"The person responsible for creating, installing, configuring, and maintaining databases. Often the system administrator serves as the database administrator." (Microsoft Corporation, "Microsoft SQL Server 7.0 Data Warehouse Training Kit", 2000)
"An individual responsible for management of an RDBMS. Responsibilities may include user management, indexing, tuning, and backup and recovery." (Christopher Adamson, "Mastering Data Warehouse Aggregates", 2006)
"A person or group of people responsible for the design and supervision of a data base." (S. Sumathi & S. Esakkirajan, "Fundamentals of Relational Database Management Systems", 2007)
"An individual responsible for the installation, configuration, administration, monitoring, and maintenance of the DBMS and its physical databases." (Craig S Mullins, "Database Administration", 2012)
"The person who manages a database. The administrator determines the content, internal structure, and access strategy for a database, defines security and integrity, and monitors performance." (Microsoft, "SQL Server 2012 Glossary", 2012)
"One who is responsible for databases used in the business environment; duties might include performing database updates, tuning database performance, coordinating on server hardware and OS issues, defining backup and restore strategies, and of course, security." (Mike Harwood, "Internet Security: How to Defend Against Attackers on the Web" 2nd Ed., 2015)
"The person (or persons) who has (have) the highest possible privileges inside the Oracle database, responsible for its care and feeding, and accountable if there is a loss or corruption of data. In charge of tasks such as space allocation, overall performance tuning, database security and privilege allocation, and physical database design. Some DBAs also perform dual duty as application developers." (Bill Pribyl & Steven Feuerstein, "Learning Oracle PL/SQL", 2001)
"The organizational function charged with the day-to-day monitoring and care of the databases. The DBA function is more closely associated with physical database design than the DA [Data Administrator] is." (William H Inmon, "Building the Data Warehouse", 2005)
"The person in a software organization who is in charge of designing, creating, and maintaining the databases of an enterprise. The DBA makes use of a variety of software tools provided by a DBMS." (Toby J Teorey, ", Database Modeling and Design" 4th Ed., 2010)
"The IT professional role responsible for database administration, usually in the context of a particular DBMS, hence often prefixed with the name of the DBMS, e.g., Oracle DBA. Functional responsibilities vary based on further definitions." (DAMA International, "The DAMA Dictionary of Data Management", 2011)
"The person responsible for planning, organizing, controlling, and monitoring the centralized and shared corporate database. The DBA is the general manager of the database administration department." (Carlos Coronel et al, "Database Systems: Design, Implementation, and Management" 9th Ed", 2011)
"A person who is responsible for the design, development, operation, maintenance, and use of a database." (Sybase, "Open Server Server-Library/C Reference Manual", 2019)
"A person who has the responsibility for maintaining a database." (Jan L Harrington, "Relational Database Design and Implementation" 3rd Ed., 2009)
