A database management system provides features to protect the data from unauthorized access or modifications.

The user interface of a DBMS provides a way to with the database.

A data dictionary contains information about the of a database system.

A database management system (DBMS) is a software system that allows users to and manage databases.

The data dictionary stores and metadata about table indexes to optimize query performance.

The DBMS user interface allows users to queries to retrieve specific information from the database.

The user interface of a DBMS typically includes and toolbars for easy navigation.