/**
* Executes a query that returns 1 and only 1 row.
* Throws an exception if the query selects none, 2 or more rows.
*
* @param string $query The SQL statement.
*
* @return array The selected row.
*/
public static function executeRow1($query)
{
self::logQuery($query);
return self::$dl->executeRow1($query);
}
