AND ".TB_PREF."grn_batch.id = ".TB_PREF."grn_items.grn_batch_id
AND ".TB_PREF."grn_items.po_detail_item = ".TB_PREF."purch_order_details.po_detail_item
AND qty_recd-quantity_inv <>0 ";
AND ".TB_PREF."grn_batch.id = ".TB_PREF."grn_items.grn_batch_id
AND ".TB_PREF."grn_items.po_detail_item = ".TB_PREF."purch_order_details.po_detail_item
AND qty_recd-quantity_inv <>0 ";