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A database administrator, frequently known just by the acronym DBA, is a role usually within the Information Technology department, charged with the creation, maintenance, backups, querying, tuning, user rights assignment and security of an organization's databases.
The role requires technical training and expertise in the specific RDBMS used by the organization, in addition to other skills such as analytical thinking and ability to concentrate on tasks, as well as experience working with databases in the real world. The DBA role is a critical member of the IT team.