CI_DB_active_record::select_max PHP Méthode

    function select_max($select = '', $alias = '')
    {
        return $this->_max_min_avg_sum($select, $alias, 'MAX');
    }

 public final function max($Field)
 {
     $this->db->select_max($Field, 'max');
     $Query = $this->db->get($this->_table());
     $Row = $Query->row();
     return $Row->max;
 }