Oracle Database Certified Associate (OCA)
The OCA tier was designed to provide for an entry-level DBA certification designation for the Oracle platform. Information Technology professionals with little or no Oracle experience can obtain the knowledge and skills necessary to break into the highly lucrative and challenging Oracle profession. The skills obtained from completing this certification track will allow the candidate to participate on Oracle-related projects acting as junior-level DBAs. Typically, a senior-level DBA will work closely to assign appropriate DBA tasks to strengthen existing skills, and challenge them to learn slightly more advanced procedures.
Oracle Database Certified Professional (OCP)
This certification was designed for mid to senior-level DBAs with one or more years of focused Oracle DBA experience. The knowledge and skills obtained from completing this tier of the certification program prepare the DBA to provide the full assortment of DBA-related tasks - from Database Design and Development to production tasks such as Network configuration, Performance Tuning and Backup & Recovery.
- 1Z0-050 Oracle Database 11g: New Features
Oracle Database Certified Master (OCM)
There is a third tier to the Oracle DBA Certification Track, the OCM. This track is targeted at very senior level DBAs and Oracle consultants. If you have less than 5 years of serious Oracle work experience; and if you have not spent many hours working with and testing advanced Oracle features, you should not even consider this tier as an option.