ADO Net C# Tutorial

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.OracleClient;
public class MainClass
{
    public static void Main()
    {
        OracleConnection oraConn = new OracleConnection();
        string connString = "User Id=oranetuser; Password=demo; Data Source=oranet";
        if (oraConn.State != ConnectionState.Open)
        {
            try
            {
                oraConn.ConnectionString = connString;
                oraConn.Open();
                MessageBox.Show(oraConn.ConnectionString, "Successful Connection");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Exception Caught");
            }
        }
        if (oraConn.State == ConnectionState.Open)
        {
            string sqlInsert = "insert into PlayerTable (player_num, last_name, first_name, position, club) ";
            sqlInsert += "values (:p_num, :p_last, :p_first, :p_pos, :p_club)";
            OracleCommand cmdInsert = new OracleCommand();
            cmdInsert.CommandText = sqlInsert;
            cmdInsert.Connection = oraConn;
            OracleParameter pPlayerNum = new OracleParameter();
            pPlayerNum.DbType = DbType.Decimal;
            pPlayerNum.Value = 10;
            pPlayerNum.ParameterName = "p_num";
            OracleParameter pLastName = new OracleParameter();
            pLastName.Value = "Last";
            pLastName.ParameterName = "p_last";
            OracleParameter pFirstName = new OracleParameter();
            pFirstName.Value = "FirstName";
            pFirstName.ParameterName = "p_first";
            OracleParameter pPosition = new OracleParameter();
            pPosition.Value = "A";
            pPosition.ParameterName = "p_pos";
            OracleParameter pClub = new OracleParameter();
            pClub.Value = "abc";
            pClub.ParameterName = "p_club";
            cmdInsert.Parameters.Add(pPlayerNum);
            cmdInsert.Parameters.Add(pLastName);
            cmdInsert.Parameters.Add(pFirstName);
            cmdInsert.Parameters.Add(pPosition);
            cmdInsert.Parameters.Add(pClub);
            cmdInsert.ExecuteNonQuery();
            cmdInsert.Dispose();
        }
    }
}