1.) Upload your SQL file via FTP Software (such as Filezilla) to your web space (public_html)
2.) Open an SSH client (such as Putty) and login as root/admin
3.) Use the command below (don’t forget to use your correct database information:

mysql -u database user -p database name < /home/username/public_html/jouwdatabase.sql

Ps. don’t forget to delete the database from your public_html folder immediately afterwards

Do you have questions or would you prefer us to do this for you? Then please contact us.