I’ve written about Mysql since I wrote about how to tune the JVM: How to hit the JVM mountain, and how to finish it.
I have summarized all Mysql articles according to my mind map, which have been covered basically, and the basic content has been covered by relevant articles:
Therefore, this article will make a summary to facilitate everyone’s learning. Basically, the above mind map is used for learning. If you need the above mind map, you can add my wechat account: ABC730500468 to obtain it.
First of all, I recommend learning Mysql books as follows:
We are familiar with the “Mysql 45 lecture”, “Mysql Technology Insider InnoDB Storage Engine 2nd edition”, “Mysql performance tuning and Architecture Design”, “high performance Mysql 3rd Edition” these four are recommended more in the market.
There are a lot of books, a lot of chapter content, we only need to learn their own part can be learned, specific learning content can refer to this article: How to learn Mysql? Learn what? How to learn? Let’s talk about a billion personal opinions
The first basics of Mysql: Mysql Prelude!! Let’s start with a 20,000-word summary of the basics and an original article I wrote earlier: a 10,000-word long, most hardcore summary of mysql knowledge.
Mysql syntax, basic CRUD operations, there are basic can directly bypass.
Here is an in-depth index for Mysql, a 20,000 word Mysql index article for you: In order to explain the basic principle of Mysql index, I turned the computer to the bottom, to help you into the factory, these Mysql index basic knowledge you must know, Ali side, gave several SQL, ask how many times to perform the tree search operation? .
Mysql index data structure, left-most prefix principle, index optimization principle and some personal experience, readers are also very good comments.
The fifth chapter is about the principle of Mysql join: those things in Mysql join, explain in detail three kinds of join algorithm, in order to optimize the means of join.
The sixth article is the principle and optimization of order BY: Order by in detail: This article is not personally written, but it is also a high quality article, so I recommend you to learn, because I personally read it, also refer to “Mysql 45” output of the article.
I thought I was familiar with Mysql transactions until I met Ali, who explained the principles and features of transactions in detail.
This article has also been recommended to the home page of CSDN and has been read by more than 70,000 people. However, many people are also used to it: blog.csdn.net/qq_43255017…
In addition to the above written local transactions, this number has been reproduced before a micro services, distributed transactions: do not understand distributed transactions, don’t say you understand micro services! We can compare and learn from each other.
Article 8 is Mysql locking mechanism, locking mechanism is more complex, and the associated with the transaction, although some principle of transaction principle is based on the locking mechanism, but for the principle of the transaction is relatively easy to understand, so there are the basis for the principle of the transaction, to understand the locking mechanism is better understand: giant the interviewer will ask Mysql locking mechanism
Mysql > update Mysql > update Mysql > update Mysql > update Mysql > update Mysql > update Mysql > update Mysql > update Mysql
There is also an article about the database pessimistic lock optimistic lock: talking about the database optimistic lock, pessimistic lock
Transaction isolation level, blocking, deadlocks, mix and match, also can see this article: 8000 words | | 32 drawing is understand + transaction isolation level + block, a deadlock
MySQL InnoDB storage engine: InnoDB storage engine: InnoDB file structure
Slow_query_log (slow_query_log, slow_query_log, slow_query_log)
If you are interested, there is a section on slow SQL, you can learn about it.
Mysql master-slave replication principle (principle + practice)
The main database in Mysql is running too fast, so you can’t catch up with the secondary database. , can be compared to learn.
The following part is the interview part about Mysql, as well as some articles about the actual business combat and optimization.
Interviewer: I heard that you write SQL quite well, you said that query SQL execution process
Interviewer: Do you know how a SELECT statement and an UPDATE statement are executed separately?
20 Mysql Interview questions: The most comprehensive Mysql interview questions prepared for you. “, a comprehensive summary of all the Mysql interview questions will come across, and can be exchanged with the interviewer wave.
Below all as a summary together, will not go to an introduction.
Tuning articles:
- MySQL mass data optimization (theory + practice) to beat the interviewer
- MySQL > Update MySQL > Update MySQL > Update MySQL > Update MySQL
- How to complete a quick query?
- Common SQL error, avoid pit!!
- Explain can not be used, you are also good at Mysql query optimization?
The interview article:
- Double-write consistency between database and cache
- The most complete database interview questions in history, do not look at the absolute regret!
- If MySQL causes too much CPU consumption, how will you optimize it?
- Here are 20 Mysql interview questions.
- Distributed locks (database, Redis, ZK) pat you
Principle of the article:
- Is the baby asleep? This 1W word explanation of InnoDB principle for you!
- Delete library must run away? MySQL > restore data
Mysql > Mysql > Mysql > Mysql > Mysql > Mysql > Mysql > Mysql > Mysql > Mysql
Mysql > Mysql > Mysql > Mysql > Mysql > Mysql > Mysql > Mysql > Mysql
Well, all the articles of Mysql are finished output, basic every technical point is involved, and in-depth explanation of the principle, some of the operation and maintenance of the actual operation, such as master and slave construction.
Some people say, “Can you remember all that?” No one can remember it in detail. However, knowledge is like this, it is impossible to eat into a fat man all of a sudden, are repeated review, continuous warmth, you each through a stage of promotion, for the previous review of knowledge will have a new understanding and understanding.
When you can connect all the knowledge points in the actual business, it shows that you have a further understanding and depth of knowledge. Maybe at the beginning, we learn to knock code, the more to the later, we become to learn thinking and design, not to tangle with each line of code.
I feel personal ascension or bigger now, before I knock on the code is based on the implementation, will thingk now, how to optimize the interface (asynchronous programming), reduce the response time of the interface, optimize SQL (field how redundancy, how creating a suitable index), the JVM tuning parameter Settings, the basic crud code is not very interested.
Now, received a demand are seriously thinking about every scene, every optimization point, will not immediately to achieve, because I feel is the most simple, most of the implementation are spent on thinking, almost knock down to just two or three hours a day in the code, the rest of the time are thinking about or see the article, will have time to do a mind map sum up summary.
So, personal perception is helpful.
Blowing a little too much, hahaha. So, come on, everybody!!
This is my personal learning comprehension, each of the above basic are high quality, even if there are some are reproduced, I will review, no quality I will not be sent to this number, so, it is worth a look.
Below, I intend to serialize the concurrent programming article, because recently, in the project, in order to ensure data consistency, prevent the emergence of dirty data, also used some concurrent tool classes, as well as asynchronous programming, while learning to use.
Ok, that’s all for this issue, I’m Lidu, we’ll see you next issue, if you feel my article is helpful, thank you for your thumbs up.