Linq中关于Distinct关键字的问题 [英] Problems with Distinct keyword in Linq

查看:78
本文介绍了Linq中关于Distinct关键字的问题的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

Hello All
我正在尝试将SQL查询更改为Linq查询,但我的语法有问题。
查询如下。它的目的是汇总每个唯一目的地的所有统计数据,它在SQL中需要它的工作原理

Hello All
I am trying to change a SQL query to Linq query but i have trouble with the syntax.
Query is as below. Its purpose is to sum all statistics for each unique destination and it works as i needed in SQL











选择 < font style ="font-size:11px"> distinct destination, sum (已回答) as 已回答,
sum (siezed) as 已占用, sum (保持时间) as 保持时间,
sum (totalduration) as 持续时间 来自 < font style ="font-size:11px"> report_test(nolock) group by destination
select distinct  destination ,sum(answered) as Answered,  
sum(siezed) as Seized,sum(holdtime) as Holdtime,  
sum(totalduration) as Duration from report_test(nolock) group by destination

推荐答案

这类似的工作:
报告
.Groupby(r => r.Destination)
。选择(g => new {Destination = g.Key,Answered = g.Sum(u => u.Answered),...}
.Distinct(); < br>

希望这有帮助,
Sushil。
Would something like this work:
Reports
  .Groupby (r => r.Destination)
  .Select(g => new {Destination = g.Key, Answered = g.Sum(u => u.Answered), ...}
  .Distinct();


Hope this helps,
Sushil.


这篇关于Linq中关于Distinct关键字的问题的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆