How do I change UTF-8 to utf8mb4?

How do I change UTF-8 to utf8mb4?

Switching from MySQL’s utf8 to utf8mb4

1. Step 1: Create a backup.
2. Step 2: Upgrade the MySQL server.
3. Step 3: Modify databases, tables, and columns.
4. Step 4: Check the maximum length of columns and index keys.
5. Step 5: Modify connection, client, and server character sets.
6. Step 6: Repair and optimize all tables.

Is utf8mb4 case sensitive?

utf8_bin is case-sensitive because it compares the binary values of the character.

Is utf8mb4_bin case sensitive?

As such, utf8mb4 is a charset and utf8mb4_unicode_ci/utf8mb4_bin are 2 of his many differents available collations. utf8_unicode_ci do case-insensitive comparison and other special comparisons ( I heard it messes up with all the accents in french for example ) .

How to force MariaDB clients to use utf8mb4?

1 character_set_system is always utf8. init_connect is not performed by anyone connecting as root, so it is not as universal as you would like. SET NAMES utf8mb4 sets 3 things; experiment to see that. You need all 3.

How to change the default collation in MariaDB?

Default collations for each character set can be viewed with the SHOW COLLATION statement, for example, to find the default collation for the latin2 character set: The character_set_server system variable can be used to change the default server character set. It can be set both on startup or dynamically, with the SET command:

What is the collation for utf8mb4 in MySQL?

That said, all my DB tables are encoded as utf8mb4, with the collation utf8mb4_general_ci. However, it doesnt seem that the mysql variables are set correctly.

How to determine the default character set in MariaDB?

The CREATE DATABASE and ALTER DATABASE statements have optional character set and collation clauses. If these are left out, the server defaults are used. To determine the default character set used by a database, use: or alternatively, for the character set and collation: