Oracle Certification gives your more confidence in your knowledge and abilities. Just ask Giovanni Jaramillo!
With nearly 20 years experience under his belt, Giovanni decided to try out certification. Even with all his experience, he found benefit in earning the certification. Read about his experience in his own words below.
I echo Adrienne's comments. I have exactly 20yrs experience as an Oracle Developer but only until 3yrs ago did I decide to get a certification. My first one was the Oracle SQL Expert : OCE (at the time there wasn't the Oracle SQL Associate). So not only did I dive into the pool, I had no choice but to go into the deep-end with the expert exam. After studying for 4 months for it, and passing it on my first attempt it really opened my eyes to how much more vast Oracle SQL is and I immediately felt more confident about the rules of SQL. That confidence built and then the next year I studied again for 4 months and studied "smarter" for the OCA (Oracle Certified PL/SQL Associate) exam. Both exams were hard (SQL Expert was harder).
Now I have one more to take: OCP : Oracle Certified Professional for Advanced PL/SQL. Deciding on either the 11g or 12c exam. But what the certifications have given me is more confidence and also complimentary attributes to my resume, thus allowing me to increase my salary as I am starting to see a few more job postings where it says "Oracle Certification preferred" or "Oracle Certified Professional required".