sql 多表返回汇总结果 2015/04/18 31023 清华大佬耗费三个月吐血整理的几百G的资源,免费分享!....>>> with tb(id,product,barcode,qty) as ( select 1,'AA',240,3 union all select 2,'BB',245,2 union all select 3,'AA',255,2 union all select 4,'BB',240,1 ) select * from tb compute sum(qty),sum(barcode)