Kind of sequential query

Question

Hello folks,
my requirement is: Given a number N (let's say 7 for this example) generate a query with following output:
SELECT A,B FROM some_query
A  B
1  7
1  7
1  7
1  7
1  7
1  7
1  7
2  6
2  6
2  6
2  6
2  6
2  6
3  5
3  5
3  5
3  5
3  5
4  4
4  4
4  4
4  4
5  3
5  3
5  3
6  2
6  2
7  1
28 rows selected.Any ideas?

Answer 1

SQL> SELECT t3.i, t3.k, t3.j
  2    FROM (SELECT t1.i, t1.k, t2.j, trunc((rownum - 1) / 7) + 1 d, rownum r
  3            FROM (SELECT LEVEL i, 8 - LEVEL k FROM dual CONNECT BY LEVEL < 8) t1
  4                ,(SELECT LEVEL j FROM dual CONNECT BY LEVEL < 8) t2) t3
  5   WHERE t3.i + t3.r <= (7 * t3.d) + 1;
         I          K          J
         1          7          1
         1          7          2
         1          7          3
         1          7          4
         1          7          5
         1          7          6
         1          7          7
         2          6          1
         2          6          2
         2          6          3
         2          6          4
         2          6          5
         2          6          6
         3          5          1
         3          5          2
         3          5          3
         3          5          4
         3          5          5
         4          4          1
         4          4          2
         4          4          3
         4          4          4
         5          3          1
         5          3          2
         5          3          3
         6          2          1
         6          2          2
         7          1          1
28 rows selected
SQL>
SELECT t3.i, t3.k, t3.j
  FROM (SELECT t1.i, t1.k, t2.j, trunc((rownum - 1) / :base_number) + 1 d, rownum r
          FROM (SELECT LEVEL i, :base_number + 1 - LEVEL k FROM dual CONNECT BY LEVEL < :base_number + 1) t1
              ,(SELECT LEVEL j FROM dual CONNECT BY LEVEL < :base_number + 1) t2) t3
WHERE t3.i + t3.r <= ( :base_number * t3.d) + 1;