Hi thanks for the comments, am i ok to add this if statement around the object hash (if a row contains an empty value, use the value from the next col)?

while ($row = $sth->fetchrow_arrayref()) {
        if (defined ($row->[2])){
        
            $objects{$row->[0]}{$row->[1]} = $row->[2];
        }else{
            $objects{$row->[0]}{$row->[1]} = $row->[3];
        }
}
[download]

Thanks