Selecting From One Table, Inserting Into Another

hi there, i have a page where on my button click i need to select address, pcode from tbl_person where person_id = querystring and update or insert those values into tbl_del where order_ID = querystring 2 below is the code i am using, although im stuck on the sql stringSqlConnection objConnAddy = new SqlConnection(sConnectionStringCustInfo);using (objConnAddy)

{

objConnOID.Open();

// insert values into delivery table, second line updates price + VAT

string sqlAddy = "?????";

SqlCommand objCmdAddy = new SqlCommand(sqlAddy, objConnAddy);

objCmd1.ExecuteNonQuery();

i had a look on the net and here but i cant seem to find exactly what i want, any help would be great!

Cheers Jez