鮮明我有一個問題,這個查詢在LINQ格式轉換:在LINQ
select Version, count(distinct(idUser)) from HistoUsers
group by Version
什麼我到目前爲止是這樣的:
public static List<VersionsUsed> GetNumberOfCompaniesUsingEachVersions2()
{
var foundUsers = (from hu in sdt.DataContext.HistoUsers
group hu by new { hu.Version, hu.IdUser } into g
select new VersionsUsed { nameVersion = g.Key.Version, NumberOfCompaniesUsingThisVersion = g.Count((g.Key.IdUser).distinct()) });
return foundUsers.ToList();
}
看來我有不同的語法問題() 任何人都可以幫助我嗎? 由於事先
檢查這個http://blogs.msdn.com/b/charlie/archive/2006/11/19/linq-farm-group-and-distinct.aspx – AnarchistGeek 2012-02-13 10:12:57
這是類似問題http://stackoverflow.com/questions/2786750/how-to-get-particular-column-distinct-in-linq-to-sql – AnarchistGeek 2012-02-13 10:13:36
如果你正在談論的SQL版本,它可以完美地與SQL服務器,對我來說沒有問題 – Slrg 2012-02-13 10:14:21