如何在 Bigquery 中创建临时 table

Question

我一直在尝试在以下查询中使用 CREATE TEMPORARY TABLE 和 WITH 语句构建临时 Table。到目前为止，我还没有得到任何积极的结果，我也不知道发生了什么。 在最后一行，错误警报显示：“语法错误：应为“(”或“,”或关键字 SELECT，但在 [28:62] 处结束了脚本”

WITH analysis_fall_2021_season AS
(SELECT
start_station_name,
end_station_name,
EXTRACT (DATE FROM started_at) AS start_date,
EXTRACT (DATE FROM ended_at) AS end_date, 
EXTRACT (TIME FROM started_at) AS start_time,
EXTRACT (TIME FROM ended_at) AS end_time,
DATETIME_DIFF (ended_at,started_at, MINUTE) AS total_lenght,
member_casual
FROM 
(SELECT
fall_analysis.ride_id, 
fall_analysis.started_at, 
fall_analysis.ended_at, 
fall_analysis.start_station_name, 
fall_analysis.end_station_name, 
fall_analysis.member_casual
FROM 
`ciclystic.cyclistic_seasonal_analysis.fall_202010` AS fall_analysis
INNER JOIN 
`ciclystic.cyclistic_seasonal_analysis.fall_202011` AS fall_202011
ON 
fall_analysis.member_casual = fall_202011.member_casual
INNER JOIN 
`ciclystic.cyclistic_seasonal_analysis.fall_202012` AS fall_202012
ON 
fall_analysis.member_casual = fall_202012.member_casual))

Answer 1

正如@Paul 所建议的，您收到此错误是因为 CTE（即 WITH 语句）只是查询的一部分。它后面需要跟另一个语句，通常是 SELECT。您也可以参考此Whosebug question，其中讨论了相同的错误。

您可以试试下面我修改过的代码来解决错误。

WITH analysis_fall_2021_season AS
(SELECT
start_station_name,
end_station_name,
EXTRACT (DATE FROM started_at) AS start_date,
EXTRACT (DATE FROM ended_at) AS end_date,
EXTRACT (TIME FROM started_at) AS start_time,
EXTRACT (TIME FROM ended_at) AS end_time,
DATETIME_DIFF (ended_at,started_at, MINUTE) AS total_lenght,
member_casual
FROM
(SELECT
fall_analysis.ride_id,
fall_analysis.started_at,
fall_analysis.ended_at,
fall_analysis.start_station_name,
fall_analysis.end_station_name,
fall_analysis.member_casual
FROM
`ciclystic.cyclistic_seasonal_analysis.fall_202010` AS fall_analysis
INNER JOIN
`ciclystic.cyclistic_seasonal_analysis.fall_202011` AS fall_202011
ON
fall_analysis.member_casual = fall_202011.member_casual
INNER JOIN
`ciclystic.cyclistic_seasonal_analysis.fall_202012` AS fall_202012
ON
fall_analysis.member_casual = fall_202012.member_casual)
)
SELECT * FROM analysis_fall_2021_season;