This article mainly introduces the tutorial of MySQL to implement batch insertion to optimize performance. The running time is given to express the comparison after performance optimization. Friends in need can refer to it. For some systems with large amounts of data, the database faces In addition to low query efficiency, the problem is that it takes a long time for data to be stored in the database. Especially for reporting systems, the time spent on data import may last for several hours or more than ten hours every day. Therefore, it makes sense to optimize database insertion performance. After some performance tests on MySQL innodb, I found some methods that can improve insert efficiency for your reference. 1. One SQL statement inserts multiple pieces of data. Commonly used insert statements such as INSERT INTO `insert_table` (`datetime`, `uid`, `content`, `type`) VALUES ('0', 'userid_0'
1. 10 recommended articles about optimizing performance
Introduction: This article mainly introduces the tutorial of MySQL to implement batch insertion to optimize performance. The running time is given in the article to indicate the comparison after performance optimization. Friends in need can refer to the following For some systems with large amounts of data, in addition to low query efficiency, the problem faced by the database is that it takes a long time to enter the data into the database. Especially for reporting systems, the time spent on data import may last for several hours or more than a dozen times a day. hours. Therefore, it is very meaningful to optimize the database insertion performance. After some performance tests on MySQL innodb, I found some things that can improve the insert efficiency...
#2. Detailed introduction about optimizing performance
3.
Detailed examples of InnoDB database optimization
##Introduction: InnoDB is designed for maximum performance when processing huge data volumes for MySQL. Its CPU efficiency may not be matched by any other disk-based relational database engine. . Innodb is very popular in websites or applications with large amounts of data. Then it doesn’t need to be optimized. The answer is obvious:
#4! . Detailed explanation of innodb_autoinc_lock_mode method with examples
##Introduction: The editor below will bring you an article Regarding the introduction of MySQL innodb_autoinc_lock_mode. The editor thinks it is quite good. I will share it with you now and give it a reference. Let’s follow the editor and take a look.
Detailed example of innodb_flush_method method in mysql Value method (explanation with examples). The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor to take a look
6. Detailed explanation of the error of table primary key conflict when innodb_index_stats imports data
Introduction: The following editor will bring you an article on how to solve the problem of table primary key conflict when innodb_index_stats imports backup data. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor to take a look.
7. Detailed example of innodb_autoinc_lock_mode in mysql
Introduction: The following editor will bring you a brief discussion of the expression form and value selection reference method of innodb_autoinc_lock_mode. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor and take a look
8. MySQL transaction processing example explanation
##Introduction: Not all engines support transaction processing As mentioned in Chapter 21, MySQL supports several basic database engines. As discussed in this chapter, not all engines support explicit transaction management. MyISAM and InnoDB are the two most commonly used engines. The former does not support explicit transaction management, while the latter does. This is why the sample tables used in this book were created to use InnoDB rather than the more commonly used MyISAM. If your application requires transaction processing capabilities, be sure to use the correct engine type. Transaction processing can
9. Introduction to full-text search in MySQL
Introduction: Understanding Full-Text Search Not All Engines Support Full-Text Search As mentioned in Chapter 21, MySQL supports several basic database engines. Not all engines support full-text search as described in this book. The two most commonly used engines are MyISAM and InnoDB. The former supports full-text search, while the latter does not. This is why, although most of the sample tables created in this book use InnoDB, one sample table (the productnotes table) uses MyISAM. You should keep this in mind if your application requires full-text search functionality.
10. Explanation on the six major differences between the Mysql storage engine InnoDB and Myisam
Introduction: The difference in the composition of MyISAMInnoDB: Each MyISAM is stored as three files on the disk. The name of the first file begins with the name of the table and the extension indicates the file type. The .frm file stores table definitions. The extension of the data file is .MYD (MYData). The extension of the index file is .MYI (MYIndex).
[Related Q&A Recommendations]:
php - mysql error 1005 when creating a foreign key?
java - Row-level locks in innodb
php - mysql table type MyISAM, how to choose InnoDB in practice?
php - If the MySQL storage engine changes MyIsam to innoDB, will it cause data loss or other abnormalities?
myisam - Is InnoDB load data and select very slow in MySQL?
The above is the detailed content of How to use INNODB? Summary of how to use INNODB. For more information, please follow other related articles on the PHP Chinese website!

InnoDB uses redologs and undologs to ensure data consistency and reliability. 1.redologs record data page modification to ensure crash recovery and transaction persistence. 2.undologs records the original data value and supports transaction rollback and MVCC.

Key metrics for EXPLAIN commands include type, key, rows, and Extra. 1) The type reflects the access type of the query. The higher the value, the higher the efficiency, such as const is better than ALL. 2) The key displays the index used, and NULL indicates no index. 3) rows estimates the number of scanned rows, affecting query performance. 4) Extra provides additional information, such as Usingfilesort prompts that it needs to be optimized.

Usingtemporary indicates that the need to create temporary tables in MySQL queries, which are commonly found in ORDERBY using DISTINCT, GROUPBY, or non-indexed columns. You can avoid the occurrence of indexes and rewrite queries and improve query performance. Specifically, when Usingtemporary appears in EXPLAIN output, it means that MySQL needs to create temporary tables to handle queries. This usually occurs when: 1) deduplication or grouping when using DISTINCT or GROUPBY; 2) sort when ORDERBY contains non-index columns; 3) use complex subquery or join operations. Optimization methods include: 1) ORDERBY and GROUPB

MySQL/InnoDB supports four transaction isolation levels: ReadUncommitted, ReadCommitted, RepeatableRead and Serializable. 1.ReadUncommitted allows reading of uncommitted data, which may cause dirty reading. 2. ReadCommitted avoids dirty reading, but non-repeatable reading may occur. 3.RepeatableRead is the default level, avoiding dirty reading and non-repeatable reading, but phantom reading may occur. 4. Serializable avoids all concurrency problems but reduces concurrency. Choosing the appropriate isolation level requires balancing data consistency and performance requirements.

MySQL is suitable for web applications and content management systems and is popular for its open source, high performance and ease of use. 1) Compared with PostgreSQL, MySQL performs better in simple queries and high concurrent read operations. 2) Compared with Oracle, MySQL is more popular among small and medium-sized enterprises because of its open source and low cost. 3) Compared with Microsoft SQL Server, MySQL is more suitable for cross-platform applications. 4) Unlike MongoDB, MySQL is more suitable for structured data and transaction processing.

MySQL index cardinality has a significant impact on query performance: 1. High cardinality index can more effectively narrow the data range and improve query efficiency; 2. Low cardinality index may lead to full table scanning and reduce query performance; 3. In joint index, high cardinality sequences should be placed in front to optimize query.

The MySQL learning path includes basic knowledge, core concepts, usage examples, and optimization techniques. 1) Understand basic concepts such as tables, rows, columns, and SQL queries. 2) Learn the definition, working principles and advantages of MySQL. 3) Master basic CRUD operations and advanced usage, such as indexes and stored procedures. 4) Familiar with common error debugging and performance optimization suggestions, such as rational use of indexes and optimization queries. Through these steps, you will have a full grasp of the use and optimization of MySQL.

MySQL's real-world applications include basic database design and complex query optimization. 1) Basic usage: used to store and manage user data, such as inserting, querying, updating and deleting user information. 2) Advanced usage: Handle complex business logic, such as order and inventory management of e-commerce platforms. 3) Performance optimization: Improve performance by rationally using indexes, partition tables and query caches.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 English version
Recommended: Win version, supports code prompts!

SublimeText3 Mac version
God-level code editing software (SublimeText3)