What is MongoDB?

MongoDB is a popular open-source document-oriented database program. Classified as a NoSQL database, MongoDB uses JSON-like documents with optional schemas.

Key Features of MongoDB

• Document-oriented storage
• High performance
• High availability
• Easy scalability
• Rich query language

When to Use MongoDB

MongoDB is ideal for:

• Applications with rapidly changing data requirements
• Projects that need horizontal scalability
• Systems that handle large volumes of unstructured data
• Real-time analytics and high-speed logging

Basic Concepts

1. Document

A document is the basic unit of data in MongoDB. It's similar to a row in a relational database but more flexible.

2. Collection

A collection is a group of documents, analogous to a table in relational databases.