Introduction to MongoDB MongoDB is a NoSQL document-oriented database system. It is a highly scalable, flexible, and fast database system that provides high performance, high availability, and automatic scaling. MongoDB is an open-source database system that stores data in a JSON-like format, which allows it to work with a wide range of applications and programming languages. Features of MongoDB Document-oriented storage: MongoDB stores data in flexible, JSON-like documents, meaning fields can vary from document to document and data structure can be changed over time. Ad hoc queries: MongoDB supports ad hoc queries by indexing data and providing query optimization capabilities to support fast queries. Indexing: MongoDB can create indexes to improve the performance of queries and reduce the time needed to retrieve data. Replication: MongoDB provides high availability by replicating data across multiple servers. Sharding: MongoDB provides horizontal scaling by sharding data across ...