Programming: October 2003 Archives

Teka-teki

| | Comments (2)

Dengan hanya menggunakan statement SQL standar (subselect boleh), bagaimana cara mengubah

tabel ini:
sk8er                                  result
-----------                          -------------
  s  |    t                               s  | r
------------                         ------------
1   |    9                               1  | 5
2   |    6                               2  | 1
3   |    7         menjadi               3  | 2
4   |    8                               4  | 4
5   |    7                               5  | 2
-----------                           ------------
t = time
r = rank
(perhatikan rank 3 tidak ada, karena yg 2 dobel)

Cute riddle :)

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