Error establishing a database connection

I keep getting the message that there is an “Error establishing a database connection”. As I understand the wp-config-sample.php file (which I have renamed “wp-config.php” before uploading) I only have to enter name of the database, username and password. See below (password written in letters in my file, of course). Do I have to fill in somthing in “define(‘DB_COLLATE’, ”);”
as well?

<?php
// ** MySQL settings ** //
define(‘DB_NAME’, ‘viarecta_dk_db’); // The name of the database
define(‘DB_USER’, ‘viarecta’); // Your MySQL username
define(‘DB_PASSWORD’, ‘********’); // …and password
define(‘DB_HOST’, ‘localhost’); // 99% chance you won’t need to change this value
define(‘DB_CHARSET’, ‘utf8’);
define(‘DB_COLLATE’, ”);