Set mysql Korean in Ubuntu

Recently, there was an include rule in mysql's my.cnf, so it was changed.

Settings files that belong to clients, servers, etc It should be in /etc/mysql.conf.d. (This usually includes settings for MariaDB, which replaces MySQL.)

For older MySQL-only settings files It will be included in /etc/mysql/mysql.conf.d/

Each directory has the necessary settings to read and process all files ending in .cnf, but if they don't exist, you can create and set them up in one of the above two directories.

For example, change the default character set for Clytherton.

### This file can be placed with client.cnf in /etc/mysql/mysql.conf.d/.
[client]
default-character-set = utf8

MariaDB only setting

## This file should be placed with client.cnf in /etc/mysql/conf.d/.
[client-mariadb]
default-character-set = utf8

Of course, it doesn't matter if you make a single file without the above distinction. It's just for management.

And if you have my.cnf that you used before, you can copy it to /etc/mysql/mysql.conf.d/.