BigQuery：[CTE Table 名称] 缺少数据集，而请求中未设置默认数据集

Question

我原来的 table 有： (1) acceptance_rate - 字符串，百分比 (2) host_is_superhost - 布尔值

我想将 (1) acceptance_rate 转换为没有 % 的整数，所以我创建了一个 CTE，如下所示：

WITH acceptance_rate_cte AS 
(SELECT 
    CAST(REPLACE(acceptance_rate,'%',"") AS int) AS new_acceptance_rate, 
    host_is_superhost AS new_superhost
FROM table1
WHERE acceptance_rate NOT IN ("N/A","0%")
ORDER BY new_acceptance_rate DESC)

SELECT new_acceptance_rate, new_superhost
FROM acceptance_rate_cte;

新 CTE table 看起来像：

new_acceptance_rate | new_superhost

100 |真

90 |真

95 |错误的 ...

下一步，我想创建一个 table 以将所有 new_acceptance_rate 分组到 20 个桶中，然后计算这些桶中有多少 true 或 false。所以我这样做了：

SELECT CASE WHEN new_acceptance_rate >0 AND  new_acceptance_rate <= 20 then '1-20'
     WHEN new_acceptance_rate >20 AND new_acceptance_rate <=40 then '21-40'
     WHEN new_acceptance_rate >40 AND new_acceptance_rate<=60 THEN '41-60'
     WHEN new_acceptance_rate >60 AND new_acceptance_rate <=80 THEN '61-80'  
     ELSE 'Above 80'
     END acceptance_range,
     new_superhost,
     count(*) as superhost_count
FROM acceptance_rate_cte

我对结果的期望是这样的：

acceptance_range | new_superhost | superhost_count

1-20 |真 | 15

1-20 |假 | 25

...

但是我收到如下错误消息：

Error running query Table name "acceptance_rate_cte" missing dataset while no default dataset is set in the request.

Answer 1

我运行你上面的查询和一些示例数据似乎大部分是正确的。

with acceptance_rate_cte AS 
(   SELECT 
    CAST(REPLACE(acceptance_rate,'%',"") AS int) AS new_acceptance_rate, 
    host_is_superhost AS new_superhost
    FROM table1
    WHERE acceptance_rate NOT IN ("N/A","0%")
    ORDER BY new_acceptance_rate DESC
)
SELECT CASE WHEN new_acceptance_rate >0 AND  new_acceptance_rate <= 20 then '1-20'
     WHEN new_acceptance_rate >20 AND new_acceptance_rate <=40 then '21-40'
     WHEN new_acceptance_rate >40 AND new_acceptance_rate<=60 THEN '41-60'
     WHEN new_acceptance_rate >60 AND new_acceptance_rate <=80 THEN '61-80'  
     ELSE 'Above 80'
     END acceptance_range,  
     new_superhost,
     count(*) as superhost_count
FROM acceptance_rate_cte
GROUP BY acceptance_range, new_superhost;

我确实必须添加一个分组依据才能使其正确执行。根据您的错误，尽管我猜测您没有运行在同一会话中同时使用 CTE 和查询。当你同时执行运行时。

BigQuery：[CTE Table 名称] 缺少数据集，而请求中未设置默认数据集

BigQuery: [CTE Table name] missing dataset while no default dataset is set in the request

sql

google-bigquery