A User-Accessible Catalog. It encompasses every person on earth, whether they realize it or not. One of the systems at the heart of current data management is different database management system. Situations 1.
Financial services organizations rely on important trade and market data, retail business rely on consumer and market data, and military organizations are concerned with classified and national security-sensitive data.
It includes security features that control how a database is accessed and used. People, companies, even the government analyze the data they collect and analyze it with the hope of discovering new information.
Database Management System DBMS is a collection of interrelated data database and set of programs to access and modify those data. It is able to process data of size petabytes with help of its Map Reduce Programming model and Hadoop distributed File System.
I have broadly classified recent research into three categories: hardware based, software based and cluster based database designs. In addition, data may need to be encrypted to ensure additional protection.