Introduction

In the previous chapters, we have relied primarily on the sample data preloaded into a MongoDB Atlas instance. Unless you are working on a new project, this is generally the way a database will first appear to you. However, when you are hired or moved to a different project with a MongoDB database, it will contain all the data that was created before you started there.

Now, what if you require a local copy of this data to test your applications or queries? It is often not safe or feasible to run queries directly against production databases, so the process of duplicating datasets onto a testing environment is quite common. Similarly, when creating a new project, you may wish to load some sample data or test data into the database. In this chapter, we will examine the procedures for migrating, importing or exporting for an existing MongoDB server and setting up a new database with existing data.

Note

Throughout this chapter, the exercises and activities included...