Deploy stored procedures manually

Question

Is it possible to deploy .NET stored procedures in 10g manually, without using Oracle Developer Tools and/or Visual Studio 2005?

Answer 1

I am especially interested in writing stored procedures in Microsoft Visual Studio Express Edition. I always get PLS-00378 error.
Sample C#:
using System;
using Oracle.DataAccess.Client;
using Oracle.DataAccess.Types;
namespace SP1 {
public class Class1 {
public static int myfunc() {
int m = 0;
OracleConnection conn = new OracleConnection();
conn.ConnectionString = "context connection=true";
conn.Open();
OracleCommand cmd = new OracleCommand();
cmd.CommandText = "select count(*) from tab";
OracleDataReader rdr = cmd.ExecuteReader();
if (rdr.Read()) {
m = rdr.GetInt32(0);
rdr.Close();
cmd.Dispose();
conn.Close();
return m;
Table creation:
create or replace function myfunc() return number;