Overloaded parameters in PL/SQL packages

Question

Will this driver support calls to packaged stored procedures with overloaded parameters?

Answer 1

Here's a quick and dirty sample:
Database:
create or replace package overload_test as
  function overloaded (p_in in varchar2) return varchar2;
  function overloaded (p_in in number) return varchar2;
end;
create or replace package body overload_test as
  function overloaded (p_in in varchar2) return varchar2 is
  begin
    return 'You called the varchar2 overload with: ' || p_in;
  end;
  function overloaded (p_in number) return varchar2 is
  begin
    return 'You called the number overload with: ' || to_char(p_in);
  end;
end;
/C# code:
using System;
using System.Data;
using Oracle.DataAccess.Client;
using Oracle.DataAccess.Types;
namespace OverloadTest
  class Program
    static void Main(string[] args)
      // connect to local db using o/s authentication
      OracleConnection con = new OracleConnection("User Id=/; Enlist=false; Pooling=false");
      con.Open();
      // create the command object
      OracleCommand cmd = con.CreateCommand();
      cmd.CommandText = "overload_test.overloaded";
      cmd.CommandType = CommandType.StoredProcedure;
      // create the return value parameter
      OracleParameter p_retval = new OracleParameter(":p_retval", OracleDbType.Varchar2, 80, "", ParameterDirection.ReturnValue);
      cmd.Parameters.Add(p_retval);
      // create the input parameter for the number overload
      OracleParameter p_in = new OracleParameter(":p_in", OracleDbType.Decimal, 42, ParameterDirection.Input);
      cmd.Parameters.Add(p_in);
      // call the number overloaded stored proc
      cmd.ExecuteNonQuery();
      // write out the return value
      Console.WriteLine(p_retval.Value);
      // change the input parameter for the varchar2 overload
      p_in.OracleDbType = OracleDbType.Varchar2;
      p_in.Value = "Forty-Two";
      // reset parameters
      cmd.Parameters.Clear();
      cmd.Parameters.Add(p_retval);
      cmd.Parameters.Add(p_in);
      // call the varchar2 overloaded stored proc
      cmd.ExecuteNonQuery();
      // write out the return value
      Console.WriteLine(p_retval.Value);
      // clean up
      p_in.Dispose();
      p_retval.Dispose();
      cmd.Dispose();
      con.Dispose();
      // prevent console window from closing automatically when running from vs env
      Console.WriteLine("ENTER to continue...");
      Console.ReadLine();
}Output on my system:
You called the number overload with: 42
You called the varchar2 overload with: Forty-Two
ENTER to continue...Hope that helps a bit,
Mark