BigQuery：滚动每日计数访问者的付款摘要

Question

我有这个数据：

date	visitor_id	total_payment
2022-01-01	A	20
2022-01-01	B	15
2022-01-01	C	20
2022-01-02	B	10
2022-01-02	D	25

我想统计 total_payment 等于或大于 20 美元的每日访客人数，话虽如此，我希望的结果是：

date	count_visitor
2022-01-01	2
2022-01-02	4

2022-01-01 是 2，因为只有 A 和 C 的付款超过 20 美元，但是在 2022-01-02 又增加了 2，因为 B 是 35 美元（总和），D 是 25 美元。

是否有任何可能的查询？我希望我的描述很清楚。提前谢谢你。

Answer 1

欢迎@Indri

下面的查询将为您提供每天运行行的总和，其中 total_amount 大于等于 20，我相信这应该会给您想要的答案:

WITH data AS(
  SELECT "2022-01-01" AS date, "A" AS visitor_id, 20 AS total_payment
  UNION ALL
  SELECT "2022-01-01" AS date, "B" AS visitor_id, 15 AS total_payment
  UNION ALL
  SELECT "2022-01-01" AS date, "C" AS visitor_id, 20 AS total_payment
  UNION ALL
  SELECT "2022-01-02" AS date, "A" AS visitor_id, 10 AS total_payment
  UNION ALL
  SELECT "2022-01-02" AS date, "D" AS visitor_id, 25 AS total_payment
)

SELECT
*,
COUNT(*) OVER(ORDER BY date)
FROM data
WHERE total_payment >= 20

Answer 2

您可以使用此查询作为解决方案。首先，我计算每个用户的累计付款。然后，我找到每个用户超过 20$ 累计付款的最短日期。在最后一步，我计算每个最短日期的用户数，并累加该数字。在输出中你不必有 first_day_users 列，但我保留它是为了更容易理解代码。

所以输出看起来像这样：

WITH 
data AS(
  SELECT "2022-01-01" AS date, "A" AS visitor_id, 20 AS total_payment UNION ALL
  SELECT "2022-01-01" AS date, "B" AS visitor_id, 15 AS total_payment UNION ALL
  SELECT "2022-01-01" AS date, "C" AS visitor_id, 20 AS total_payment UNION ALL
  SELECT "2022-01-02" AS date, "B" AS visitor_id, 10 AS total_payment UNION ALL
  SELECT "2022-01-02" AS date, "D" AS visitor_id, 25 AS total_payment
),
user_cumulatives as 
(
    SELECT
        visitor_id,
        date,
        SUM(total_payment) OVER (PARTITION BY visitor_id ORDER BY date) as cumulative_payment
    FROM data
),
user_first_dates as 
(
    select visitor_id, min(date) as date
    from user_cumulatives
    where cumulative_payment >= 20
    group by 1
)
select date, count(*) as first_day_users, sum(count(*)) over (order by date) as count_visitor
from user_first_dates
group by 1
order by date

BigQuery：滚动每日计数访问者的付款摘要

BigQuery: Rolling daily count visitor's summary of payment

sql

google-bigquery