按行号分组的 POWER BI DAX 查询

Question

有人能帮我将sql字符串转换为Dax吗？

row_number() p over (partition by date, customer, type order by day)

行号是我想要的输出结果。

- Akyl

Answer 1

假设你的数据看起来像这个表格:

Sample
+------------+----------+---------+--------+
|    Date    | Customer | Product | Gender |
+------------+----------+---------+--------+
| 01/01/2018 |     1234 | P2      | F      |
| 01/01/2018 |     1234 | P2      | M      |
| 03/01/2018 |     1235 | P1      | F      |
| 03/01/2018 |     1235 | P2      | F      |
+------------+----------+---------+--------+

我创建了一个名为Rank的计算列，使用RANKX和FILTER函数。

计算的第一部分是在FILTER函数的范围之外创建变量。第二部分使用RANKX函数，它接受一个表达式值 - 在这种情况下是性别 - 来排序数值。

Rank = 
VAR _currentdate = 'Sample'[Date]
VAR _customer = 'Sample'[Customer]
var _product = 'Sample'[Product]

return
RANKX(FILTER('Sample',
[Date]=_currentdate &&
[Customer] = _customer &&
[Product] = _product),[Gender],,ASC)

输出结果如下：

我将输出结果与SQL等效语句进行了对比。

select 
*, 
row_number() over(partition by Date,Customer,Product order by Gender) 
from (
select '2018-01-01' as Date,1234 as CUSTOMER,'P2' AS PRODUCT, 'M' Gender union
select '2018-01-01' as Date,1234,'P2','F' UNION
select '2018-01-03' as Date,1235,'P1','F' UNION
  select '2018-01-03' as Date,1235,'P2','F' 
)t1

- Angelo Canepa

---

PARTITION BY 将是您的筛选器，而 ORDER BY 将是表达式。 - Angelo Canepa

这个能用M语言（Power Query）实现吗？ - Andreas