重新匹配订单商品货号

把因没有下载商品导致没有商品货号的订单明细，重新匹配货号，再次吐槽mysql的update和delete脚本限制多多，让我这不合格的程序员难堪

create table tmp201409162227 AS 
SELECT l.po_line_id, pt.product_code
  FROM trade t, po_header p, po_line l, product pt
 WHERE t.shop_id = 3456
   AND t.pay_time >= '2014-09-16 00:00:00'
   AND t.pay_time <= '2014-09-16 23:59:59'
   AND t.Trade_ID = p.Trade_ID
   AND p.Po_Header_Id = l.po_header_id
   and l.num_iid = pt.num_iid
   AND (t.Trade_Status = 'WAIT_BUYER_CONFIRM_GOODS' OR
       t.Trade_Status = 'WAIT_SELLER_SEND_GOODS')
   AND l.product_code = '';

UPDATE po_line lll
   SET lll.product_code = (SELECT tm.product_code
                             FROM tmp201409162227 tm
                            where tm.po_line_id = lll.po_line_id)

 WHERE lll.po_line_id IN (SELECT tt.po_line_id FROM tmp201409162227 tt
                          
                          );