Group By clause causing error

Question

So here is the context : Developping an ASP.NET MVC 4 web app, I have in my database a table ProductAllocations which is composed of 2 foreign keys : one from m

Answer 1

The fields you group by, you need to either use an aggregation sum, max etc or you need to include the columns in the clause, see the following links: SQL Group By & summarizing values

SELECT   p.FirstName
        ,p.LastName
        ,pa.EndDate
        ,pr.PurchaseDate
        ,pr.SerialNumber
        ,pr.CatalogPrice
        ,v.PlateNumber
        ,v.FirstCirculationDate
        ,v.FirstDrivingTax
        ,v.UsualDrivingTax
FROM     bm_ProductAllocations AS pa
INNER JOIN bm_Persons AS p ON pa.Id_Person = p.Id_Person
INNER JOIN bm_Products AS pr ON pa.Id_Product = pr.Id_Product
INNER JOIN bm_Vehicles AS v ON pr.Id_Product = v.Id_Product
GROUP BY pa.Id_Product
        ,p.FirstName
        ,p.LastName
        ,pa.EndDate
        ,pr.PurchaseDate
        ,pr.SerialNumber
        ,pr.CatalogPrice
        ,v.PlateNumber
        ,v.FirstCirculationDate
        ,v.FirstDrivingTax
        ,v.UsualDrivingTax;