NoSQL is designed to scale seamlessly to take advantage of new nodes and is built using low-cost hardware, the So cost shouldn't be a problem. Big Data In today's world, transactions are so frequent that the data generated by these transactions is enormous. It is very difficult to store this huge transactional data in traditional database systems. NoSQL, thanks to its elastic scaling feature, it is possible to increase the size of the database to store a huge amount of transactional data. All the challenges of processing this huge transactional data can be overcome with NoSQL database systems. No DBA required. NoSQL database systems can handle many things on their own. Dedicated database administrators are not required to manage the day-to-day operations of the database. Since these systems have simpler data models, automated repair, etc., no administrator is needed to manage these things. Economy Traditional databases cost more. The amount of space you have when purchasing traditional database systems is less than that of the NoSQL database system. In other words, the cost per gigabyte per second or per transaction per second is several times lower than that of a traditional database management system. Flexible Data Model NoSQL database systems have flexible data models, unlike traditional relational database management systems. If there is a change in the data model in traditional database systems, it may result in a complete breakdown of the database system or the functions may not work as expected. But this is not the case with NoSQL database system. NoSQL has a much more flexible data model that allows the user to add a new column to store data without much hassle. The NoSQL key value virtually stores and documents the database in a data file.