Answer by bonskijr

You could try using the SqlQuery method of the DBContext and explicitly use the correct type. string query = "SELECT [GroupBy1].[A1] AS [C1] FROM ( SELECT COUNT(1) AS [A1] FROM dbo.Table1 AS [Extent1] WHERE ( NOT (([Extent1].[Col1] IS NULL) OR ((LEN([Extent1].[Col1])) = 0))) AND (''0'' [Extent1].[Col1]) AND ([Extent1].[dt] = @p__linq__0) AND ((UPPER([Extent1].[CC])) = (UPPER(@p__linq__1))) AND (( CAST(CHARINDEX(LOWER(@p__linq__2), LOWER([Extent1].[ES])) AS int)) = 1) ) AS [GroupBy1]"; var param1 = new SqlParameter("@p__linq__0", System.Data.SqlDbType.Date); var param2 = new SqlParameter("@p__linq__1", System.Data.SqlDbType.Varchar, 100); var param3 = new SqlParameter("@p__linq__2", System.Data.SqlDbType.Varchar, 100); param1.Value = new DateTime(2013, 09, 30); param2.Value = "no"; param3.Value = "S1"; var res = ctx.YourEntity.SqlQuery(query, param1, param2, param3).ToList(); Sucks to not able to specify in the model itself as linq looks to ignore those, at least with the datetime. HTH