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Introduction to SQL

bookChallenge: Changing the Books Structure

Your manager has decided that the books_table table should have an auto-incrementing book_id to uniquely identify each book. Additionally, the book_id will be set as the primary key for the table.

Task

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You are tasked with recreating the books_table table with the following columns:

  • book_id - The unique id of the book (SERIAL), PRIMARY KEY;
  • title - The title of the book (VARCHAR, max-length 255), NOT NULL;
  • author - The author of the book (VARCHAR, max-length 100);
  • genre - The genre/category of the book (VARCHAR, max-length 50);
  • published_year - The year the book was published (INTEGER);
  • isbn - The International Standard Book Number (VARCHAR, max-length 20);
  • publisher - The publisher of the book (VARCHAR of max-length 100);
  • pages - The number of pages in the book (INTEGER);
  • language - The language of the book (VARCHAR of max-length 50);
  • is_available - Whether the book is available for lending (BOOLEAN);

Solution

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SectionΒ 4. ChapterΒ 10
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bookChallenge: Changing the Books Structure

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Your manager has decided that the books_table table should have an auto-incrementing book_id to uniquely identify each book. Additionally, the book_id will be set as the primary key for the table.

Task

Swipe to start coding

You are tasked with recreating the books_table table with the following columns:

  • book_id - The unique id of the book (SERIAL), PRIMARY KEY;
  • title - The title of the book (VARCHAR, max-length 255), NOT NULL;
  • author - The author of the book (VARCHAR, max-length 100);
  • genre - The genre/category of the book (VARCHAR, max-length 50);
  • published_year - The year the book was published (INTEGER);
  • isbn - The International Standard Book Number (VARCHAR, max-length 20);
  • publisher - The publisher of the book (VARCHAR of max-length 100);
  • pages - The number of pages in the book (INTEGER);
  • language - The language of the book (VARCHAR of max-length 50);
  • is_available - Whether the book is available for lending (BOOLEAN);

Solution

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Everything was clear?

How can we improve it?

Thanks for your feedback!

close

Awesome!

Completion rate improved to 1.72
SectionΒ 4. ChapterΒ 10
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