MongoDB Getting Started

MongoDB Getting Started

What is MongoDB?

MongoDB is a NoSQL, document-oriented database that stores data in JSON-like documents (BSON) instead of tables and rows.
It is designed for high performance, scalability, and flexibility, making it popular for modern web and mobile applications.

Key Features of MongoDB

• Document-based (stores data as documents)

• Schema-less (no fixed structure)

• High performance

• Horizontal scalability (sharding)

• Replication & high availability

• Cloud-ready (MongoDB Atlas)

MongoDB Data Structure

Example document:

Step 1: Install MongoDB

Option 1: Local Installation

1. Download MongoDB Community Server

2. Install and start MongoDB service

3. MongoDB runs on port 27017 by default

Option 2: MongoDB Atlas (Cloud – Recommended)

• Create a free cloud database

• No installation required

• Access from anywhere

Step 2: Start MongoDB Shell

Open terminal or command prompt:

Check databases:

Step 3: Create / Use a Database

(Database is created when data is inserted)

Step 4: Create a Collection & Insert Data

Insert multiple documents:

Step 5: Read Data

Find all records:

Find with condition:

Pretty format:

Step 6: Update Data

Step 7: Delete Data

Delete all:

MongoDB Tools You Should Know

• MongoDB Compass – GUI for database

• MongoDB Atlas – Cloud database

• mongosh – Command-line shell

SQL vs MongoDB (Quick Comparison)

Where MongoDB is Used

• Web applications

• Mobile apps

• IoT applications

• Real-time analytics

• Content management systems