TYPO3.ExtJS

The problem can be solved (any other way, I tried did fail) by directly adding the SET NAMES "UTF-8" to the following class: \F3\Resources\PHP\Doctrine\DBAL\Driver\PDOMySQL\Driver.php as shown below.

/** * Attempts to establish a connection with the underlying driver. * * @param array $params * @param string $username * @param string $password * @param array $driverOptions * @return Doctrine\DBAL\Driver\Connection
*/
public function connect(array $params, $username = null, $password = null, array $driverOptions = array()) {
$conn = new \Doctrine\DBAL\Driver\PDOConnection(
$this->_constructPdoDsn($params),
$username,
$password,
$driverOptions
);
$conn->exec('SET NAMES "UTF8"');
return $conn;
}

I suppose, it will be no problem to get the same result with a dedicated configuration option.