About MongoDB

MongoDB is a document-oriented NoSQL database created by 10gen (now MongoDB Inc.) in 2009. The name comes from "humongous." MongoDB stores data in BSON documents (binary JSON), enabling complex nested structures without a rigid schema.

MongoDB is used by eBay, Forbes, Adobe, SAP, Cisco, and EA Games. eBay processes billions of operations in MongoDB. Forbes stores article content and metadata. EA Games uses MongoDB for game analytics and user profiles.

MongoDB flexible schema is ideal for fast-changing projects — new fields can be added without migrations. Aggregation Pipeline enables complex analytics at the database level. Change Streams provide reactive updates when documents change.

MongoDB Atlas is a cloud platform with automatic scaling, replication, and backups. Sharding distributes data across servers for horizontal scaling. Mongoose is a popular ODM library for Node.js with schema validation and document relations.