Oracle Database enables users to store data, update it, and efficiently retrieve it, with a high degree of…

is an Object Oriented (OO) database with object and Extensible Markup Language (XML) capabilities. In a OO database, all data is stored in multidimensional tables that are composed of rows and columns.

Control Structures parse and execute SQL statements, and retrieve and return results to the user or application.

Server Processes (such as the control file and online redo log files) ensure the integrity, availability, and recoverability of user data.

contains user data, metadata, and control structures. Metadata, or data about the data, is the collection of information on disk that permits Oracle software to manage user data.

Administrator (DBA) is the sole person who manages Oracle. In large, enterprise environments, the job cannot be divided among several DBAs, because only one person must take care of everything.