sql_str = "select (Convert(bigint,Goods.pno)) as pno, title from Goods INNER JOIN GoodsRecord on Goods.pno = GoodsRecord.pno WHERE Goods.pno in (20112011,20112012)";
sql_str = "select (Convert(bigint,Goods.pno)) as pno, title from Goods INNER JOIN GoodsRecord on Goods.pno = GoodsRecord.pno WHERE Goods.pno in (20112011,20112012)"; 错误提示:转换 nvarchar 值 '4020002810' 时溢出了整数列。超过了其中最大的整数值。