UTF-8 | How To Convert An Entire MySQL Database Character Set and Collation to UTF-8?

In this Tutorial, we will learn more about How to convert an entire MySQL database character set and collation to UTF-8 for doing the same we need to follow certain steps which we had listed here along with the required code that we need to execute during this conversion.

Conversion Into UTF-8

Follow the steps given below for the conversion which has a total 7 steps which could help in achieving it along with the code which is required to achieve it,

1. Take a backup of your database before making any changes to ensure that you have a fallback option in case of any issues.
2. Connect to your MySQL server using a client such as phpMyAdmin or the MySQL command-line tool.
3. Run the following command to set the default character set and collation for the current session:

SET NAMES utf8mb4 COLLATE utf8mb4_ unicode_ci;

4. Use the Alter Database statement to modify the character set and collation of your database.

ALTER DATABASE database_name
CHARACTER SET utf8mb4
COLLATE utf8mb4_ unicode_ci;

Replace the database name with the name of your database.

5. Iterate over all the tables in your database and modify their character set and collation:

SELECT CONCAT('ALTER TABLE ', table_ name, ' CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_ unicode_ ci;') AS stmt
FROM information_ schema. tables
WHERE table_ schema = 'database_ name'
AND table_ type = 'BASE TABLE';

6. Copy the output from the previous step and execute the generated statements to convert the character set and collation of all tables.

7. Finally, check that the character set and collation of your database and tables have been successfully updated by running the following commands:

SELECT @@character_ set_database, @@collation_ database;
SELECT table_name, table_ collation
FROM information_ schema. tables
WHERE table_ schema = 'database_ name'
AND table_ type = 'BASE TABLE';

Replace the database name with the name of your database.

By keeping the points given above we can say UTF-8 provides better functionalities to the user as compared to the simple databases so people refer to it.

Here we need to note that converting an entire database to UTF-8 can be a time-consuming process, especially for large databases. It’s recommended to perform this operation during off-peak hours to minimize the impact on production systems.

 

 

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