$sql = "SELECT pdata.*, supplier.supp_name
FROM ".TB_PREF."purch_data pdata
INNER JOIN ".TB_PREF."suppliers supplier ON pdata.supplier_id=supplier.supplier_id
$sql = "SELECT pdata.*, supplier.supp_name
FROM ".TB_PREF."purch_data pdata
INNER JOIN ".TB_PREF."suppliers supplier ON pdata.supplier_id=supplier.supplier_id