Aiti Tribe Stories (7): Meet 51CTO and aim high

[51CTO.com original article] The protagonist of this issue, Pengcheng, is a young man with a strong interest in new knowledge. He likes to read books and learn IT technology, and often participates in various training activities to enrich himself. In his words, he never stops learning.

Pengcheng·Oracle Database Development

Focus on the backend field and learn while working

Pengcheng graduated in 2011 and his first job was doing operation and maintenance in the CDN department of Sohu Video. He was recommended to do an internship by his teacher, whose former student worked in the HR department of Sohu Video. Although he was lucky enough to enter Sohu, he knew little about operation and maintenance as a newcomer to the workplace. It was difficult for him to complete the tasks assigned by his leader, so Pengcheng made up his mind to learn, starting with the Linux platform involved in his work.

At that time, Pengcheng bought the book "Basic Learning of Linux Private Recipes by Bird Brother" and learned some simple Linux operation and maintenance through the knowledge in Bird Brother's book. However, he found that he was always uncomfortable when writing shells and arranging monitoring programs. It turned out that he learned the knowledge from books and rarely practiced it. In order to get started as soon as possible, he humbly asked for advice, followed his leader to write one word at a time, and wrote one script at a time, and finally achieved some success in Linux.

Pengcheng was particularly impressed by the file permission issue. He never understood it. Whenever there was a permission issue, he always granted 777 permissions. However, once, there were permissions with s and t in the file query. He panicked and went to ask his leader for advice. After learning about it, the leader scolded him and then explained to him in detail the rwx attribute and the special permissions SUID, SGID, and SBIT. In combination with practice, Pengcheng also reread the permission section of Bird Brother's book Linux Basics, and finally understood the meaning of permissions. After this "accident", Pengcheng sorted out some Linux experience. He knew that as long as he thoroughly understood the book and knew how to use it, Linux would not be a hindrance to his work!

Get to know 51CTO and learn more about Oracle database development

Pengcheng became a dad in 2012. He worked during the day and made milk powder, washed diapers, and turned his baby over at night. He was very tired, but he had a strong belief in learning and took two hours every day to recharge himself. So he searched for various online learning documents and videos and accidentally discovered 51CTO. Although he started dealing with 51CTO during college in 2010, it was not until 2012 that Pengcheng registered on this website called 51CTO and became a defender of Linux and Oracle databases. So the name "Li Pengcheng on CTO" appeared on the 51CTO website.

Since the salary for Linux operation and maintenance was too low, Pengcheng began to attack Oracle database development. The scope of Oracle was a big challenge for Pengcheng. After all, he had only learned the basics of database in college, but he knew nothing about practical application. At that time, he faced a difficult choice: should he continue to do Linux operation and maintenance in the new company? Or should he learn Oracle knowledge in the original company and get a salary increase? In the end, Pengcheng chose the latter. He also spent too much time and energy on this, learning through online training videos, official manuals, and powerful Baidu and Google. At that time, he thought he had learned SQL statements, and simply executed a delete, but committed it directly. The consequences were serious. He found that the data was missing. In a panic, he directly turned off the power of the server, creating the illusion that the power outage caused the data loss. However, his leader found out the next day. After a criticism, the leader taught him a simple flashback query, select as of, which could solve the problem. He suddenly realized and decided to learn the statements well and learn how to recover from various data problems. In the following days, Pengcheng's leader introduced him to many books and knowledge about Oracle. With the help of 51CTO Academy, he summarized some common problems and now has mastered Oracle skills.

In the video learning of the academy, Pengcheng can watch and learn on his computer, combining books with the knowledge he has mastered to build an efficient knowledge structure. This is his biggest gain from 51CTO Academy.

Learn to be grateful, sharing is a kind of inheritance

Pengcheng has mastered Linux operation and maintenance, and uploaded his detailed Linux notes to the 51CTO download channel to share with other developers. The link is as follows: http://down..com/zt/2077. Pengcheng is still wandering around 51CTO. Whether he is taking the college entrance examination or studying in a graduate school, he was selected based on his skills despite his ordinary background. He is very grateful for growing up with 51CTO for so many years. "Come on, 51CTO is a technical sanctuary in my heart. If you have anything to say, just let me know. I have gained too many valuable things from 51CTO, and now it is time for us to do something for it."

If you are also willing to share your story, please join the 51CTO developer QQ exchange group 370892523 and contact the group owner. We look forward to your wonderful story!

[51CTO original article, please indicate the original author and source as 51CTO.com when reprinting on partner sites]