LINQ GROUP BY and MAX ()
I'm trying to figure out how to write a SQL clause in LINQ, but I can't find a way to do it yet, this is the SQL command:
SELECT cs.Site_Name, MAX(ed.EffectiveDate_Date)
FROM [WAPMaster].[Factsheets].[EffectiveDate] ed,
[WAPMaster].[Configuration].[Site] cs
WHERE cs.Site_Id = ed.EffectiveDate_SiteId
GROUP BY cs.Site_Name
Can someone help me with linq syntax please?
** I am trying this so far (thanks to levanlevi)
var test = (from e in this._wapDatabase.EffectiveDates
join c in this._wapDatabase.Sites
on c.Site_Id equals e.EffectiveDate_SiteId
group e by c.Site_Name into r
select new
{
r.Key.SiteName,
EffectiveDate = r.Max(d => d.EffectiveDate_Date)
});
But I am getting the following error:
+3
source to share
2 answers
SELECT cs.Site_Name ,
MAX(ed.EffectiveDate_Date)
FROM [WAPMaster].[Factsheets].[EffectiveDate] ed ,
[WAPMaster].[Configuration].[Site] cs
WHERE cs.Site_Id = ed.EffectiveDate_SiteId
GROUP BY cs.Site_Name
from e in WAPMaster.Factsheets.EffectiveDate
join c in WAPMaster.Configuration.Site
on c.Site_Id equals e.EffectiveDate_SiteId
group e by c.Site_Name into r
select new { SiteName = r.Key, EffectiveDate = r.Max(d=>d.EffectiveDate_Date)}
+10
source to share
var test = (from effectiveDates in this._wapDatabase.EffectiveDates
from sites in this._wapDatabase.Sites
where sites.Site_Id = effectiveDates.EffectiveDate_SiteId
group effectiveDates by sites.Site_Id into g
select new { siteId = g.key , effectiveDate = g.max(ed => ed.EffectiveDate_Date)});
+1
source to share