insert into table

 SELECT *
INTO [new_BK]
FROM [old_table]

GetQueryString

  public static string GetQueryString(this object obj)
        {
            var properties = from p in obj.GetType().GetProperties()
                             where p.GetValue(obj, null) != null
                             select p.Name + "=" + HttpUtility.UrlEncode(p.GetValue(obj, null).ToString());

            return String.Join("&", properties.ToArray());
        }