在 Google Data studio/Looker Studio 中获取 ISO 周数的结束日期

Question

I google data studio, I have a field called week that contains the week number the value is string 'Week 2' for example. How can I extract the last day of the week based on the week number. In this case I want to get 2023-01-14 which is the last day of week 2?

Answer 1

Have you tried the last_day function?

I would build from the using the date using last_day, because from the week number it would require a bit more code.

SELECT *, 
  LAST_DAY(today, WEEK) AS last_day_of_week, 
  EXTRACT(WEEK FROM today) AS week_number

FROM (SELECT CURRENT_DATE() AS today)

But if you need to go with just the week number, I recommend taking a look into this other question How to create date based on year, week number and day in bigquery .