Open the console (terminal) and connect to an SSH server.
If MySQL database is already created
Go to MySQL:
mysql -uYourLogin -pYourPassword
Replace YourLogin and YourPassword on your login and password.
Now select the database:
use DBName
Where DBName is name of the database for import of data.
And do import from file:
source dumpFile.sql
Where dumpFile.sql is the name of the data dump, or the path to it.
If a MySQL database does not exist yet
If database does not exist yet, it is possible to import with help the following command:
mysql -uYourLogin -pYourPassword db_name < /path/to/dumpFile.sql
Database export via MySQLDump
mysqldump -uYourLogin -pYourPassword DBName > fileDBName.sql