In three steps, MySQL was completed in one day, and I successfully won the Tmall offer

Preface

MySQL has been ranked second in the past two years, and may surpass Oracle's plan to be promoted to first place at any time, because the performance of MySQL has been optimized, and the security mechanism has gradually matured, and more importantly, it is open source and free.

At present, most of the Internet's first choice is still MySQL, so as a developer, it is very necessary to master the use of MySQL, so how to achieve the degree of "proficient" in MySQL, it takes a lot of thought. So how to learn MySQL? Come and talk about it today.

The following introduces my three steps to learn MySQL. I finished MySQL in one day, so I won the offer of Tmall smoothly.

In these three steps, a lot of documents are included, such as Xmind mind maps, study notes, practical documents, interview questions, etc., which are all free to share, and friends who need it can get the download method at the end of the article.
In three steps, MySQL was completed in one day, and I successfully won the Tmall offer

The first step: sort out MySQL and list the structure diagram

No matter what knowledge and skills are learned, it is very important to learn to comb. For a knowledge combing, on the one hand, it can accelerate the memory, and on the other hand, it can make the whole of the knowledge points in the mind clearer and complete, so my first step in learning MySQL is Sort out MySQL.

For the sorting out of MySQL, I also specially compiled such a structure diagram, which contains the main core knowledge related to MySQL, which is really clear at a glance:

In three steps, MySQL was completed in one day, and I successfully won the Tmall offer

MySQL notes diagram (Xmind)

Step 2: From basics to actual combat, everything is done

1. Get started from the basics, decrypt MySQL

In three steps, MySQL was completed in one day, and I successfully won the Tmall offer
In three steps, MySQL was completed in one day, and I successfully won the Tmall offer
In three steps, MySQL was completed in one day, and I successfully won the Tmall offer

2. 21 best practices for MySQL performance optimization

In three steps, MySQL was completed in one day, and I successfully won the Tmall offer
In three steps, MySQL was completed in one day, and I successfully won the Tmall offer
In three steps, MySQL was completed in one day, and I successfully won the Tmall offer

3. About MySQL, my personal small project

I wrote a simple shell script before, which can implement a simple MySQL Group Replication environment test and rapid deployment. It takes about 1 minute to quickly create multiple instance nodes. If you want to learn early MGR, it is recommended to try .

I have manually tested it several times, and it works. I can't say it is tall, but it can basically meet the needs. Today, I took the time to improve it and deployed it in a brand-new environment. It was relatively smooth.

Let me briefly talk about this small project, and hope that everyone will work together to improve it gradually.

The screenshot on github is as follows:

In three steps, MySQL was completed in one day, and I successfully won the Tmall offer

If you want to quickly deploy MGR, here are some basic steps.

1. 首先需要下载MySQL软件,配置/etc/hosts文件,下载二进制包都不需要什么安装了,直接解压放入指定的目录即可,比如/usr/local/mysql。目前最新的版本是官方的5.7.19

The third step: thoroughly understand the interview questions and successfully enter the big factory

1.24 must-master database interview questions

  1. Why use auto-increment column as primary key
  2. Why use data indexing can improve efficiency
  3. The difference between B+ tree index and hash index
  4. Advantages of hash index
  5. Scenarios where hash index is not applicable
  6. The difference between B tree and B+ tree
  7. Why is B+ more suitable for file indexing and database indexing of operating systems in practical applications than B-tree?
  8. MySQL Union Index
  9. Under what circumstances should not build or build less index
  10. What is a table partition?
  11. The difference between table partitioning and sub-table
  12. What are the benefits of table partitioning?
  13. Limiting factors of partition table
  14. How to judge whether MySQL currently supports partitioning?
  15. What are the partition types supported by MySQL?
  16. Four isolation levels
  17. About MVVC
  18. In MVCC concurrency control, read operations can be divided into two categories
  19. Advantages of row-level locking
  20. Disadvantages of row-level locking
  21. MySQL optimization
  22. The difference between key and index
  23. What are the differences between MyISAM and InnoDB in Mysql?
  24. Notes on database table creation
In three steps, MySQL was completed in one day, and I successfully won the Tmall offer
In three steps, MySQL was completed in one day, and I successfully won the Tmall offer

2. MySQL database senior engineer job interview questions

In three steps, MySQL was completed in one day, and I successfully won the Tmall offer
In three steps, MySQL was completed in one day, and I successfully won the Tmall offer

3. BATJ first-line Internet frequently asked MySQL selected 55 questions

In three steps, MySQL was completed in one day, and I successfully won the Tmall offer

to sum up

"Free", "powerful", and "mature", these three points are enough to make MySQL stand at the top of the database field, proud of it. Therefore, being proficient in MySQL and enhancing self-competitiveness will surely shorten the distance with top-tier manufacturers.

In the content of the above article, any MySQL-related materials involved can be shared with everyone for free. Friends who need these materials can be triple-linked (Like+Favorite+Follow).