Reading data from a document database (MongoDB)

MongoDB, a NoSQL database, stores data in documents and uses BSON (a JSON-like structure) to store schema-less data. Unlike relational databases, where data is stored in tables that consist of rows and columns, document-oriented databases store data in collections and documents.

A document represents the lowest granular level of data being stored, as rows do in relational databases. A collection, like a table in relational databases, stores documents. Unlike relational databases, a collection can store documents of different schemas and structures.

Getting ready

In this recipe, it is assumed that you have a running instance of MongoDB. To get ready for this recipe, you will need to install the PyMongo Python library to connect to MongoDB.

To install MongoDB using conda, run the following command:

$ conda install -c anaconda pymongo -y

To install MongoDB using pip, run the following command:

$ python -m pip install...