VLDB is primarily an enterprise class database. Although there is no specific limitation of a VLDB, it can consist of billions of records and have a cumulative size in thousands of gigabytes, or even some hundred terabytes. A VLDB is generally a repository for big data, a transactional processing system or a combination of the two. A VLDB is maintained through standard relational database management system (RDBMS) software and requires capable hardware computing and storage resources. Moreover, a VLDB also requires the underlying system to be capable enough to scale up to address its ever-increasing size.