BigQuery：[CTE 表名称] 缺少数据集，而请求中未设置默认数据集

Question

我的原始表有：(1) acceptance_rate - 字符串，百分比 (2) host_is_superhost - boolean

我想将 (1) acceptance_rate 转换为不带 % 的 integer，因此我创建了一个 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;

新的 CTE 表如下所示：

new_acceptance_rate | 新超级房东

100 | 真的

90 | 真的

95 | 错误的...

接下来，我想创建一个表以将所有 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：

接受范围 | 新超级房东 | superhost_count

1-20 | 真 | 15

1-20 | 假 | 25

...

但相反，我收到了一条错误消息，如下所示：

运行查询时出错 表名“acceptance_rate_cte”缺少数据集，而请求中未设置默认数据集。

Answer 1

我在上面用一些样本数据运行了你的查询，它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。 根据你的错误，虽然我的猜测是你没有在同一个 session 中同时运行 CTE 和查询。当你执行时同时运行。