The first course was 'Database Theory' led by Dr. A few years on at University, I embarked upon and passed two courses on databases, and enjoyed both of them very much. What did I know before starting preparation?Īt school in 10th grade, I sat a DMBS course, however, besides physically being present on the course, there is little I remember in terms of gaining an understanding for DMBS. To conclude, the main reasons for obtaining the Oracle Database Certification were to gain confidence in my own knowledge and a certification badge that can now be displayed and used to great advantage. Hypothetically, it should characterize you as a person who can set your own goals, and show dedication through your ability to plan, prepare by process a large amount of information whilst developing a firm understanding of the course content at depth. It was then, that it became clear to me that when taking tests, I can involuntarily take pity on myself and forgive my shortcomings, but the real exam will not allow for such flaws in my understanding and the certification is a fairly objective measure of knowledge.įurthermore, you can show the certification to your current employer or use it as an additional credential for future employment. I began to ask myself if I could read a book and practice detailed test questions, then why do I need to pass an official certification? As an additional motivation. This would entail reading and re-reading everything in great depth, which as you can imagine, was extremely time consuming. However, it became apparent that when preparing for certifications I would be required to complete tests on almost every detail of the book.

I decided that simply reading a book about SQL was not enough as without real practice it would be easy to assume that I have a firm understanding of everything I have read. I also wanted to know what level of understanding the database vendor itself, in this case, Oracle, expects from developers. The main reason was my desire to streamline the knowledge that I had acquired throughout my years of study and work and fill in all the gaps. Why did I decide to prepare for the exam? Because of this I decided to write a complete guide in order to help others who are interested in this certification to help them save time and successfully pass what I consider to be a pretty hard exam. When I started preparing for OCA Oracle Database SQL (1Z0-071) I didn’t find any materials on Habr about this matter and found there to be limited information available on the Internet. When I was preparing for Java 8 OCA and OCP I found a lot of useful articles about subjects on Habr that helped me to choose the optimal path and save a considerable amount of time.

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