【简答题】In what now seems like the prehistoric times of computer history, the early post-war era, there was a quite widespread concern that computers would take over the world from man one day. Already today,...
【简答题】有订单表orders(oid,odate,cid), 其中oid是订单号,odate是订单日期,cid是客户编号; 订单详细信息表orderitems(oid,pid,quantity);其中pid是商品编号,quantity是数量。 查询购买商品编号为“101”商品的顾客编号及订单日期。SQL语句为( )A. select cid,odate from orderswhere oid in (...
【简答题】Some nations pride themselves on having a clear and logical language. The French, for instance, point to their language as being the clearest and most logical in the world. The Germans, similarly, ten...