跟踪 Google 分析数据中点击之间的时间差异

Question

所以我在 BigQuery 上使用 Google Analytics 数据，并希望能够跟踪点击之间的差异，按我拥有的可以在会话中更改的自定义维度分组。如果我的数据看起来像

__________________________
| customDimension1 | Time |
|__________________|______|
| abc              |  t1  |
| abc              |  t2  |
| def              |  t3  |
| def              |  t4  |
| def              |  t5  |
| abc              |  t6  |
| abc              |  t7  |
|__________________|______|

我希望能够得到类似

的东西

_______________________________________
| customDimension1 | Time | Difference |
|__________________|______|____________|
| abc              |  t1  |  t2 - t1   |
| abc              |  t2  |  t3 - t2   |
| def              |  t3  |  t4 - t3   |
| def              |  t4  |  t5 - t4   |
| def              |  t5  |  t6 - t5   |
| abc              |  t6  |  t7 - t6   |
| abc              |  t7  |      0     |
|__________________|______|____________|

关于如何在不经过 Dataflow/Dataproc 转换的情况下执行此操作的好主意？

Answer 1

以下适用于 BigQuery 标准 SQL（并假设时间列为 TIMESTAMP 数据类型）

#standardSQL
SELECT *, 
  TIMESTAMP_DIFF(IFNULL(LEAD(Time) OVER(ORDER BY Time), Time), Time, SECOND) AS Difference 
FROM `project.dataset.table`

你可以像下面的例子一样使用虚拟数据来测试和玩上面的游戏

#standardSQL
WITH `project.dataset.table` AS (
  SELECT 'abc' customDimension1, TIMESTAMP '2020-08-26 23:03:21.938228 UTC' Time UNION ALL
  SELECT 'abc', '2020-08-26 23:03:23.938228 UTC' UNION ALL
  SELECT 'def', '2020-08-26 23:03:26.938228 UTC' UNION ALL
  SELECT 'def', '2020-08-26 23:03:28.938228 UTC' UNION ALL
  SELECT 'def', '2020-08-26 23:03:41.938228 UTC' UNION ALL
  SELECT 'abc', '2020-08-26 23:03:51.938228 UTC' UNION ALL
  SELECT 'abc', '2020-08-26 23:03:55.938228 UTC' 
)
SELECT *, 
  TIMESTAMP_DIFF(IFNULL(LEAD(Time) OVER(ORDER BY Time), Time), Time, SECOND) AS Difference 
FROM `project.dataset.table`

有输出

Row customDimension1    Time                            Difference   
1   abc                 2020-08-26 23:03:21.938228 UTC  2    
2   abc                 2020-08-26 23:03:23.938228 UTC  3    
3   def                 2020-08-26 23:03:26.938228 UTC  2    
4   def                 2020-08-26 23:03:28.938228 UTC  13   
5   def                 2020-08-26 23:03:41.938228 UTC  10   
6   abc                 2020-08-26 23:03:51.938228 UTC  4    
7   abc                 2020-08-26 23:03:55.938228 UTC  0

跟踪 Google 分析数据中点击之间的时间差异

Tracking Differences of Times Between Hits in Google Analytics Data

sql

google-analytics

google-bigquery