/hassanbahati/database-design-applications-project
• Owner: HassanBahati
• Created: 2022-07-17T13:52:22.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2022-07-21T08:32:54.000Z (over 2 years ago)
• Last Synced: 2024-10-28T09:14:35.944Z (2 months ago)
• Language: Python
• Size: 38.1 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst

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README

        
This is a database of books library.

 

The database contains information about books, their authors, the collections , sales among others.

 

A csv file(books.csv) contains the names of the authors, their nationality, book titles, book collection, rating of the books, among others.

The  enhanced relational diagram of the database shows the relationship between the different entities.

The relational database is comprised of 7 tales.

various table joins can be formulated from tables that contains ids that are intersections between other tables thereby being a joining factor.

The tables include;

    authors table.

   stars table

    collections table

    rating table

    sales table

   

SELECT name FROM books JOIN stars JOIN authors ON stars.book_id=books.id AND stars.author_id=authors.id WHERE books.title LIKE "%Data Scientists at Work%";

SELECT name FROM books JOIN stars JOIN authors ON stars.book_id=books.id AND stars.author_id=authors.id WHERE books.title LIKE "%Data Scientists at Work%" AND authors.name = 'Hawking, Stephen'