我有一个问题,我需要按另一个组或字段对一个组进行排序,但是遇到了一些问题,我想出了一个解决方案。
示例数据:库存编号、销售日期、售价、销售数量。
red ball, 10/12/16, $13.33, 4
red ball, 10/11/16, $13.33, 12
red ball, 10/11/16, $12.99, 25
red ball, 10/11/16, $13.33, 2
red ball, 10/15/16, $13.33, 4
green ball, 10/15/16, $12.99, 4
green ball, 10/10/16, $12.99, 1
green ball, 10/10/16, $13.99, 8
green ball, 10/12/16, $12.99, 2
green ball, 10/12/16, $12.99, 3
我让他们按项目分组,但按日期分组和压制杀死任何价格变化,而按价格分组并不会在上升日期对它们进行排序。
结果数据应该如下所示:
red ball
10/11/16, $13.33, 14
10/11/16, $12.99, 25
10/12/16, $13.33, 4
10/15/16, $13.33, 4
green ball
10/10/16, $12.99, 1
10/10/16, $13.99, 8
10/12/16, $12.99, 5
10/15/16, $12.99, 4
发布于 2016-10-27 13:11:18
(无须压制)
https://stackoverflow.com/questions/40284902
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