MongoDB: The Basics

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MongoDB: The Basics

In this article, we will study what MongoDB is and what a NoSQL Database is as well as an introduction to the world of existing database management systems.

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1. The Objective

In this article, we will study what MongoDB is and what a NoSQL Database is as well as an introduction to the world of existing database management systems. Moreover, we will discuss MongoDB Features — Why MongoDB is used and MongoDB History. In addition, we will see MongoDB applications and MongoDB Installation with some examples.

2. What Is a NoSQL Database?

Before starting, we must know about NoSQL. NoSQL or “Not Only SQL” is a non-structured database. It provides a facility for storage and retrieval of data using fields, while in SQL, the data are stored in a tabular form. Companies are using NoSQL databases in big data and real-time applications. NoSQL offers “eventual consistency” so that it may not meet the real-time application requirements.

3. What Is MongoDB

MongoDB is an open-source platform written in C++ and has a very easy setup environment. It is a cross-platform, document-oriented, and non-structured database. MongoDB provides high performance, high availability, and auto-scaling. It is a NoSQL database and has flexibility with querying and indexing. MongoDB has a very rich query language resulting in high performance.

4. MongoDB Features

Here, we will discuss some key features of MongoDB or why it is useful.

Ad-hoc Queries

MongoDB supports ad-hoc queries by indexing.

Schema-Less Database

It is very flexible than structured databases. There is no need to type mapping.


It is a document-oriented, JSON-like database.


Any document can index with primary and secondary indices.


It has this powerful tool. Every document has one primary node which further has two or more secondary replications.


For efficient usability, MongoDB has an aggregation framework for batch processing.


It has a grid file system that it can use to store files in multiple machines.


For the larger datasets, sharding is the best feature. It distributes larger data to multiple machines.

High Performance

It indexes support faster queries leading to high performance.


MongoDB was developed by a company named MongoDB Inc. formerly known as 10gen based in New York. The MongoDB was founded by Dwight Merriman, Eliot Horowitz, and Kevin Ryan in 2007. This trio was the team behind DoubleClick (now owned by Google).

It was first developed as a platform as a service. It was then introduced in the market as an open source database server in 2009 by MongoDB Inc. The company maintains the server and provides 24×7 email and call support. The first version of MongoDB is v1.4, which was released in March 2010.


In this part, we are going to explore Applications of MongoDB:

  • In E-commerce product catalog
  • Big data
  • Content management
  • Real-time analytics and high-speed logging
  • Maintain Geolocations
  • Maintaining data from the social websites

Environment Setup

MongoDB is available for Windows, Linux, and macOS. You can download the setup directly from the MongoDB website. Download any version after checking the hardware requirements. MongoDB runs by commands in all three major OS. You have to select any folder at the time of installation.

This was all about MongoDB. I hope you liked our explanation.


In this article, we studied what MongoDB is and what a NoSQL database is. In addition, we saw MongoDB features with MongoDB history. At last, we discussed MongoDB applications and environment setup. If you have any queries, feel free to ask in the comments section.

mongodb ,database ,introto mongodb ,mongodb basics

Published at DZone with permission of Shailna Patidar . See the original article here.

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