If an interviewer asks you: What dimensions would you use to optimize MySQL performance? What would you say? The so-called performance optimization is generally for MySQL query optimization. Since we are optimizing the query, we naturally need to know what steps the query operation should go through first, and then think about improving the corresponding steps

In the process of using Sequlize, one-to-many and many-to-many relationships between tables are difficult for us front-end students to understand and API use. This article has done a lot of actual code operations and improved the support for TS part, which is worth your learning

How does innoDB solve phantom reading? 1. Mysql transaction isolation level these four isolation levels, when there are multiple transactions concurrent conflict, may appear dirty read, unrepeatable read, magic read some problems, and innoDB in repeatable read isolation level mode to solve magic read

Mysql > select * from vARCHAR; select * from varchar; select * from varchar

A new json field format is available in MySQL 5.7.8 and above, and a large number of functions are provided to manipulate JSON-type data, so that our MySQL can store document data like Mongo.

Why choose tree structure when there are so many data structures available for MySQL index? Why so many tree structures? Why B+ trees?

Navicat error: 2003 -can't connnect to mysql server on 1.15.247.162

In this paper, Pinterest company how to use MySQL database for a detailed introduction, should be able to help you improve the efficiency of database management.

In facebook's version of MySQL (hereafter referred to as MyRocks), RocksDB is the optional storage engine. One important advantage RocksDB has over the InnoDB engine is that it uses less disk space. In production systems, especially Internet applications with more than 100 million users, disk space is one of the larger costs.

When faced with a similar problem, the preferred solution is to find the problem, locate the problem, and analyze the problem as quickly as possible so that the problem can be solved as soon as possible. Such solutions are often referred to as APM.