需要使用 Kusto 查询语言 (KQl) 实现以下输出

Question

示例数据。我们预计每天都会收到总数量的产品。

TimeStamp	Product Desc	Product Code	Available count
2022-01-02T09:00:00Z	Berries	111	10
2022-01-02T09:00:00Z	Chocolate	222	20
2022-01-02T09:00:00Z	Mayo	333	30
2022-01-03T09:00:00Z	Berries	111	15
2022-01-03T09:00:00Z	Chocolate	222	22
2022-01-04T09:00:00Z	Berries	111	30

如果那天没有收到产品，我必须将最后收到产品的日期显示为当天。

TimeStamp	Product Desc	Product Code	Available count
2022-01-03T09:00:00Z	Berries	111	15
2022-01-03T09:00:00Z	Chocolate	222	22
2022-01-03T09:00:00Z	Mayo	333	30
2022-01-04T09:00:00Z	Berries	111	30
2022-01-04T09:00:00Z	Chocolate	222	22
2022-01-04T09:00:00Z	Mayo	333	30

Answer 1

datatable (['TimeStamp']:datetime,['Product Desc']:string,['Product Code']:int,['Available count']:int)
[
     '2022-01-02T09:00:00Z' ,'Berries'   ,111 ,10
    ,'2022-01-02T09:00:00Z' ,'Chocolate' ,222 ,20
    ,'2022-01-02T09:00:00Z' ,'Mayo'      ,333 ,30
    ,'2022-01-03T09:00:00Z' ,'Berries'   ,111 ,15
    ,'2022-01-03T09:00:00Z' ,'Chocolate' ,222 ,22
    ,'2022-01-04T09:00:00Z' ,'Berries'   ,111 ,30
]
| summarize arg_max(['TimeStamp'], *) by ['Product Code']

Product Code	TimeStamp	Product Desc	Available count
333	2022-01-02T09:00:00Z	Mayo	30
222	2022-01-03T09:00:00Z	Chocolate	22
111	2022-01-04T09:00:00Z	Berries	30

Fiddle

需要使用 Kusto 查询语言 (KQl) 实现以下输出

Need to achieve the below output using Kusto Query language(KQl)

kql

azure-data-explorer

askql