In MariaDB, you can create a database by following these steps:
1. Log in to MariaDB:
```
mysql -u root -p
```
1. Once logged in, you can see the MariaDB prompt. To create a database, use the following command:
```
CREATE DATABASE my_database;
```
Replace “my\_database” with the name of the database you want to create.
1. To verify whether your database is created, use the following command:
```
SHOW DATABASES;
```
Your created database should be listed in the databases list.
1. Once the work is done, you can exit from MariaDB using the following command:
```
QUIT
```
Remember every time you make a command in SQL you should end it with a semicolon (;).