Question

问候，我正在尝试构建一个查询，它将为我提供两个日期之间所有记录（一些记录重复出现）的总计。我陷入了以下问题：

SELECT DISTINCT Country, COUNT(Country) as Count, Date 
From DataSet 
GROUP BY Country, Date 
ORDER BY Country HAVING Date>'1/1/2000'

提前致谢。

Answer 1

  SELECT DISTINCT Country, COUNT (Country) AS COUNT
    FROM DataSet
   WHERE Date BETWEEN '01-01-2010' AND '01-01-2011'
GROUP BY Country
ORDER BY Country

您不应按日期分组，因为您将获得每一个日期

Answer 2

SELECT Country, COUNT(DISTINCT Country) as "Count"
FROM DataSet  GROUP BY Country, Date
HAVING Date>'1/1/2000';

因为HAVING没有通过ok coorect设置顺序

sql查询计算两个日期之间的多行

2 个答案: