Oracle Database certification exams can be taken online or in class at Oracle University. They will help you become more productive and more efficient in different aspects of database management. To become a certified Oracle DBA, you must complete the requirements for each certification track and pass appropriate exams.
These requirements typically include instructor-led courses, examinations, and hands-on courses. Each course covers a specific sub-field of the Oracle System. There are currently six certification levels available for Oracle DBAs. These are Junior Associate, Associate, Specialist, Professional, Expert, and Master.