MySQL is the world's most popular open source, binary database server. It is capable of supporting over 50,000,000 records. SQL (Structured Query Language) is the language used to communicate with the MySQL server.
You can create your db at https://www.host.sk/users/mydb/. Accessing your MySQL database by your PHP scripts use following db address: MySQL Server - db.host.sk (port 3306) OR db1.host.sk (port 3306) - please look for correct settings in "my DB" section of you user account.
To communicate with MySQL server use SQL (Structure Query Language) language. SQL Manual is available at http://www.dbmaker.com/reference/manuals/sql/SQL.htm.