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SQL optimization and troubleshooting (MySQL version)

Introduction >
ChapterCourseware
Chapter1MySQL underlying principles

Course Introduction

01 minutes24 seconds

Installation, start and stop of RPM version of MySQL under Linux

09 minutes31 seconds

MySQL startup problems, configuration files, and encoding problems

23 minutes34 seconds

MySQL layering and storage engine

15 minutes54 seconds
Chapter2SQL optimization

SQL parsing process, index, B-tree

18 minutes52 seconds

B-tree and index

23 minutes47 seconds

SQL optimization preparation

11 minutes30 seconds

id, table in explain

38 minutes33 seconds

Detailed explanation of type level

29 minutes52 seconds

Index type and gradual optimization, key_len calculation method

27 minutes04 seconds

ref、rows、usingFilesort

17 minutes48 seconds

Extra field

22 minutes39 seconds
Chapter3Optimization case

Optimization example

16 minutes24 seconds

Single table optimization and summary

22 minutes30 seconds

Multi-table optimization

35 minutes12 seconds
Chapter4The principle of optimization failure

Avoid index failure principle

19 minutes14 seconds

Other common optimization methods

36 minutes04 seconds
Chapter5SQL Troubleshooting-Slow Query Log

Slow query threshold and mysqldumpslow tool

12 minutes35 seconds

Simulate and analyze massive data through profiles

43 minutes25 seconds

Global query log

11 minutes33 seconds
Chapter6lock mechanism

Detailed explanation of lock mechanism

33 minutes01 seconds

Write lock example and MyISAM mode features

05 minutes18 seconds

Table lock situation analysis and row lock analysis

24 minutes04 seconds

Precautions and usage analysis of row locks

17 minutes52 seconds

Query row lock

04 minutes21 seconds
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