如何从 BigQuery 获取基于时间的结果？

Question

我需要获取特定时间范围内的数据。 目前，我只能根据日期获取数据。 如何获取相同日期范围但时间范围为下午 3 点到 5 点的数据？

SELECT
  event_name,
  COUNT(DISTINCT user_pseudo_id) as uniques,
  COUNT(user_pseudo_id) as total
FROM
  `XYZ.analytics_123.events_*`
WHERE
  app_info.install_source = "iTunes"   
  AND (Extract (DATE FROM TIMESTAMP_MICROS( user_first_touch_timestamp )) between "2020-05-20" and 
        "2020-05-20")
  AND (_TABLE_SUFFIX between "20200520" AND "20200520")

GROUP BY
  event_name

Answer 1

您可以使用EXTRACT(HOUR FROM TIMESTAMP_MICROS(user_first_touch_timestamp )) BETWEEN 15 AND 17 ，如下例所示

#standardSQL
SELECT
  event_name,
  COUNT(DISTINCT user_pseudo_id) AS uniques,
  COUNT(user_pseudo_id) AS total
FROM `XYZ.analytics_123.events_*`
WHERE app_info.install_source = "iTunes"   
  AND (EXTRACT (DATE FROM TIMESTAMP_MICROS(user_first_touch_timestamp )) BETWEEN "2020-05-20" AND "2020-05-20")
  AND (_TABLE_SUFFIX BETWEEN "20200520" AND "20200520")
  AND (EXTRACT(HOUR FROM TIMESTAMP_MICROS(user_first_touch_timestamp )) BETWEEN 15 AND 17)
GROUP BY event_name