A database administrator (short form DBA) is a person responsible for the installation, configuration, upgrade, administration, monitoring and maintenance of databases in an organization.
The role includes the development and design of database strategies, monitoring and improving database performance and capacity, and planning for future expansion requirements. They may also plan, co-ordinate and implement security measures to safeguard the database.
The History of SQL Server and relational databases
Installing and configuring SQL Server
SQL Server data storage management
Managing data with the DTS utility
SQL Server Security management
SQL Server Backup & Recovery more