Backup and recoveryDBAs ensure that critical data is backed up and can be recovered quickly and easily.  

Performance tuningDBAs monitor and optimize the performance of the database by indexing, partitioning, and optimizing SQL queries.  

Data securityDBAs control the security of the database by ensuring only the right people have credentials, removing and adding users, and managing the quotes for a database.  

Database developmentDBAs develop and maintain databases, and establish referential integrity definitions and any constraints that may be required.  

User managementDBAs provide training and support to users.  

Data integrityDBAs maintain data integrity, keeping it available to users and preventing unauthorized access.  

Database monitoringDBAs monitor a database system's performance to determine when action is needed.  

Communication