/**
* Connects to the database if needed.
*
* @return void Returns void if the database connected successfully.
*
* @since 12.1
* @throws RuntimeException
*/
public function connect()
{
if ($this->connection) {
return;
}
parent::connect();
if (isset($this->options['schema'])) {
$this->setQuery('ALTER SESSION SET CURRENT_SCHEMA = ' . $this->quoteName($this->options['schema']))->execute();
}
$this->setDateFormat($this->dateformat);
}
