Question

im using LINQ to Entities with dotConnect for Oracle and i get an OUTER APPLY is not supported exception with this very simple LINQ query:

from intervenant in Intervenants
select new
{
    intervenant.Code,
    intervenant.Nom,
    Municipalite = intervenant.Adresses.Any() ? intervenant.Adresses.FirstOrDefault().Municipalite : string.Empty,
    CodePostal = intervenant.Adresses.Any() ? intervenant.Adresses.FirstOrDefault().CodePostal : string.Empty
}

How should i build my query to solve this problem?

thank you very much for the help!

UPDATE

I have updated my devArt dotConnect for Oracle provider and it have solved the problem. It doesn’t do the OUTER APPLY anymore for this LINQ query.

BUT i have another problem. This linq query serve a Telerik Grid and the Outer Apply problem came back. Not sure what the Grid do inside but he is doing something that is not supported by the provider.

Answer 1

What happens when you do this?

from intervenant in Intervenants
select new
{
    intervenant.Code,
    intervenant.Nom,
    Municipalite = intervenant.Adresses.FirstOrDefault().Municipalite,
    CodePostal = intervenant.Adresses.FirstOrDefault().CodePostal
}

Can you then nest that inside a LINQ expression that converts the nulls to empty strings?