Question

This SPROC “returns” a table with two columns: Id, Score.

Is it possible to execute this SPROC and include the custom data-type as parameters from within Entity Framework?

ALTER PROCEDURE [presenta].[SearchLpi] 
    // The presenta.IdTableType is a table with just one column "Id"
    @selectedLpis presenta.IdTableType READONLY
AS
BEGIN
    SET NOCOUNT ON;

    WITH Scores AS(
        SELECT
            ItemId, SUM(Score) AS Score

        FROM [Presenta].[presenta].[LpivScores]

        WHERE
            ListPropertyItemId IN (
                SELECT Id
                FROM @selectedLpis
            )

        GROUP BY
            ItemId
    )
    SELECT
        i.Id,
        s.Score
    FROM
        Scores  s,
        Items   i
    WHERE
        s.ItemId = i.Id

END

If not, is there any other way to get the results of the SPROC and being able to join this result with another LINQ-query?

Answer 1

Here you are better of writing a EF linq query directly against the table. See http://msdn.microsoft.com/en-us/library/bb896341.aspx for an example.

If you must use stored procedures, then there is a way using a table as a return type. You need to create a temporary table with the fields that you return. See: http://blogs.msdn.com/bindeshv/archive/2008/11/20/using-stored-procedures-in-entity-framework.aspx