每天最近30天的运行总和

Question

我正在寻找一个查询，该查询每天汇总过去30天（包括当天）的所有潜在客户。

例如...

如果date = 8/1/18，那么我希望总和从7/2/18到8/1/18
如果date = 3/17/20，那么我希望总和从2/17/20到3/17/20

Here is a link to a sheet where the concept is layed out

在此先感谢您的帮助！

Answer 1

以下是BigQuery标准SQL

#standardSQL
SELECT *, 
  SUM(leads) OVER(last_30_days) AS running_sum
FROM `project.dataset.table`
WINDOW last_30_days AS (
  ORDER BY UNIX_DATE(date) RANGE BETWEEN 29 PRECEDING AND CURRENT ROW
)