Book Image

MongoDB Fundamentals

By : Amit Phaltankar, Juned Ahsan, Michael Harrison, Liviu Nedov
Book Image

MongoDB Fundamentals

By: Amit Phaltankar, Juned Ahsan, Michael Harrison, Liviu Nedov

Overview of this book

MongoDB is one of the most popular database technologies for handling large collections of data. This book will help MongoDB beginners develop the knowledge and skills to create databases and process data efficiently. Unlike other MongoDB books, MongoDB Fundamentals dives into cloud computing from the very start – showing you how to get started with Atlas in the first chapter. You will discover how to modify existing data, add new data into a database, and handle complex queries by creating aggregation pipelines. As you progress, you'll learn about the MongoDB replication architecture and configure a simple cluster. You will also get to grips with user authentication, as well as techniques for backing up and restoring data. Finally, you'll perform data visualization using MongoDB Charts. You will work on realistic projects that are presented as bitesize exercises and activities, allowing you to challenge yourself in an enjoyable and attainable way. Many of these mini-projects are based around a movie database case study, while the last chapter acts as a final project where you will use MongoDB to solve a real-world problem based on a bike-sharing app. By the end of this book, you'll have the skills and confidence to process large volumes of data and tackle your own projects using MongoDB.
Table of Contents (15 chapters)
Preface

MongoDB Data Types

You have learned how MongoDB stores JSON-like documents. You have also seen various documents and read the information stored within them and seen how flexible these documents are to store different types of data structures, irrespective of the complexity of your data.

In this section, you will learn about the various data types supported by MongoDB's BSON documents. Using the right data types in your documents is very important as correct data types help you use the database features more effectively, avoid data corruption, and improve data usability. MongoDB supports all the data types from JSON and BSON. Let's look at each in detail, with examples.

Strings

A string is a basic data type used to represent text-based fields in a document. It is a plain sequence of characters. In MongoDB, the string fields are UTF-8 encoded, and thus they support most international characters. The MongoDB drivers for various programming languages convert the string...