Introduction to MongoDB

What is MongoDB?

MongoDB is a NoSQL database that uses a flexible schema and is designed for scalability and performance. Unlike traditional relational databases, MongoDB stores data in JSON-like documents with dynamic schemas, allowing for more flexibility in data storage and retrieval.

Key Features

• Document-oriented storage
• Dynamic schema
• Rich query language
• Horizontal scaling
• Support for ad-hoc queries

Installation

Follow these steps to install MongoDB:

1. Download the MongoDB installer from the official website.
2. Run the installer and follow the setup instructions.
3. Add MongoDB to your system's PATH variable.
4. Start the MongoDB server using the command:

   mongod

Basic Commands

Here are some basic commands to interact with MongoDB:

use myDatabase  // Switch to database
db.createCollection("myCollection")  // Create a new collection
db.myCollection.insert({ name: "Alice", age: 30 })  // Insert a document
db.myCollection.find()  // Retrieve documents

Best Practices

To ensure optimal performance, consider the following best practices:

• Design your schema according to your application needs.
• Use indexes to improve query performance.
• Regularly back up your data.
• Monitor performance metrics and optimize accordingly.