mysql import garbled characters

MySQL is a very popular relational database management system that helps us store and manage data. When using MySQL to import data, you may encounter garbled characters. This article will introduce the reasons and solutions for garbled characters when importing MySQL.

1. Causes of garbled characters

(1) Character set mismatch: When we import a file containing non-ASCII characters into MySQL, if MySQL does not support This character set will cause garbled characters. Two situations may occur: first, the character set of the imported data is inconsistent with the character set of MySQL; second, the character set of the imported data is inconsistent with the character set of the file itself.

(2) The encoding format of the file itself is incorrect: When we match the encoding format of a file with MySQL, garbled characters will appear. For example, if you import a GBK-encoded file into MySQL, garbled characters will appear.

2. Solution

(1) Modify the character set of MySQL: We can modify the character set of MySQL so that it can support the character set of the file we want to import. In MySQL, it supports many character sets. You can query the current MySQL default character set through the following command:

SHOW VARIABLES LIKE 'character_set_database';

If the character set of the database is inconsistent with the character set of the imported data, you can use the following command to Modify the character set of MySQL:

ALTER DATABASE `your_database_name` CHARACTER SET utf8;

(2) Check the encoding format of the file: We can use some editors, such as Sublime Text, Notepad and other tools to check the encoding format of the file to ensure that it is consistent with the characters of MySQL Set consistent. In Sublime Text, we can check the encoding format of the file through the following operations:

View -> Encoding

(3) Use the command line to import data: We can use the command line tool to import data. Before importing data, we can specify the MySQL character set and file encoding format, for example:

mysql -h localhost -u username -p --default-character-set=utf8 your_database_name < your_data.sql

In this way, we can import data through the command line tool and specify the correct character set and file encoding. format to avoid garbled characters.

3. Summary

In order to avoid garbled characters when importing data, we need to ensure that the character set of MySQL is consistent with the character set of the imported data, and check whether the encoding format of the file is correct. If garbled characters appear, we can solve it by modifying MySQL's character set, or using command line tools to import data and specify the correct character set and file encoding format.

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