Question

我想知道是否可以在BigQuery中对记录进行分类。

例如;

number - site - visits
1-A-10
2-B-20

我想要使用站点A和B并创建一个组呼“汽车”。有人可以告诉我这是怎么做的吗？

Answer 1

根据您对问题的评论，以下是我能想到的最佳方法希望这是你要求的

SELECT
  CASE 
    WHEN site IN ('A', 'B') 
    THEN 'Cars' 
    ELSE 'Others' 
  END AS category,
  SUM(visits) AS visits
FROM
  (SELECT 1 AS number, 'A' AS site, 10 AS visits),
  (SELECT 2 AS number, 'B' AS site, 20 AS visits),
  (SELECT 3 AS number, 'C' AS site, 50 AS visits)
GROUP BY 1

添加了CASE WHEN声明

的示例

CASE 
  WHEN (Medium = "A" and source = "facebook.com" ) THEN 'Social' 
  WHEN (Medium = "B" and source = "facebook.com" ) THEN 'PaidSocial' 
END as Category

在BigQuery中对记录进行分类

1 个答案: