I can´t select rownum in a query, when inner query contains SDO_ANYINTERACT

Question

I have written a query in Oracle that looks like this:
select ID, NAME, GEOMETRY from
select a.*, rownum as rnm from
select ID, NAME, GEOMETRY from MY_TABLE
where SDO_ANYINTERACT(GEOMETRY, SDO_UTIL.SDO_GEOMETRY('POLYGON ((670000 6268000, 670000 6269000, 700000 6269000, 700000 6268000, 670000 6268000))')) = 'TRUE'
order by NAME asc
) a
where rnm <= 50 and rnm >= 40
The inner query is selecting rows from MY_TABLE using a bounding box. The outer queries are included to enable paging for the results.
For some odd reason this query does not yield any results. If I try and run the subquery:
select ID, NAME, GEOMETRY from MY_TABLE
where SDO_ANYINTERACT(GEOMETRY, SDO_UTIL.SDO_GEOMETRY('POLYGON ((670000 6268000, 670000 6269000, 700000 6269000, 700000 6268000, 670000 6268000))')) = 'TRUE'
order by NAME asc
It yields a list of results as expected. If i run the subquery:
select a.*, rownum as rnm from
select ID, NAME, GEOMETRY from MY_TABLE
where SDO_ANYINTERACT(GEOMETRY, SDO_UTIL.SDO_GEOMETRY('POLYGON ((670000 6268000, 670000 6269000, 700000 6269000, 700000 6268000, 670000 6268000))')) = 'TRUE'
order by NAME asc
) a
the result set is empty. Somehow rownum is preventing the query from yielding any results. If I remove rownum the results are returned as in the innermost query:
select a.* from
select ID, NAME, GEOMETRY from MY_TABLE
where SDO_ANYINTERACT(GEOMETRY, SDO_UTIL.SDO_GEOMETRY('POLYGON ((670000 6268000, 670000 6269000, 700000 6269000, 700000 6268000, 670000 6268000))')) = 'TRUE'
order by NAME asc
) a
What am I doing wrong here?? I am running Oracle 10g..
Edited by: user12456076 on 2010-01-15 06:14

Answer 1

What version of Oracle are you running?
I tried your query on 10.2.0.2 on some data I have and your query works properly.
Though I would shorten the query to:
select ID, NAME, GEOMETRY from
  select rownum as rnm, ID, NAME, GEOMETRY
    from MY_TABLE
   where SDO_ANYINTERACT(GEOMETRY, SDO_UTIL.SDO_GEOMETRY('POLYGON ((470000 5268000, 470000 5269000, 500000 5269000, 500000 5268000, 470000 5268000))')) = 'TRUE'
   order by NAME asc
) a
where rnm <= 50 and rnm >= 40;regards
Simon