Sql Query to EF Linq Expression - sql

Question

Can anybody help with this sql Query to tranform it to EF Linq Expression?
SELECT Aitimata.id, AST.dateCr, AST.StatusId, Aitimata.UniqueCode, Aitimata.CategoryId, Aitimata.Thema
FROM Aitimata INNER JOIN
(select a.* from AitimataStatus a join
(select AitimaId, max(dateCr) AS dateCr
from AitimataStatus
group by AitimaId) b
on a.AitimaId = b.AitimaId and a.dateCr = b.dateCr)as AST ON Aitimata.id = AST.AitimaId
The important is this subquery
select a.* from AitimataStatus a join
(select AitimaId, max(dateCr) AS dateCr
from AitimataStatus
group by AitimaId) b
on a.AitimaId = b.AitimaId and a.dateCr = b.dateCr
you need extra info?
Thanks

Answer 1

It'll be something like this:
from a in AitimataStatus
let b = from as in AitimataStatus group by and other stuff and then select
join b on a.** equals b.**

Answer 2

Here is my solution
Dim sub1 = From aitst In context.AitimataStatus
Join aitst2 In (From aitst2 In context.AitimataStatus
Group aitst2 By cid = aitst2.AitimaId Into g = Group
Select New With {.AitimaId = cid, .dateCr = g.Max(Function(ddd) (ddd.dateCr))}
)
On aitst2.AitimaId Equals aitst.AitimaId And aitst2.dateCr Equals aitst.dateCr
Select aitst
it produce
SELECT
[Extent1].[id] AS [id],
[Extent1].[dateCr] AS [dateCr],
[Extent1].[UserId] AS [UserId],
[Extent1].[AitimaId] AS [AitimaId],
[Extent1].[StatusId] AS [StatusId]
FROM [dbo].[AitimataStatus] AS [Extent1]
INNER JOIN (SELECT
[Extent2].[AitimaId] AS [K1],
MAX([Extent2].[dateCr]) AS [A1]
FROM [dbo].[AitimataStatus] AS [Extent2]
GROUP BY [Extent2].[AitimaId] ) AS [GroupBy1] ON (([Extent1].[AitimaId] = [GroupBy1].[K1]) OR (([Extent1].[AitimaId] IS NULL) AND ([GroupBy1].[K1] IS NULL))) AND (([Extent1].[dateCr] = [GroupBy1].[A1]) OR (([Extent1].[dateCr] IS NULL) AND ([GroupBy1].[A1] IS NULL)))
.