Chosen direction of development In 1999, when I started Duyan do ourselves a set future direction of development.
There were two directions: network, database technology. Because in 2000, when the network big heat, the market has a CCNP, CCIE certification of people, particularly cattle. So, when I also made a CCNP certification exam, but later found that the web involve a lot of the hardware level, the direction of things, which are too dependent on vendors and individuals to play a little room. And I like to study, so slowly began to turn to specializing in database technology.
In the database and passed in this direction, I began to study in depth knowledge of database theory. At that time, Professor Wang Shan National People's Congress the "Principles of Database Systems Guide" book, I read dozens of times. While studying database theory, I began to contact and in-depth study DB2 and Oracle, and from 1999 began to use the DB2 V5.2. At that time, the market's technical books on the DB2 little, the Internet has not been so well developed. Because my mentor to do a task need to use DB2 database, but I can only rely on random see DB2 documentation to learn. At that time, I also own a part-time, by someone else to do small pieces of software to make money, plus royalties subject to pay for OCP certification and DB2 certification exam fees.
Until now, I always think that certification is a good test motivation. Because the test is not cheap, you do not want to waste the money can only be hard to read. My postgraduate education in 2000 on the adoption of the OCP 8i certification, and later successively through the DB2 V5.2 certification. The certification has greatly enhanced my self-confidence. At the same time, in helping mentor with PB, Delphi and other programming tools to do application development, I have consciously enhance the learning SQL, which I later tuning work is very helpful.
Here I want to say is do a good job for a period of life planning is very important. We must first have a clear direction and planning, then a conscious effort in this direction. Such active learning is much higher than the efficiency of passive learning.
After the first lecture, I have seen the gap between their own and know the only certification is not enough. Customer's many problems, there is no answer books need to do their own work experiences in practice. In addition, the lectures before the lecturers need to be some principles, conceptual things clear, but also the need for a database in-depth study.
Later, IBM training department through a number of channels to know that I can speak DB2 and have relevant certificates, they come to me DB2 series of courses taught. Therefore, since 2001, I have often used as an official lecturer IBM series of all courses taught in DB2. I think of lecturing is a good learning process, because the class before you understand the concept of in-depth study about their own theories of much help. At the same time, the classroom students practical problems will force yourself to do more in-depth study.
I have had this understanding of training: Students listen to you talk for three hours, to much more than 3 hours to see their own book. If the content of a lesson likens a glass of water, then the teacher should at least reserve a bucket of water in advance. So, in lectures, I carefully prepared experiments, in-depth and student exchanges. I have never scripted lectures, but a lot of preparing one's own teaching materials more practical knowledge to extend the teaching materials. At the same time the process of fighting for school use some concepts easy to understand examples to explain. To do this, first of all themselves must have a deep understanding of this concept because as all this in an objective to promote their own learning.
With the increase in the training, some customers began looking for me to do the actual work of tuning. I remember the first time I went for the customer on-site tuning, 2001, to Dalian Morgan Securities lock waiting for problems to solve. Customer's environment using a AIX and CICS. Although the issue was resolved, but his heart is still relatively empty, because AIX and CICS do not know, in case there are problems with these two he had no way to Gaoding; It made me realize the adjustment of a complex system often requires a wide range of knowledge. After this incident, I bought a 140 online, IBM workstations little machine, its installation of AIX and began to learn.
Database Learning Tips
According to my understanding of the database, currently on the market although there are Oracle, DB2, Informix, Sybase, and SQL Server database, but has been IBM acquired Informix database, while the Sybase database technology and the market is moving toward the decline, accounting for the major share of the market is the Oracle, DB2, and SQL Server database. SQL Server database, very good, but unfortunately is only in the Windows platform. So if you in-depth study of SQL Server database, I can only say that the probability of access to lower-paid, but frankly, the use of SQL Sever database majority of enterprises are generally small and medium enterprises. Oracle Database domestic do so many people, if you want to succeed in the Oracle area, extremely difficult. However, the DB2 database, the person doing the contrary, not too much, they are very rare. Moreover, DB2 database, widely used in banking, telecommunications, manufacturing industry, retail industry, the insurance industry and other "high salary" field, so I strongly recommend to learn DB2 database, do a general access to IBM technology, the probability is relatively high salary will be larger. Our time and energy is limited, so must choose the right direction and then try to whom. In addition to SQL Server, these databases I use, I personally feel apart from functions, for stable operation, compared with less stable Oracle optimizer, DB2 is undoubtedly the most stable, and its extremely powerful optimizer. If you can lock in and then have more advanced technology, then DB2 will be perfect.
During this period, while I am learning, while the adoption of all the AIX certification. I remember very clearly that in order to do HA experiment, I spent a lot of work. Because by then Minicomputer was much popularity can not be made into an array 7133. Later, I learned CICS, WebSphere, MQ, and storage. In this way, in my training process, find out which is weak and feels in this direction have a future, I will begin to study. However, the technology when I mainly focus on IBM products. Comparison of training because of his intentions and well received by customers high praise, looking for me to do training in-country training institutions began to change more. During this period of my own skill levels are growing rapidly.
In November 2002, I attended the first "IBM DeveloperWorksLive! China 2002" conference, and access to IBM for the first time in the country selected as "Outstanding software technology expert" Award winners at that time 6 ranked No. 2. This award objectively speaking, the expansion of my client base to play a great help. Come to me more and more people to solve the problem, so I 2002-2003 also became the fastest two-year technological upgrading.
Two years, I gradually learned the HP-UX, WebSphere and MQ, and through certification. My own feeling is that if you research a very deep, very thorough, due to comprehend by analogy's sake, to learn a very easy technology to another door. So, I finished AIX in school to learn a HP-UX, when, feeling very relaxed. Similarly, ORACLE and DB2 after learning to learn Informix is also very easy. Through this vertical and horizontal in-depth comparison of the director of the short variety of products will be very clear, its technology vision is more comprehensive in inadvertently. But also through in-depth on a product, you often can find this product shortcomings and areas for improvement. Take the DB2 for each version of the update of the new features in the new version is not available before I can guess almost the same. This is mainly for three reasons: First, I am close to the real users to understand their real needs; Second, he has been using and continue to sum up thinking; three of these features other databases, but DB2 does not, then the next version will increase the . So, relatively speaking, my own version of the new features of the new study is very relaxed. On DB2 is concerned, I have DB2 V5.2, V7.1, V8.1 and DB2 V9 full certification, and I should be is the first one to DB2 V8 all passed the certification of people, of course, of which there are a coincidence that the composition .
The important point is: the learning process, we must continue to bring practice and theory of integration, know these even know why, so that it will improve much faster.
On-site rescue "is speeding up," Hutchison
2004-2005 is my busy two years, then come to me lectures, training institutions and the need for performance tuning of very large customers, basically the whole day on the air. Training institutions often need to find my lecture a month in advance reservation. Those two years, in addition to the New Year a few days, rest of the time have been doing the training and diagnostics, tuning, toured major cities. I basically six major domestic banks and development centers and data centers to train the designated instructor, and Beijing Bank and Credit Science and Technology, Shandong Agricultural Letter, Guangdong Agricultural letter, Bank of largest concentration of IBP and other projects to do database technology consultant.
At the time I was young, energetic. I remember the most exciting one was in September 2004 of the day, 9:00 to Shanghai Mobile IT departments to do AIX Dynamic Logical Partitioning (DLPAR) training, at the end was 17 points. Immediately after the taxi went to Yangzhou, Yangzhou, arrived at 8:00 p.m. Power Supply Bureau and assist them to carry out electrical load control system project on-line, has been fighting to 3:30. Then, they take a taxi the night went to Shanghai, at 6:00 reach the hotel. Rest for two hours after the 8:00 start time appears in the Shanghai Mobile training site. At that time I do not care about rewards, think carefully mainly the accumulation of technological experience and client resources. In my view, be able to continually grow through practice is the first to make their own meaning. Moreover, to more customers in the scene to deal with the problem will be that much, but more and more find their own inadequacies, and then hard to learn, continue to accumulate, summarize and thinking, into a virtuous circle.
I still miss that part of full, intense and passionate of the golden age. In 2004 and 2005, on the one hand due to the Independent Consultant's personal identity can not be issued invoices; the other hand, projects are bigger and bigger, especially when many banks involved in the database structure and maintenance of the project contract amount is also growing need to the signing of a formal corporate contracts. So I respectively in Shanghai, Beijing registered company. Of course, not all smooth sailing all these years I also made some major mistakes, for example: I have worked in May 1, 2002 to a database of Hainan Meilan Airport transfer die, causing paralysis of the airport flight information management system. Early has also been due to adjustment of certain securities trading system downtime affecting the shareholders, all of our customers had an impact, but these are growing to be the way to go. After these two incidents, I myself thought, summed up a lot in subsequent tuning work, I basically have no mistakes.
My tips: learning, accumulation, planning
In August 2006 I got "2006 China's first Distinguished Database Engineer" title as a way to learn from my many years a summary of the database. Since 2007, I focused on doing some big clients operation and maintenance work, and a corresponding reduction in training times. In 2008, I was China Construction Bank 2.17 million annual salary to hire an experienced technical experts to maintain Oracle and Informix databases. Do it in technological terms, to the power of their own to earn an annual salary of millions of always makes me feel proud, and also let me feel the charm of technology, feel her years of study of technology to be recognized.
The reason why I talk about the technical way the main purpose is to give you some reference, as much as possible to understand the needs of society have developed their own awareness of life planning. I personally think that over the years can achieve this kind of success, hard work, effort and perseverance has always been my most valued. Because of this, if they are not when the opportunity to patronize, you are at a loss.
Now many young people, is precisely the lack of such an ecstasy and obsession, I am familiar with database technology in the field, many young people earlier and earlier to focus on the salaries and positions, this is a very unwise behavior. In fact, often those who would like to forget those who paid with jobs but faster success. "Without some cold biting, Andhra plum smell of incense?" Everyone understand about this kind of reasoning may be able to practice the real person who has not much. Combination of experience and insights my study, I concluded there were 16 word tips: remove the impetuous, conscientiously study and continue to accumulate, to find opportunities.
Finally, I encourage one another with these words: ancient into a big person, not only super-talented world, but also the only firm and indomitable ambition also!
Original Address http://blog.sina.com.cn/s/blog_525394060100fffh.html
Published on: 2010-01-27, modified on: 2010-01-27 11:06 has been here nine times, there have been comments 0 recommend Complaints
