my $q_billed = qq|SELECT i.parts_id, i.qty ${qtyfactor} AS qty, i.unit, p.unit AS partunit
FROM invoice i
LEFT JOIN parts p ON (i.parts_id = p.id)
my $q_billed = qq|SELECT i.parts_id, i.qty ${qtyfactor} AS qty, i.unit, p.unit AS partunit
FROM invoice i
LEFT JOIN parts p ON (i.parts_id = p.id)
my $h_billed = prepare_query($form, $dbh, $q_billed);
my $q_ordered = qq|SELECT oi.parts_id, oi.qty, oi.unit, p.unit AS partunit
my $h_billed = prepare_query($form, $dbh, $q_billed);
my $q_ordered = qq|SELECT oi.parts_id, oi.qty, oi.unit, p.unit AS partunit