Query where cause 2 field ID

        Editor::inst($db, **tablename**)
        ->pkey('ID')
        ->fields(
            Field::inst('ID'),
            Field::inst('ORGANIZATION_ID'),
            Field::inst('BARCODE'),
            Field::inst('ITEM_NO'),
            Field::inst('DESCRIPTION'),
            Field::inst('ONHAND_QTY'),
            Field::inst('ONHAND_UOM'),
            Field::inst('ACTUAL_QTY'),
            Field::inst('ACTUAL_UOM'),
            Field::inst('REMARK')
        )
        ->where('ACTUAL_QTY',null,'<>')
        ->where(**Field::inst('ACTUAL_QTY')**, **Field::inst('ONHAND_QTY')**,'<')
        ->debug(true)
        ->process($_POST)
        ->json();