MongoDB (though a NoSQL database)

MongoDB is a flexible, document-oriented NoSQL database that stores data in JSON-like structures called documents. Unlike traditional databases that use tables and rows, MongoDB organizes information into collections of documents, making it easy to handle complex, evolving data. This approach allows for quick, scalable storage and retrieval, especially suitable for applications with dynamic or unstructured data. MongoDB is widely used in modern software development for its performance, flexibility, and ease of managing large, varied datasets without the constraints of rigid schemas.