摘要: select xx from。。。查出来的是XX字段。from XX查出来是对象 from Customer c inner join c.orders o group by c.age;(1) select c.ID,c.name,c.age,o.ID,o.order_number,o.customer_ID from Customer c inner join c.orders c ... 阅读全文
posted @ 2017-12-26 16:14 快乐的小银龙 阅读(912) 评论(0) 推荐(0) 编辑