Month: December 2018

2018: the year in books – a new record!

Back in 2009 I started posting a summary at the end of the year of what I read during the year (see my posts from 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017) and people have been enjoying it, so here I present the 2018 end-of-year post. I set a moderate goal of 50 books this year but obliterated that and […]

The post 2018: the year in books – a new record! appeared first on Paul S. Randal.

Your Guide to Oracle Database Certification

Have you wished there was a handy guide to help answer all the Oracle Database certification questions you have?  Questions such as:

  • I’ve taken this training, now what certification exam should I take?
  • How do I get started with an Oracle Certification?
  • Which exam is right for me and the job role I have?
  • How can I add skills and a credential that show I can use Oracle Database to Extend to the Oracle Cloud?

If so, check out Your Guide to Oracle Database Certification.   

What You Need to Know Before Taking an Oracle Certification Exam

There are hyperlinks in the guide that will bring you directly to the exam details.  From here you’ll see Exam Preparation which is a must to review before attempting any exam.

  1. Review Exam Topics.
  2. Review Recommended Training.
  3. See Any Noted Additional Preparation and Information:  Find valuable details listed here in addition to reminding test takers that a combination of Oracle training and hands-on experience (attained via labs and/or field experience) provides the best preparation for passing the exam.

Oracle Certified Master – An Unforgettable Journey

Sometimes A Memory Is Not in The Past

My Journey to OCM Certification

by Li Yan

The two-day Oracle Certified Master (OCM) exam is over. I didn’t say “finally” because it’s been an unforgettable journey, and I don’t expect it to end. I don’t want to get overly emotional, but, looking back, there are some things I still can’t forget. I thought that I was going to be walking on air after the exam, but now I feel somewhat empty. It is not because of the mistakes and imperfections in the exam. Life is flawed, so why should we insist on perfection? We need to learn to fail gracefully. No, it’s just that I don’t know where to go after finishing an assignment or getting something done. Is my life just one challenge after another?

I am trying to settle my mind, to condense this experience into words, for those who are learning and preparing for the OCM exam, for those who have passed the exam and also for myself. I won’t be discussing the actual exam here.

The whole story: an exam triggered by a joke

This entire exam was triggered by nothing more than a joke. I once asked Kamus to give me an OCM credential, which I meant as a joke, but it ended up leading to a long series of events. After that joke, I somehow managed to register for the training courses along with a lot of friends, and met Master H, who was said to be shy and introverted. Then I decided to take the exam because I saw my course mates had all registered for it, making me feel that I ought to do it as well. I used to be an unreliable Database Administrator (DBA) and was now a supposedly reliable little leader, so I don’t have the incentives that other people do — for example, the ability to job-hop, earn salary increases or gain respect. As Teacher Gao said to me, “No wonder you are in no hurry to take the exam.” In this sense, the reason that I was taking the courses and the exam was not ambition — even I didn’t know why I did it.

Related:  The Craziest Experience of Zhuang Hui’s Life Provides Good Advice For OCM Exam Preparation

I started feeling the pressure after registering for the OCM exam on June 28. Once I’d registered and paid the money, the pressure was on. As luck would have it, it was my busiest time of year. Our company had adopted a new system, and we could be expected to work overtime on any given day, so it was really not easy to make time for practice. It was true that I had two months to prepare, but time flies, especially when I was so busy every day — I could not believe how fast time went by.

Finally, I was able to ask for some leave, so I could study in the classroom, which was my lifesaver. I worked alongside my classmates, discussing problems, answering questions, helping and motivating each other. I tried to get rid of my nervousness and bring out the best in myself to adjust to the needs of the exam. As far as I could remember, I had never felt nervous in my life until now, so I wondered if there was something wrong with me.

Team: all of you

I am lucky because all along the way I have had a very collaborative team. At my company, my office colleagues are all very supportive, reassuring me that I can ask for leave. In Oracle Workforce Development Program (WDP), we called our exam prep team “Team Fun.” During stressful times, all my teammates had their own ways of making us laugh. We were always chatting and laughing, even outside of Oracle University. Even the teachers were amazed by how much fun we’ve had. We had our “funny duo” of Uncle Yang and Aunt Niu, and our “crazy duo,” the handsome Mr. Xie and the great Mr. Yan. We are classmates, comrades in arms and friends forever.

Related: This Top Oracle Certification Gave Lu Haichao Confidence and Maturity

Thank you: remember forever

I got acquainted with this Oracle-authorized WDP in 2010, when I decided to purchase Oracle’s third-party services. What I saw from them was not just technical proficiency and professional integrity, but a dedication to technology and a readiness to share. After my first conversation with the management team, I knew that it would be a good choice. Over the last few years, I have learned a lot from them and have enjoyed a harmonious atmosphere.

Finally, I want to thank our fellow friends who took the exam on September 5. Your help gave us so much comfort, and we look forward to your perfect Show Time.

“A clear goal, some hard work, a pleasing result, an unforgettable memory.” I am now especially impressed by these words.

I want to say that this memory is not in the past; it is a mark that will remain in my heart forever.

I also want to say to my course mates: it is really nice to know you all.

Start your own Oracle Certified Master Journey.​

*This article was provided and authorized by Oracle Certified Master Union. To reprint, please contact Oracle University and indicate the source.

12c新增并行索引扫描

Oracle在12c之前对于索引范围扫描是没有办法并行执行的,从12.1开始,Oracle可以并行的执行索引扫描。 首先创建测试环境: SQL> create table t_para_ind (id number, name varchar2(30), created date);   Table created.   SQL> insert into t_para_ind select id, object_name, created from t_big;   6735106 rows created.   SQL> commit;   Commit complete.   SQL> create index … Continue reading

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