background
It has been nearly a month since I got the certificate, and I have always wanted to write a summary of my OCP exam. But because of various laziness/excuses failed to materialize. Scribble a few words today.
Since the author used to engage in embedded C language, it is not available in the new unit. So I started to learn ORACLE database in a different way, and I have been self-study for more than a year. I learned from my self-study that ORACLE's certification seems to have a lot of gold, so I wanted to get a certificate, after all, Yiduo doesn't push himself.
Although cloud-native databases/distributed databases are relatively hot now, ORACLE, as the leader of traditional databases, still occupies a large market share. It is also said that those companies that do not use ORACLE are not because ORACLE is not good, but because it is too good (too expensive) to use.
There is not a lot of nonsense, just go directly to the test preparation process;
Preparation
My preparation for the exam is basically self-study. I download all the official documents from 11g, 12c to 19c, and read and practice. Fully understand ORACLE's knowledge system. The main learning points are:
ORACLE database concept,
Corresponding to the official document "database-concepts"
This article should be the first document of ORACLE entry, explaining relational database concepts (tables, indexes, triggers, views, etc.), SQL and PL/SQL syntax, ORACLE architecture (storage architecture-including logical storage/physical storage, instance architecture) —Including memory architecture/process architecture/network architecture), etc.; in addition, it is also necessary to focus on understanding the multi-tenant architecture features introduced in 12c.
This article also provides a macro guide on how to learn official documents, as follows:
Concept-----2 day 系列-----guide系列Database management
With the foundation of the concept, you can have a more comprehensive understanding of the characteristics of oracle by studying the "Administrator's Guide" . This includes ORACLE's scheduler, resource control, etc.;
ORACLE network service
Corresponding to the official document "net-services-administrators-guide"
Focus on learning ORACLE network architecture, various connection methods, shared service mode and dedicated mode;
SQL、PL/SQL
Corresponding to the official documents "SQL Language Reference", "PLSQL Packages and Types Reference"
Explain the syntax of ORACLE SQL and various PL/SQL packages
Backup and restore
Corresponding to the official document "Backup and Recovery User's Guide"
Introduce various backup and recovery scenarios of ORACLE in detail, and students need to have a deep understanding of the use of RMAN.
other
ASM: Oracle automatic storage management
Tuning: apply for SQL tuning, instance tuning (various memory settings, parameter settings, etc.)
examination
ORACLE certification exams are divided into:
OCA----OCP-----OCM/OCEOCA is a basic certification and can be taken directly. The subsequent certification requires training records (starting in 2019, OCP no longer needs training records) . The author applied for the 12c OCP, a total of three exams are required:
- 1z0-062: database management
- 1z0-063: Advanced database management
- 1z0-071：SQL
062 and 071 are OCA (there is SQL OCA after 071), and the test centers are mainly in the documents mentioned above. I have to mention the question bank here. Due to the need for training records, it needs to be declared through the training organization. Therefore, often candidates can get the question bank of the training institution. But the author must emphasize here:
a. Don't memorize the question bank, be sure to verify and understand the principle, getting proof is not the goal, learning knowledge is the key. I hung up once because of carelessness 062;
b. Learn the whole picture of ORACLE from the question bank.
The OCP exam is very comprehensive, covering almost all the features of ORACLE (except for the advanced features of GI, RAC, and DG). Therefore, we must learn to understand the whole picture of ORACLE according to the question bank. In addition, if readers need it, they can contact me to inquire about ORACLE certification questions in detail, and we can also analyze the answers to the question bank for you. Specifically, you can shoot the following Taobao connection.
ORACLE certification question bank and technical services
to sum up
- The ORACLE knowledge system is indeed huge. The author's Xiaocai is fortunate to get the certification does not mean that the OCP is good. If readers intend to obtain certification, they still have to prepare for certification.
- OCP certification should only be the starting point for ORACLE certification. In actual enterprise applications, it is often RAC architecture, DG disaster recovery, and OGG and other replication technologies , which are very complicated.
Attached with certified pictures and Taobao question bank:
