Remember a real MySQL million data optimization

News 2023-08-26 05:03:23 views: null

证实下确实是150万+数据哈

insert image description here

Original SQL

insert image description here

Original SQL execution plan

insert image description here

The original SQL execution time is about 5 seconds

insert image description here

Raw SQL Analysis

Source of ideas
Looking at SQL as a whole, it seems that there is nothing to optimize. Then we could be very wrong.
Some people may say why table B is abnormal behind table A, because this is an inner join query, not a left and right join query. The order of A and B tables can be exchanged (the actual measurement has no effect).
First, we can see that the extra of the execution plan is User where；Using temporary；Using filesort
type ALL全表扫描, indicating that there is a problem with the SQL and needs to be optimized.

Guess you like

Origin blog.csdn.net/qq_40673786/article/details/131810627

Remember a real MySQL million data optimization

Remember a Mysql big data paging optimization problem

Million level optimization mysql data table

MySQL one million pages of data and query optimization

Mysql million-level data storage optimization

Mysql ten million to improve data SQL query optimization 30 Experience

MySQL single table one million data records page performance optimization

MySQL optimization--100 million data efficiency COUNT(*)

MySQL query performance optimization of MySQL pagination single table one million data records page performance optimization

Remember a mysql performance optimization process

MySql ten million limit optimization

mysql-- ten million Big Data SQL query optimization few experience

mysql million-level data query optimization practice-from start to expulsion

Oracle ten million data paging query optimization

Remember once mysql data migration

Http remember a webservice optimization mode request (real business recursive)

MySQL optimization strategy ten million large table

Million level breakdown MYSQL optimization strategy

Mysql million-level table partition optimization

Performance Optimization | achieve million lines of data read-level optimization

Mysql data to generate one million

[Optimization] MySQL ten million large table optimization solutions

Mysql Data Import optimization

MySQL data type optimization

Mysql data query optimization

mysql data optimization

MySQL performance optimization whole-process landing plan (real data scenarios in the industry)

Remember the performance optimization practice of data expiration in a tens of billions of mongodb clusters

Remember the performance optimization practice of data expiration in a tens of billions of mongodb clusters

The amount of one million data <handling> SQL statement optimization

Recommended

Ranking

Empire cms smart tag calls four first-level recommended articles, starting from the fourth article

Linux environment installation and configuration Elasticsearch7.17

Big Data processing architecture and Lambda Kappa architecture

Explore the top of the AI large model platform - Wenxin Qianfan

Beijing car PK10 lucky airship Guanya size and value of the odd and even tips

W3B x Sui Hacker House｜In-depth understanding of Sui and Move language

Know almost Ko Chan: Chinese what any decent open source software products? (Finishing from my original answer)

Comprehensively improve AD domain security authentication | Zhuyun IDaaS

Android Update Engine Analysis (24) What happened when making the downgrade package?

Spark Architecture and Operating Mechanism (1) - System Architecture

Daily

More

2024-05-07(34)

2024-05-06(6)

2024-05-05(0)

2024-05-04(18)

2024-05-03(8)

2024-05-02(0)

2024-05-01(4)

2024-04-30(36)

2024-04-29(5)

2024-04-28(12)