Traditionally, IT companies were dependent on Relational Database Management Systems (RDBMSs) for storing their application data. A huge amount of data is being stored every day in databases, which are usually structured in nature. In the past, RDBMS were the default choice for client-server applications so that applications could store data by following the Atomic, Consistent, Isolated, and Durable (ACID) property. RDBMS follows the ACID properties for database transactions. Looking at today's application needs, the speed and nature of data is changing over time. So, to support the unstructured or dynamic data, RDBMS needs to be cost effective, reliable, durable, and scalable. RDBMS also needs to maintain the relationships between tables and overheads of joins for Create, Retrieve, Update, and Delete (CRUD) operations. So, to handle those challenges, Not Only SQL (NoSQL) came in to the picture. NoSQL can handle unstructured data efficiently...