Databaseis the heart of most internet and enterprise applications. The demand for fast application development has brought some extra technical features to the database, broadly termed as NoSQL Database. Mongo DB is a main NoSQL Database and is an open source software. MongoDB is created in C++, Language that gives programmed scaling, high execution and high availability. In MongoDB, NoSQL means versus relational databases and when it get connected the Mongo server is up and start running. The Mongo database will connect to the database by manipulating some data from the database. The main terminology in this technology is to understand the concept of NoSQL and MongoDB versus relational databases. The relational database stores the data in terms of rows and tables. The misalignment application layer objects to tables and rows is called as impedance mismatch.