public static function _genSQL ($params = array (), &$db = FALSE)
	{
		
		// Set select

		if (!isset ($params['select']))
		{
			$params['select']	= '*';
		}
		
		// Set from

		if (!isset ($params['from']))
		{
			$params['from']		= '`' . static::$dbTable . '`';
		}
		
		// Get database slave for read

		if ($db === FALSE)
		{
			$db	=& self::_getDbSlave ();
		}
		
		if (!($db instanceof \PDO))
		{
			throw new Exception ('Invalid or no database resource set');
		}
		
		// Return value

		return $db->genSQL ($params);

	}