In a typical installation, what are the key responsibilities of a database administrator (DBA).

In a typical installation, major responsibilities of a Database Administrator (DBA) are given as follows: Providing the standards and the administration of databases and their use; Database tuning and performance monitoring; Application tuning and performance monitoring; Plan growth and changes (capacity planning); Guiding, reviewing, and approving the design of a new databases; Determining the rules of access to the data and monitoring its security; Ensuring database integrity and availability, and monitoring the necessary activities for reorganization backup and recovery; and Approving the operation of new programs with existing production databases, based on results of testing with test data.