Bigquery 周级别信息答案

【问题标题】：Bigquery Week level infoBigquery 周级别信息
【发布时间】：2016-06-09 15:13:03
【问题描述】：

我有一个查询返回过去 7 天的每日数据。我想知道使用 bigquery 获取过去 4 周每周数据的语法

-周总计

第 1 周 15 第 2 周 20 第 3 周 35

【问题讨论】：

【解决方案1】：

类似的东西：

SELECT 
  YEAR(day) AS year, 
  WEEK(day) AS week, 
  SUM(metric) AS total 
FROM YourTable
WHERE WEEK(CURRENT_DATE()) - WEEK(day) < 4
GROUP BY 1, 2

测试/播放 - 您可以使用以下方法来模拟您的数据

SELECT 
  YEAR(day) AS year, 
  WEEK(day) AS week, 
  SUM(metric) AS total 
FROM (
  SELECT 
    DATE(DATE_ADD(TIMESTAMP('2016-01-01'), pos - 1, "DAY")) AS day, 
    CAST(100 * RAND() AS INTEGER) AS metric
  FROM (
       SELECT ROW_NUMBER() OVER() AS pos, *
       FROM (FLATTEN((
       SELECT SPLIT(RPAD('', 1 + DATEDIFF(TIMESTAMP(CURRENT_DATE()), TIMESTAMP('2016-01-01')), '.'),'') AS h
       FROM (SELECT NULL)),h
  )))
) AS YourTable
WHERE WEEK(CURRENT_DATE()) - WEEK(day) < 4
GROUP BY 1, 2

【讨论】：