?users:用戶表
Orderss:訂單表
U_O:用戶和訂單的中間表
OrdersEntities1 oe = new OrdersEntities1();
??????????? var result = from user in oe.Users
???????????????????????? join o_u in oe.U_OC
???????????????????????? on user.Id equals o_u.UId into o_uList
???????????????????????? from o_u1 in o_uList.DefaultIfEmpty()
???????????????????????? join o in oe.Orderss
???????????????????????? on o_u1.OId equals o.Id into o_u1List
???????????????????????? from o_u2 in o_u1List.DefaultIfEmpty()
???????????????????????? select new
???????????????????????? {
???????????????????????????? user.Name,
???????????????????????????? OrderName=o_u2.Name
???????????????????????? };
更多文章、技術(shù)交流、商務(wù)合作、聯(lián)系博主
微信掃碼或搜索:z360901061
微信掃一掃加我為好友
QQ號(hào)聯(lián)系: 360901061
您的支持是博主寫作最大的動(dòng)力,如果您喜歡我的文章,感覺我的文章對(duì)您有幫助,請(qǐng)用微信掃描下面二維碼支持博主2元、5元、10元、20元等您想捐的金額吧,狠狠點(diǎn)擊下面給點(diǎn)支持吧,站長非常感激您!手機(jī)微信長按不能支付解決辦法:請(qǐng)將微信支付二維碼保存到相冊(cè),切換到微信,然后點(diǎn)擊微信右上角掃一掃功能,選擇支付二維碼完成支付。
【本文對(duì)您有幫助就好】元

