Complexe query

I need some help with a query that is a bit complex. Given the following table:
Nrcrt Name Medie
1     John 8,25     
2     Wu 3,25
3     Abe 4,55     
4     Willard 6,15     
5     Khamis 8,75     
6     Ash 9,85     
7     Horace 10     
8     Mada 6,30     
9     Isla 3
10     Kham 9.90     
Now I want to select all the data from this table, order by medie, then separate it into groups of 2, it should look something like:
select * from tablename order by medie
but I don't know how to separate it by groups of 2, so it would look something like:
7 Horace 10
10 Kham 9.90
6 Ash 9.85
5 Khamis 8.75
1 John 8.25
8 Mada 6.30
and so on for the rest of the data... any help would be appreciated

Hi,
Adrian87 wrote:
@*Frank Kulash*, thanks a lot, exactly what I needed. But I have one more request, if it can be done. It does the grouping in 2, but can I add a generic title for each group? I mean for first group is GROUP 1, then second GROUP 2, and this must be done by the query itself (I refer to the index 1,2,3 and so on)Sure, the column called grp has the values 1, 2, 3, ....
You can use
'GROUP ' || grpto transform that into 'GROUP 1', 'GROUP 2', ...
For example:
WITH     got_r_num     AS
     SELECT     nrcrt, name, medie
     ,            ROW_NUMBER () OVER (ORDER BY medie     DESC)     AS r_num
     ,     CEIL ( ROW_NUMBER () OVER (ORDER BY medie     DESC)
               / 2
               )                                   AS grp
     FROM     t
--     WHERE     ...     -- any filtering goes here
SELECT    nrcrt, name, medie
,       CASE
          WHEN  MOD (r_num, 2)     = 1
          THEN  'GROUP ' || grp
       END     AS label
FROM       got_r_num
GROUP BY  GROUPING SETS (
                            (nrcrt, name, medie, r_num, grp)
               , (grp)
ORDER BY  grp
,            r_num
;With the sample data Sudhakar posted, this produces:
.    NRCRT NAME         MEDIE LABEL
         7 Horace          10 GROUP 1
        10 Kham           9.9
         6 Ash           9.85 GROUP 2
         5 Khamis        8.75
         1 John          8.25 GROUP 3
         8 Mada           6.3
         4 Willard       6.15 GROUP 4
         3 Abe           4.55
         2 Wu            3.25 GROUP 5
         9 Isla             3
15 rows selected.

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