![]() ![]() If the primary node fails, an automated election process begins, with one of the secondary nodes being chosen as the new primary node. The modifications made to the primary node are automatically copied to the secondary node, ensuring that identical data is preserved across all servers. These Replica Sets are made up of many MongoDB instances, each with a single primary (master) node and a number of secondary (slave) nodes. Data Replication: MongoDB allows replication through the use of Replica Sets.It also enables multi-document ACID transactions, load balancing, data replication, server-side JavaScript execution, and indexing, among its other features. Another advantage of MongoDB over other popular database applications is that it supports automated failover, queries, and horizontal scaling. ![]() Instead of a table-like relational structure, the platform retrieves data using collections and documents, all without using a primary key, a native feature of RDBMS. MongoDB is licensed under the Server Side Public License (SSPL), which enables a novel technique for storing and retrieving large amounts of data. BSON, for example, has a ‘Date’ Data Type, which in JSON would be represented as a String Type. Also known as BSON (Binary JSON), this format allows you to store data without worrying about the Data Structure, the number of fields, or the types of fields used to store values. MongoDB is a Document-Oriented Database (DODB) that stores data in JSON-like documents with a Dynamic Schema. MongoDB is a well-known open-source NoSQL database that is available and hugely popular among businesses today. ![]()
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