my $feed_table_ext_idcode = $dbh2->prepare(
    "SELECT id_code
     FROM $feed_table WHERE entry_time >= ?");
$feed_table_ext_idcode->execute($time);

##</code><code>##

while (my @row = $feed_table_ext_idcode->fetchrow_array())
{
  #print "@row\n";
  $feed_table_ext_results->execute(@row);
}