如果字段与一个或多个文本字符串（单词）完全匹配，我如何在 BigQuery 的 SELECT 中使用 CASE？

Question

我想做的是在另一个字段包含 'Click video' 或 'Click button'

时做某事（然后）

SELECT 
CASE 
WHEN field IS EXACTLY 'Click video' or 'Click button' THEN do something to another field
END

Answer 1

尝试 IF or CASE:

WITH Numbers AS
 (SELECT 10 as A, 20 as B UNION ALL
  SELECT 50, 30 UNION ALL
  SELECT 60, 60)
SELECT
  A, B,
  IF( A<B, 'true', 'false') as result
FROM Numbers


WITH Numbers AS
 (SELECT 90 as A, 2 as B UNION ALL
  SELECT 50, 8 UNION ALL
  SELECT 60, 6 UNION ALL
  SELECT 50, 10)
SELECT A, B,
  CASE A
    WHEN 90 THEN 'red'
    WHEN 50 THEN 'blue'
    ELSE 'green'
  END
  AS result
FROM Numbers


WITH Numbers AS
 (SELECT 90 as A, 2 as B UNION ALL
  SELECT 50, 6 UNION ALL
  SELECT 20, 10)
SELECT A, B,
  CASE
    WHEN A > 60 THEN 'red'
    WHEN A > 30 THEN 'blue'
    ELSE 'green'
  END
  AS result
FROM Numbers

Answer 2

我看到的更简单的方法

SELECT 
CASE 
  WHEN field in ('Click video', 'Click button') 
  THEN do something to another field
END

如果字段与一个或多个文本字符串（单词）完全匹配，我如何在 BigQuery 的 SELECT 中使用 CASE？

How can I use a CASE in a SELECT in BigQuery if a field exactly matches one or more text strings (words)?

select

case

google-bigquery