Code Talk

 MongoDB is a source-available cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas. MongoDB is developed by MongoDB Inc. and licensed under the Server Side Public License (SSPL) which is deemed non-free by several distributions. MongoDB supports field, range query, and regular-expression searches. Fields in a MongoDB document can be indexed with primary and secondary indices or index. MongoDB provides high availability with replica sets. MongoDB scales horizontally using sharding. MongoDB can be used as a file system, called GridFS, with load balancing and data replication features over multiple machines for storing files. MongoDB provides three ways to perform aggregation: the aggregation pipeline, the map-reduce function, and single-purpose aggregation methods. MongoDB supports fixed-size collections called capped collections.  MongoDB claims to support multi-document ACID transacti...