As everyone who has workplace experience knows, interviews at Dachang are really hard to describe. Not only do you look at your ability to perform on the spot during the interview, but also test your familiarity with the core technology of the company's business in N times. If you don't have a solid basic skills, it's too difficult to fool the interviewer. If you go to look through those 30 and 40K positions in Dachang, you will understand:
The technical points that major manufacturers focus on are different, but they are always the same. For Java development posts, in addition to requiring you to use Spring and other Java core frameworks proficiently, MySQL, as a mainstream relational database, is being asked in an interview. The most important foundation that needs to be consolidated. To put it bluntly, nowadays, big factory interview questions cannot bypass MySQL, and many will directly ask you some questions about the storage engine layer:
- What is the realization principle of InnoDB record storage and indexing?
- How to improve system performance through MySQL transaction management mechanism?
- What are the mechanisms of MySQL InnoDB locks?
- How to deal with a deadlock during development?
I really feel that many people do not lack ability in interviews, but because they can only work in the company, which leads to a mess of knowledge system , and it is easy for the interviewer to feel that they don't understand. The above questions seem simple, but they are difficult to manage without a systematic MySQL knowledge .
However, many small partners suffer from lack of reference materials, lack of expert guidance when encountering problems, falling into tuning details, which consumes a lot of time and energy, and lack of best practices for guidance. But don't panic, this time I specially organize and share this MySQL basic to advanced tuning study notes to friends in need! Due to space reasons, this article only shows the catalog and content screenshots. The free method for those who need to learn this MySQL from basic to tuning learning manual is at the end of the article!
MySQL Basics Directory and Content
In this part, the overall concept of MySQL, execution process, database engine, query cache, table space, table back query, difference between data types, memory tables, temporary tables, n ways to delete tables, enumeration, views, data recovery, etc. Answer related knowledge points!
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MySQL index and optimization articles directory and content
As the number of system users continues to increase, the importance of MySQL index is self-evident. For back-end engineers, only after understanding the index and its optimization rules and applying them in actual work, can they continuously improve system performance and development. Create a system with high performance, high concurrency and high availability. This part focuses on in-depth analysis and explanation of indexing and optimization!
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MySQL advanced optimization and lock issues catalog
Nowadays, the Internet industry uses MySQL the most, regardless of the size of the project. However, MySQL is actually playing with optimization and architecture design. This part will first lead you to talk about the query optimization of MySQL performance optimization, understand what MySQL query optimization has, and later use it in the project. The main contents are as follows:
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MySQL log and structure catalog
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Master MySQL Advanced Interview Analysis Collection
MySQL Basics
MySQL Index
MySQL transactions
MySQL lock
MySQL log articles
MySQL performance optimization articles
to sum up
As a programmer, database is a required course, and MySQL database is undoubtedly the most commonly used database. The stability, high efficiency, and high concurrency of the system depend to a large extent on whether the database performance is good enough. This shows the importance of performance optimization. It is not difficult to understand that you will be asked about database tuning in any interview. Excellent related issues.
If you do not have a good way to learn MySQL better, this MySQL basic to advanced tuning study notes, interview book and learning brain map can help you very well! Small partners in need only need:
One-click triple + follow and then scan the code to get!
