大查询将一个月添加到搜索中

问题描述

希望为 gdelt 中的搜索添加一个月。 如果我只使用年份，代码效果很好； 但如果我找一个月（比如 2019-11），结果是空的。

tnx 为您提供帮助！

  SELECT
  person,SUM(count_of_mentions) AS all_mentions
FROM
  `static-beach-312816.56146_2021_class_materials..israel_media_person_sum`
WHERE
  domain = 'walla.co.il'
  AND SUBSTR(CAST(DATE AS STRING),1,4) = '2019'
GROUP BY
  person
ORDER BY
  all_mentions DESC
LIMIT
  50;

解决方法

你可以试试

EXTRACT(month FROM DATE) = 11 AND EXTRACT(year FROM DATE) = 2019

检查这个 https://cloud.google.com/bigquery/docs/reference/standard-sql/date_functions

您也可以尝试以下您正在尝试的方法，但我会选择上面的选项。

CONCAT(CAST(EXTRACT(EXTRACT(YEAR FROM DATE (Date)) AS STRING),"-",CAST(EXTRACT(MONTH FROM DATE (Date)) AS STRING))=‘2019_11’

,

-- 不要忘记将下面的 Project.Dataset.Tale 更改为您的！ -- 这是 2019 年 1 月的

SELECT
  person,SUM(count_of_mentions) AS all_mentions
FROM
  `gdeltgkgtry.56146_2021_class_materials.israel_media_person_sum`
WHERE
  domain = 'walla.co.il'
  AND SUBSTR(CAST(DATE AS STRING),1,6) = '201901'
GROUP BY
  person
ORDER BY
  all_mentions DESC
LIMIT
  50;

-- 这是 2019 年的所有月份

SELECT
  person,SUBSTR(CAST(DATE AS STRING),6) AS year_month,4) = '2019'
GROUP BY
  person,year_month
ORDER BY
  all_mentions DESC
LIMIT
  50;

-- 这是本杰明·内塔尼亚胡在 2019 年的所有月份（请注意，这里我们捕获了所有网址中提及的所有类型的内塔尼亚胡）

WITH
  person_all AS (
  SELECT
    person,SUM(count_of_mentions) AS all_mentions
  FROM
    `gdeltgkgtry.56146_2021_class_materials.israel_media_person_sum`
  WHERE
    domain = 'walla.co.il'
    AND SUBSTR(CAST(DATE AS STRING),4) = '2019'
    AND LOWER(person) LIKE '%in netanyah%'
  GROUP BY
    person,year_month )
SELECT
  'Benjamin Netanyahu',year_month,SUM(all_mentions) AS all_mentions
FROM
  person_all
GROUP BY
  1,2
ORDER BY
  2 ASC;