Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
860 views
in Technique[技术] by (71.8m points)

google bigquery - Referencing other columns in a SQL SELECT

I have a SQL query in BigQuery:

SELECT
  creator.country,
  (SUM(length) / 60) AS total_minutes,
  COUNT(DISTINCT creator.id) AS total_users,
  (SUM(length) / 60 / COUNT(DISTINCT creator.id)) AS minutes_per_user
FROM
  ...

You may have noticed that the last column is equivalent to total_minutes / total_users.

I tried this, but it doesn't work:

SELECT
  creator.country,
  (SUM(length) / 60) AS total_minutes,
  COUNT(DISTINCT creator.id) AS total_users,
  (total_minutes / total_users) AS minutes_per_user
FROM
  ...

Is there any way to make this simpler?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)
Waitting for answers

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...