Try This


Select , from table
where
rownum <=10
minus
Select , from table
where
rownum <=0

And keep changing the rownum variable and manage the output of the row,,,
something like this

Select , from table
where
rownum <=:variable1
minus
Select , from table
where
rownum <=:variable2

o to 10
10 to 20

etc..
etc..