But unless you nest the 2 loops if this query returns multiple IDs

my $feed_table_ext_idcode = $dbh2->prepare(
    "SELECT id_code
     FROM $feed_table WHERE entry_time >= ?");
$feed_table_ext_idcode->execute($time);
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then only records with the last ID will be selected/inserted in the second loop because the records with the other IDs will have been discarded in the first select loop.

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