C#连接oracle数据库

using System;
using System.Data;
using System.Data.OracleClient;

namespace ConnectionToOracle
...{
    class Program
    ...{
        static void Main(string[] args)
        ...{
            OracleBDUtility oracle = new OracleBDUtility();
            oracle.getData();
        }
    }

    public class OracleBDUtility
    ...{
        OracleConnection Conn = new OracleConnection("server=joe;user id=scott;password=tiger");
        public void getData()
        ...{
            Conn.Open();
            OracleCommand cmd = Conn.CreateCommand();
            cmd.CommandText = "select ename,job from scott.emp where job is not null";
            OracleDataReader odr = cmd.ExecuteReader();
            while (odr.Read())
            ...{
                Console.WriteLine("{0}--{1}", odr.GetValue(0), odr.GetValue(1));
            }
            odr.Close();
            Conn.Close();
        }
    }
}