说我有下表,叫做revenues.
id | revenue
------------
1 | 345
2 | 5673
3 | 0
4 | 45
5 | 4134
6 | 35
7 | 533
8 | 856
9 | 636
10 | 35
我想找到连续3值分组的最大总和.这就是我的意思:
ids 1 + 2 + 3 => 345 + 5673 + 0 = 6018
ids 2 + 3 + 4 => 5673 + 0 + 45 = 5718
ids 3 + 4 + 5 => 0 + 45 + 4134 = 4179 …