syntax - 在 Google BigQuery 中的示例数据集上运行 JOINT

Question

我正在评估 Google BigQuery 平台与 SQL Server 的比较，以分析我的网站数据。我试图对他们提供的示例数据集运行以下查询，但我不确定为什么会收到错误

(SELECT corpus, sum(word_count) AS wordcount 
FROM publicdata:samples.shakespeare GROUP BY corpus) as set1
join
(SELECT corpus as corpus2, sum(word_count) AS wordcount2
FROM publicdata:samples.shakespeare where corpus = 'hamlet' GROUP BY corpus ) as set2
on set1.wordcount = set2.wordcount2;

错误:

Encountered " "AS" "as "" at line 2, column 78. Was expecting: EOF

有人有想法吗？

提前致谢 希尔皮

Answer 1

您错过了选定的短语...

select * from 
(SELECT corpus, sum(word_count) AS wordcount 
 FROM publicdata:samples.shakespeare 
 GROUP BY corpus) as set1 
join 
(SELECT corpus as corpus2, sum(word_count) AS wordcount2 
 FROM publicdata:samples.shakespeare where corpus = 'hamlet' 
 GROUP BY corpus ) as set2 
 on set1.wordcount = set2.wordcount2;