cdherold - execute () passes data that you want in any placeholders, e.g.:

$sth = $dbh->prepare ('SELECT * FROM users WHERE id = ?');
$sth->execute ($my_id);
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What you're looking for is $sth->fetchrow_array (), or some other variant. You can also use the 'latest' additions to DBI to grab the lot, with a $sth->fetchall_arrayref ()