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

Importing Data into MongoDB

You now know how to get your collection data out of MongoDB and into an easy-to-use format on disk. But say that you have this file on disk, and you want to share it with someone with their own MongoDB database? This situation is where mongoimport comes in handy. As you may have guessed from the name, this command is essentially the reverse of mongoexport, and it is designed to take the output of mongoexport as an input into mongoimport.

However, it is not only data exported from MongoDB that you can use with mongoimport. The command supports JSON, CSV and TSV formats, meaning data extracted from other applications or manually created can still be easily added to the database using mongoimport. By supporting these widespread file formats, the command becomes an all-purpose way to load bulk data into MongoDB.

As with mongoexport, mongoimport operates on a single target collection within the specified database. This means that if you wish to import data...