my @query_ids = (5,4,3,2,1);
my $sql = q/select rec_data from foo where id in (/ . join ",", ("?") x @query_ids .q/) order by id/; print $sql;'
select rec_data from foo where id in (?????) order by id
my $results = $dbh->selectall_arrayref($sql, undef, @query_ids);