~# apt-get install mariadb-server mariadb-client

La version installée est la 1:10.11.3-1.

root:~# mariadb
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 31
Server version: 10.11.3-MariaDB-1 Debian 12
 
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 
MariaDB [(none)]> 

MariaDB [(none)]> show databases;
+---------------------+
| Database            |
+---------------------+
| #mysql50#lost+found |
| information_schema  |
| mysql               |
| performance_schema  |
| sys                 |
+---------------------+
5 rows in set (0,001 sec)
 
MariaDB [(none)]> 

MariaDB [(none)]> show databases;
MariaDB [mysql]> use mysql;
Database changed
MariaDB [mysql]> select Host, User, Password from user;
+-----------+-------------+----------+
| Host      | User        | Password |
+-----------+-------------+----------+
| localhost | mariadb.sys |          |
| localhost | root        | invalid  |
| localhost | mysql       | invalid  |
+-----------+-------------+----------+
3 rows in set (0,002 sec)
 
MariaDB [mysql]> 

~# mysql -u root -pazerty mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 47
Server version: 5.5.44-0+deb8u1 (Debian)
 
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
 
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 
mysql> select host,user from user;
+-----------------+------------------+
| host            | user             |
+-----------------+------------------+
| 127.0.0.1       | root             |
| ::1             | root             |
| localhost       | debian-sys-maint |
| localhost       | root             |
+-----------------+------------------+
4 rows in set (0.00 sec)
 
mysql> quit
Bye
~# 

Noter l'absence de blanc entre -p et le mot de passe.

“mysql” est le nom de la base de données interne à mySQL.