Introduction to MongoDb | MongoDB Tutorial 2025

Mongodb • 27-Mar-2025

by Roxana Haidiner

MongoDb Tutorial

MongoDB is a popular NoSQL (Non-Relational) Database Management System designed to handle large amounts of data efficiently. Unlike traditional relational databases, MongoDB uses a flexible document-oriented model, making it highly scalable and adaptable for various applications.

MongoDB is a document database. It stores data in a type of JSON format called BSON (Binary JSON). A record in MongoDB is a document, which is a data structure composed of key-value pairs, similar to the structure of JSON objects.

Why Use MongoDB?

MongoDB is widely used because of its scalability, flexibility, and performance. Key advantages include:

Schema-less Data Model: Unlike relational databases that require predefined schemas, MongoDB allows dynamic and flexible schemas, making it easier to handle changing data structures.
Horizontal Scalability: MongoDB supports sharding, which enables data distribution across multiple servers to handle large-scale applications.
High Performance: It provides fast read and write operations, making it suitable for real-time applications.
Document-Oriented Storage: Data is stored in JSON-like BSON (Binary JSON) format, making it easy to represent complex hierarchical relationships.
Automatic Failover and Replication: Built-in replica sets ensure data redundancy and high availability.

Core Concepts of MongoDB

MongoDB organizes data in a different way compared to relational databases:

Relational Database (SQL)	MongoDB Equivalent (NoSQL)
Table	Collection
Row	Document
Column	Field
Primary Key	`_id` Field

Collections & Documents

Collections are similar to tables in relational databases, but they do not enforce a strict schema.
Documents are records stored in collections, represented in BSON format (a binary representation of JSON).

How it Works?

Example of a MongoDB document:

{
    "_id": ObjectId("507f1f77bcf86cd799439011"),
    "name": "Albert Enstein",
    "email": "[email protected]",
    "age": 55,
    "address": {
        "street": "123 Main St",
        "city": "New York",
        "zip": "130412"
    }
}

Who Uses MongoDB?

Many major companies rely on MongoDB to handle their large-scale data needs. Some notable companies include:

Facebook - Uses MongoDB for handling social data.
eBay - Utilizes MongoDB for managing product catalogs.
Adobe - Leverages MongoDB for scalable cloud services.
Forbes - Uses MongoDB to power their content management system.
Toyota - Employs MongoDB for real-time vehicle tracking and analytics.

Use Cases of MongoDB

MongoDB is ideal for various applications, including:

Content Management Systems (CMS) - It a software platform that helps users create, manage, and modify content on websites
E-Commerce Platforms
Real-time Analytics
Mobile and Web Applications

Learn MongoDB Together

MongoDB is a powerful NoSQL database that provides flexibility, scalability, and high performance, making it an excellent choice for modern applications. With its document-oriented approach and schema-less structure, it enables developers to work efficiently with dynamic data.

Join me in the Next Lesson where we’ll explore how to install MongoDB and how to create a MongoDB database and collections.

Using a GUI Tool for MongoDB

If you prefer a more visual and intuitive way to explore MongoDB, you can use a GUI tool like DbSchema. It helps you understand your database structure, manage collections, and run queries easily without needing to type commands manually.

DbSchema for MongoDB