There was a time we only understood the relational database. But with relational database we did not full fill our all types of requirements. Every time relational database is not the best solutions. That’s why different solutions have come. NoSQL is one of them. It is a database management mechanism which does not use relational
Big data is a general term used to describe the exponential growth and the availability of structured and unstructured data. At present big data is very important to business and society. Because day by day data are becoming massive. It is really difficult to handle with the existing database management system. So need alternate way.