CreateUserWizard Control using Oracle

I am trying to extend the registration page (using this tutorial ) to add more fields to a separate database. 

I am using Oracle and but the code below uses MS SQL hence sqlDataSource... 

Can anyone help me traslate this into oracle? I really don't understand what's going on here. Looks like its inserting a 'UserId' but in which table?? 

protected void CreateUserWizard1_CreatedUser(object sender, EventArgs e)
{
    TextBox UserNameTextBox =  (TextBox)CreateUserWizardStep2.ContentTemplateContainer.FindControl("UserName");
    SqlDataSource DataSource = (SqlDataSource)CreateUserWizardStep2.ContentTemplateContainer.FindControl("InsertExtraInfo");

    MembershipUser User = Membership.GetUser(UserNameTextBox.Text);
    object UserGUID = User.ProviderUserKey;

    DataSource.InsertParameters.Add("UserId", UserGUID.ToString());
    DataSource.Insert();
}

The way I usually insert items into Oracle using ASP.net is this way (below) but the above code don't look anything like it.

DataTable dt = new DataTable();
        using (OracleConnection con = new OracleConnection(connectionString))
        {
            OracleCommand cmd = new OracleCommand();
            string sql = "INSERT INTO UserAddresses (UserId) VALUES (:UserId)";
            cmd.Parameters.AddWithValue("userid", uselbl.text);

            cmd.Connection = con;
            cmd.CommandText = sql;
            con.Open();

            try
            {
                cmd.ExecuteNonQuery();
                ErrorMessage.Text = "Successful!";
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }