Because MongoDB is a document-oriented database, it is easy to access documents by indexing, resulting in a fast query response, almost 100 times than that of relational databases. MongoDB is the most popular choice among NoSql databases, which can be run on-premises or as a managed cloud service. MEAN stands for MongoDB NoSQL database, the Express back-end web application framework, the Angular application platform, and the Node.js JavaScript. Or, if you have developed a web application in the past few years, you might have considered basing it on the MEAN stack. If you are a good web developer, you might have come across NoSQL databases.
