World database MariaDB on Linux Fedora

Install database server:
```
$ sudo yum install -y mariadb-server
```
Check MariaDB version:
```
$ mysql -V
```
Start database server:
```
$ sudo service mariadb start
```
Improve security of database and setting important parameters of DB:
```
$ mysql_secure_installation
```
Download world database from https://downloads.mysql.com/docs/world-db.zip.
Extract and import file world.sql to database system:
```
$ mysql -u root -p < world.sql
```
Connect to database:
```
$ mysql -u root -p
```
List of databases:
```
SHOW DATABASES;
```
Select world database:
```
USE world;
```
Overview of tables:
```
SHOW TABLES;
```

Structure of tables:

DESCRIBE city;
DESCRIBE country;
DESCRIBE countrylanguage;

Provide feedback