ExecuteSqlCommand with output parameter

Question

I\'m using Entity Framework in an ASP.NET MVC3 application and I\'m trying to use the following code:

var token = \"\";
this.Database.ExecuteSqlCommand(\"exe         


        

Answer 1

Below is what I do for Oracle using the DevArt driver. I have a package.proc called P_SID.SID_PGet that returns a single string value. The proc is:

PROCEDURE SID_PGet(io_SID OUT varchar2) is
Begin
   io_SID:=GetSID; -- GetSID just goes off and gets the actual value
End;

Below is how I call it and retrieve the SID value (I'm using this with EF 4.1 code first and this method is in the DbContext):

/// 

/// Get the next SID value from the database
/// 
/// String in X12345 format
public string GetNextSId()
{
    var parameter = new Devart.Data.Oracle.OracleParameter("io_SID", Devart.Data.Oracle.OracleDbType.VarChar, ParameterDirection.Output);
    this.Database.ExecuteSqlCommand("BEGIN P_SID.SID_PGet(:io_SID); END;", parameter);
    var sid = parameter.Value as string;

    return sid;
}