sapselect怎么模糊查询

"定义内表:gt_datadata:begin of wa_data, werks type afpo-werks, aufnr type afpo-aufnr, vornr type afru-vornr, auart type aufk-auart, end of wa_data, gt_data like table of wa_data.SELECT A~dwerk as werks a~aufnr "工单号码 b~vornr "作业 c~auart "订单类型 FROM afpo as a INNER JOIN afru as b ON a~aufnr = b~aufnr inner join AUFK as c on a~aufnr = c~aufnr INTO CORRESPONDING FIELDS OF TABLE gt_data WHERE a~dwerk = '工厂' .