Just like human being uses brain to store all the required information, a computer application uses database for the storage purpose. Relational database management system plays a major role for online digital media, financial systems, insurance, health care, and transportation. The amount of data collected and analyzed in enterprises has increased several folds in volume, variety and velocity. Hence a continuous improvement process in Database management systems is inevitable. In this ongoing process, a new class of systems had been designed and implemented, giving rise to the new phenomenon...