Rollup/Cube Operation in Oracle 10g

Question

I'm using Oracle 10g as my database.
Suppose I have a table that has data:
ID SEMESTER SUBJECT MARKS
9 4 Maths 50
9 4 Science 45
9 4 English 42
10 5 Maths 56
10 5 History 23
Now the output should look like this
ID SEMESTER SUBJECT MARKS RANK
9 4 Maths 50
Science 45
English 42
Total 137 1
10 5 Maths 56
History 23
Total 79 2
Can anybody please help me out.
Thanx in advance

Answer 1

Select * from tmp_sp_marks
SEMESTER     SUBJECT     MARKS          STUDID
3          Maths          40          8
3          English     52          8
3          ujarati          40          8
4          Science     45          9
4          English     42          9
5          Maths          43          10
5          English     44          10
4          Maths          50          9
select case when rn = 1 then studid else null end studid,
case when rn = 1 then semester else null end semester,
subject,
marks,
case when subject = 'Total' then rank else null end rank
from
select studid, semester, subject, marks, max(rank) over(partition by studid, semester) rank,
row_number() over(partition by studid, semester order by marks) rn
from
select studid, semester, subject, marks, 0 rank from tmp_sp_marks a
union
select studid, semester, 'Total', sm, dense_rank() over(order by sm desc) rank
from (
select studid, semester, sum(marks) sm
from tmp_sp_marks
group by rollup(studid, semester) )
where studid is not null and semester is not null
order by max(rank) over(partition by studid, semester) desc , marks asc
OUTPUT:
STUDID     SEMESTER     SUBJECT     MARKS          RANK
8          3     Maths     40     
               Gujarati     40     
          English     52     
          Total     132          2
9          4     English     42     
          Science     45     
          Maths     50     
          Total     137          1
10          5     Maths     43     
          English     44     
          Total     87          3