id，收入，C

Question

如何使用big-query获取列C（bigquery表的结构是“id”，“收入”）

列C =每行收入的汇总值

id，收入，C

1,5,5 2,3,8 3,1,9 4,2,11 5,0,11

Answer 1

SELECT id, SUM(revenue) AS total_revenue
FROM YourTable
GROUP BY id
ORDER BY id;

如果您还想要所有id值的收入总额，则可以使用GROUP BY ROLLUP。结果为id的行包含所有id的总计：

SELECT id, SUM(revenue) AS total_revenue
FROM YourTable
GROUP BY ROLLUP(id)
ORDER BY id;

编辑：对于累积总和，您可以使用分析函数。在这种情况下，它将是：

SELECT id, SUM(revenue) OVER (ORDER BY id) AS total_revenue
FROM YourTable
ORDER BY id;

Answer 2

下面是BigQuery Standard SQL

#standardSQL
SELECT id, SUM(revenue) OVER(ORDER BY id) AS total_revenue
FROM `project.dataset.yourTable`
ORDER BY id

您可以使用以下虚拟数据来测试/播放

#standardSQL
WITH `project.dataset.yourTable` AS (
  SELECT 1 id, 5 revenue UNION ALL
  SELECT 2, 3 UNION ALL
  SELECT 3, 1 UNION ALL
  SELECT 4, 2 UNION ALL
  SELECT 5, 0 
)
SELECT id, SUM(revenue) OVER(ORDER BY id) AS total_revenue
FROM `project.dataset.yourTable`
ORDER BY id

输出

id  total_revenue    
1   5    
2   8    
3   9    
4   11   
5   11

大查询中的行聚合值

id，收入，C

2 个答案: