This material is adapted from Craig S. Mullins' Database Administration: The Complete Guide to Practices and Procedures, Addison Wesley Professional; ISBN: 0201741296.
There are DBAs who focus on logical design and DBAs who focus on physical design; DBAs who specialize in building systems and DBAs who specialize in maintaining and tuning systems; specialty DBAs and general-purpose DBAs. Truly, the job of DBA encompasses many roles. Some organizations choose to split DBA responsibilities into separate jobs. Of course, this occurs most frequently in larger organizations, because smaller organizations often cannot afford the luxury of having multiple, specialty DBAs.
Still, other companies simply hire DBAs to perform all of the tasks required to design, create, document, tune and maintain the organization’s data, databases, and database management systems. Let’s look at some of the more common types of DBA.
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