The interviewer of Tencent said that who knows the internal module index principle and performance optimization idea of MySQL architecture?

2022 For people from all walks of life, the spring of 2004 was a time of three irons and four coppers , however , For programmers, it is even more ;

Not just because of the epidemic , What is more important is the introduction of the national anti-monopoly law , It has restricted the development of Internet manufacturers , To control big factories in a deeper level , Not controlled by capital , This has led to large factory layoffs , Redundancies 30%-50% Between , Even more ;

For programmers , The iron rice bowl is gone , There is no place in life , What do I do ？ Do you want to return to your hometown for development ？ Or continue to look for opportunities in first tier cities ？

different people have different aspirations , Different ideas , The future development direction is also different , Each has its own choice , Don't force ！

No matter what leaves have fallen to their roots , Or stay in the first tier cities , Actually , There's an important point , We should not ignore ; That's it , Technology still needs to be further cultivated , Technology is the core productivity , Technology is the king ！

Across the iron three copper four , Came to silver five , It should not be joyful , Because someone around me has succeeded in job hopping , And I received it from Tencent offer, I can't help being envied ！

I asked him what questions the interviewer of Tencent had asked ？ He said , The most impressive thing is MySQL The problem of . at that time , There are three people interviewing at the same time , In the end, he only sent me offer, Because I answered well ！

therefore , I'll sneak up on him , He asked him to sort out the questions and answers and sent them to me , I'm going to interview myself , Because I heard about the job hunting in May and June , It's easy to find , There will be another wave of layoffs in July , I have to seize this opportunity ！

This MySQL The interview questions and answers consist of three parts ：Mysql Architecture and internal modules 、MySQL Detailed explanation of index principle 、MySQL Performance optimization ideas and tools ;

Mysql Architecture and internal modules

One 、 A query SQL How is it implemented ？

Two 、MySQL Architecture summary ;

3、 ... and 、 An update SQL How is it implemented ？

MySQL Detailed explanation of index principle

One 、 What is the index ？

Two 、 Index storage model deduction ;

3、 ... and . B+Tree Landing form ;

Four 、 Principles of index use ;

5、 ... and . Creation and use of index ;

MySQL Performance optimization ideas and tools

One 、 Optimization idea ;

Two 、 Connect —— Configuration optimization ;

3、 ... and 、 cache —— Structure optimization ;

Four Optimizer ——SQL Statement analysis and optimization ;

5、 ... and 、 Storage engine ;

6、 ... and summary ： Optimize the system ;

Because it contains too much , Just show you a few big points , In fact, the knowledge points of many details contained in it have not been shown ;

So you need this document to learn , You can forward this article and pay attention to the editor , Private letter editor 【 interview 】 To get ！

I hope I can help you , Satisfied offer, And double the salary , Enter the first-line Internet factory ！！