MySql, Perl, and HTML Update function not working

[adam gruber]

Hello,
I used a guide that I found that was written by Tony Darnell regarding using MySql, Perl, and a little HTML to create, update, and delete database records. Everything works perfectly, except for the UPDATE functionality. Is there anything explicitly wrong with the following lines

$serial = $formdata{'serial'};
$name_first = $formdata{'name_first'};
$name_last = $formdata{'name_last'};
$address_01 = $formdata{'address_01'};
$address_02 = $formdata{'address_02'};
$address_city = $formdata{'address_city'};
$address_state = $formdata{'address_state'};
$address_postal_code = $formdata{'address_postal_code'};

$dbh = ConnectToMySql($Database);

$query = "update address set name_first = '$name_first', name_last = '$name_last', address_01 = '$address_01', address_02', address_city = '$address_city', address_state = '$address_state', address_postal_code = '$address_postal_code' where serial = '$serial'";

$sth = $dbh->prepare($query);

$sth->execute();

$dbh->disconnect;


When I takek out the $serial and enter in a manual value in the $query line, it works. So something is not kosher with having it grab that value on its own. I am a complete MySql and Perl n00b btw, so I apologize right off the bat if i misunderstand something or am missing something easy. Thanks for the help and let me know if you need any other info.