Question

我想使用table_query（）查询这些表。如何查询日期范围为2017-03-22至2017-03-24的所有表格我的BQ表的格式是（auctions_other_YYYYMMDDHHM）
BQ表如下：

1.auctions_other_20170322104
  2.auctions_other_20170322105
  3.auctions_other_20170323206
  4.auctions_other_20170323207
  5.auctions_other_20170324108
  6.auctions_other_20170324209

我正在使用查询：

SELECT  * FROM
TABLE_QUERY(chocolate_raw, "table_id contains 'auctions_others_' and
table_id contains '20170322104' and  table_id contains '20170324209'
")
WHERE
  id='f3667fd6-8329-4124-a4a2-737e637a5e7d'

获取错误：

带有表通配符的
FROM子句不匹配表

Answer 1

首先使用标准SQL（它更简单/更整洁）。因为你有时间和分钟后缀，这使它有点棘手，但这样的东西应该工作：

#standardSQL
SELECT
  *
FROM
  `<dataset>.auctions_other_*`
WHERE
  _TABLE_SUFFIX LIKE '20170322%'
  OR _TABLE_SUFFIX LIKE '20170323%'
  OR _TABLE_SUFFIX LIKE '20170324%'

Answer 2

你应该明确考虑使用BigQuery Standard SQL作为Graham建议

如果出于某种原因，您仍然需要使用BigQuery Legacy SQL - 请尝试以下

#legacySQL
SELECT * 
FROM TABLE_QUERY(chocolate_raw, 
  "table_id CONTAINS 'auctions_others_' 
  AND SUBSTR(table_id, 1 + LENGTH('auctions_others_'), 8) 
  BETWEEN '20170322' AND '20170324'")
WHERE id='f3667fd6-8329-4124-a4a2-737e637a5e7d'

BigQuery Standard SQL中的类似版本如下所示

#standardSQL
SELECT * 
FROM `chocolate_raw.auctions_others_*`
WHERE SUBSTR(_TABLE_SUFFIX, 1, 8) BETWEEN '20170322' AND '20170324'    
AND id='f3667fd6-8329-4124-a4a2-737e637a5e7d'

如何使用Big Query

2 个答案: