How MongoDB stores data as documents - Try It Yourself

Understanding How MongoDB Stores Data as Documents

📖 Scenario: You are working on a small library system that keeps track of books. Each book has a title, author, and year of publication. You want to store this information in MongoDB, which saves data as documents.

🎯 Goal: Build a simple MongoDB document that represents a book with its details. Learn how to create and structure documents in MongoDB.

📋 What You'll Learn

Create a MongoDB document for a book with exact fields and values

Add a field to the document to specify the genre of the book

Use a MongoDB query to insert the document into a collection

Add a final field to the document to mark if the book is available

💡 Why This Matters

🌍 Real World

MongoDB is often used to store flexible data like user profiles, product catalogs, or content management data where each item can have different fields.

💼 Career

Understanding how to create and manipulate documents in MongoDB is essential for backend developers, data engineers, and anyone working with NoSQL databases.

1

Create the initial book document

Create a MongoDB document called book with these exact fields and values: title set to "The Great Gatsby", author set to "F. Scott Fitzgerald", and year set to 1925.

MongoDB

# Your code here

Need a hint?

Use curly braces {} to create a document and separate fields with commas.

2

Add a genre field to the book document

Add a new field called genre to the book document and set its value to "Classic".

MongoDB

book = {
  "title": "The Great Gatsby",
  "author": "F. Scott Fitzgerald",
  "year": 1925,
  # Add the genre field below
}

Need a hint?

Add the new field inside the curly braces with a comma after the previous field.

3

Insert the book document into the collection

Use the MongoDB command db.books.insertOne(book) to insert the book document into the books collection.

MongoDB

book = {
  "title": "The Great Gatsby",
  "author": "F. Scott Fitzgerald",
  "year": 1925,
  "genre": "Classic"
}

# Insert the book document into the books collection

Need a hint?

Use db.collectionName.insertOne(document) to add a document to a collection.

4

Add availability status to the book document

Add a new field called available to the book document and set its value to true to indicate the book is available.

MongoDB

book = {
  "title": "The Great Gatsby",
  "author": "F. Scott Fitzgerald",
  "year": 1925,
  "genre": "Classic",
  # Add the available field below
}

db.books.insertOne(book)

Need a hint?

Boolean values in MongoDB documents are written as true or false without quotes.