Common causes and solutions for Chinese garbled characters in MySQL installation

Common reasons and solutions for Chinese garbled characters during MySQL installation

MySQL is a commonly used relational database management system, but you may encounter Chinese characters during use The problem of garbled characters causes trouble to developers and system administrators. The problem of Chinese garbled characters is mainly caused by incorrect character set settings, inconsistent character sets between the database server and the client, etc. This article will introduce in detail the common causes and solutions of Chinese garbled characters in MySQL installation to help everyone better solve this problem.

1. Common reasons:

1. Incorrect character set setting: MySQL’s character set includes server-side character set and client-side character set, if they are not uniformly set to utf8 or utf8mb4 , Chinese garbled characters may appear.
2. Inconsistent database character sets: If different character sets are specified when creating the database, it may also cause Chinese garbled characters during database operations.
3. Incorrect database connection character set: When connecting to the database, if the connection character set is not set correctly, it will also cause the problem of Chinese garbled characters.

2. Solution:

1. Set the character set of MySQL to utf8 or utf8mb4

In the MySQL configuration file my.cnf Add the following content:

[client]
default-character-set=utf8

[mysql]
default-character-set=utf8

[mysqld]
character-set-server=utf8
collation-server=utf8_general_ci

Then restart the MySQL service:

sudo service mysql restart

2. Specify the character set as utf8 or utf8mb4 when creating the database

When creating the database, Use the following command to specify the character set:

CREATE DATABASE database_name CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

3. Set the database connection character set to utf8 or utf8mb4

When connecting to the MySQL database, execute the following command to set the connection character set:

SET NAMES 'utf8';

Through the above settings, you can ensure the correct display of Chinese data in the MySQL database and avoid garbled characters.

Summary:

When the Chinese garbled problem occurs when using MySQL, you must first check whether the character set settings are correct, including whether the server-side and client-side character sets are unified, and whether the database connection character set is Correct settings etc. Through the operation of the above solutions, the problem of Chinese garbled characters in MySQL installation can be effectively solved and the normal display of Chinese data in the database can be ensured. I hope the above content is helpful to everyone.

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