Forms won't do order by after the formula columns or constants in union all

Question

i have a big select as :
select * from
( select .....,id doc_id, '1' op from .....
union all
select ......., id doc_id, '2' op from .....
union all
select ......., id doc_id, '3' op from .....
) order by id, op
where i can have the same id for a number x >1 rows with diffrent values for op.
lets say 5 rows with values id plus 1,2,1,2,3 for op.
In a program unit i have a cursor with this select and i fetch every row and write them in a text file type .csv.
The problems are :
1) it won't do the order by after op ,
i say order by id, op but the result is only ordered after id
... id op
... 1 2
... 1 1
.... 1 2
2)
if i modify the select like this :
select ...., id, op from ---i put the aliases here instead of *
( select .....,id doc_id, '1' op from .....
union all
select ......., id doc_id, '2' op from .....
union all
select ......., id doc_id, '3' op from .....
) order by id, op
in the csv the column op in empty , so i only get the id information
... id op
... 1
... 1
.... 2
Any idea ?
Oh and my screen goes white , the form block sometimes when i have a "difficult "
select but after a while i get the result i wanted (message or csv file)

Answer 1

select * from
( select .....,id doc_id, '1' op from .....
union all
select ......., id doc_id, '2' op from .....
union all
select ......., id doc_id, '3' op from .....
) order by id, op
The problems are :
1) it won't do the order by after op ,
i say order by id, op but the result is only ordered after id
select * from
( select .....,id doc_id, '1' op from .....
union all
select ......., id doc_id, '2' op from .....
union all
select ......., id doc_id, '3' op from .....
) order by 3,4
if[u] id is 3 column positions, and '1' op is 4 column positions in UNION-SELECT
Hope this helps