sql查詢計數兩個日期之間的多行

Question

問候， 我想建立一個查詢，將提供兩個日期之間的所有記錄（一些記錄是反覆出現的）的總數。我被困在以下查詢：

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

在此先感謝。

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 

你不應該按日期組，因爲你會得到每一個日期排

Answer 2

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

因爲HAVING沒有被確定與順序設置coorect它