Home Database Mysql Tutorial What is the default character encoding of mysql database

What is the default character encoding of mysql database

Apr 22, 2024 pm 06:42 PM
mysql linux data lost

The default character encoding depends on the operating system: UNIX/Linux: utf8mb4 Windows: MySQL 8.0: utf8mb4, MySQL 5.7-: latin1

What is the default character encoding of mysql database

MySQL database default character encoding

The default character encoding of MySQL database depends on the operating system and installation configuration. Generally speaking, the default character encoding is as follows:

For UNIX/Linux systems:

  • utf8mb4

For Windows:

  • MySQL 8.0 and above: utf8mb4
  • MySQL 5.7 and below: latin1

utf8mb4 is a Unicode compatible character set that supports multiple languages ​​and character sets. Latin1 is an older character set that only supports Western European languages.

Change the default character encoding

If you need to change the default character encoding, you can modify the MySQL configuration file (my.cnf) and add the following lines :

<code>[mysqld]
character-set-server=utf8mb4</code>
Copy after login

Next, you need to restart the MySQL service for the changes to take effect.

Impact

The default character encoding affects the character set in which data is stored and retrieved from the database. If your application and database use different character sets, this may cause data loss or display problems. Therefore, it is recommended that the application and database use the same character set to ensure data integrity and consistency.

The above is the detailed content of What is the default character encoding of mysql database. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1664
14
PHP Tutorial
1266
29
C# Tutorial
1239
24
Explain the purpose of foreign keys in MySQL. Explain the purpose of foreign keys in MySQL. Apr 25, 2025 am 12:17 AM

In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.

Compare and contrast MySQL and MariaDB. Compare and contrast MySQL and MariaDB. Apr 26, 2025 am 12:08 AM

The main difference between MySQL and MariaDB is performance, functionality and license: 1. MySQL is developed by Oracle, and MariaDB is its fork. 2. MariaDB may perform better in high load environments. 3.MariaDB provides more storage engines and functions. 4.MySQL adopts a dual license, and MariaDB is completely open source. The existing infrastructure, performance requirements, functional requirements and license costs should be taken into account when choosing.

SQL vs. MySQL: Clarifying the Relationship Between the Two SQL vs. MySQL: Clarifying the Relationship Between the Two Apr 24, 2025 am 12:02 AM

SQL is a standard language for managing relational databases, while MySQL is a database management system that uses SQL. SQL defines ways to interact with a database, including CRUD operations, while MySQL implements the SQL standard and provides additional features such as stored procedures and triggers.

How to understand DMA operations in C? How to understand DMA operations in C? Apr 28, 2025 pm 10:09 PM

DMA in C refers to DirectMemoryAccess, a direct memory access technology, allowing hardware devices to directly transmit data to memory without CPU intervention. 1) DMA operation is highly dependent on hardware devices and drivers, and the implementation method varies from system to system. 2) Direct access to memory may bring security risks, and the correctness and security of the code must be ensured. 3) DMA can improve performance, but improper use may lead to degradation of system performance. Through practice and learning, we can master the skills of using DMA and maximize its effectiveness in scenarios such as high-speed data transmission and real-time signal processing.

How does MySQL differ from Oracle? How does MySQL differ from Oracle? Apr 22, 2025 pm 05:57 PM

MySQL is suitable for rapid development and small and medium-sized applications, while Oracle is suitable for large enterprises and high availability needs. 1) MySQL is open source and easy to use, suitable for web applications and small and medium-sized enterprises. 2) Oracle is powerful and suitable for large enterprises and government agencies. 3) MySQL supports a variety of storage engines, and Oracle provides rich enterprise-level functions.

MySQL: The Database, phpMyAdmin: The Management Interface MySQL: The Database, phpMyAdmin: The Management Interface Apr 29, 2025 am 12:44 AM

MySQL and phpMyAdmin can be effectively managed through the following steps: 1. Create and delete database: Just click in phpMyAdmin to complete. 2. Manage tables: You can create tables, modify structures, and add indexes. 3. Data operation: Supports inserting, updating, deleting data and executing SQL queries. 4. Import and export data: Supports SQL, CSV, XML and other formats. 5. Optimization and monitoring: Use the OPTIMIZETABLE command to optimize tables and use query analyzers and monitoring tools to solve performance problems.

Linux Operations: Managing Files, Directories, and Permissions Linux Operations: Managing Files, Directories, and Permissions Apr 23, 2025 am 12:19 AM

In Linux, file and directory management uses ls, cd, mkdir, rm, cp, mv commands, and permission management uses chmod, chown, and chgrp commands. 1. File and directory management commands such as ls-l list detailed information, mkdir-p recursively create directories. 2. Permission management commands such as chmod755file set file permissions, chownuserfile changes file owner, and chgrpgroupfile changes file group. These commands are based on file system structure and user and group systems, and operate and control through system calls and metadata.

macOS vs. Linux: Exploring the Differences and Similarities macOS vs. Linux: Exploring the Differences and Similarities Apr 25, 2025 am 12:03 AM

macOSandLinuxbothofferuniquestrengths:macOSprovidesauser-friendlyexperiencewithexcellenthardwareintegration,whileLinuxexcelsinflexibilityandcommunitysupport.macOS,developedbyApple,isknownforitssleekinterfaceandecosystemintegration,whereasLinux,beingo

See all articles