Access 2010中的查询

Question

使用此查询

SELECT Year, Month,  Customer, Cod_user, Int(Sum(hours)) AS hours
FROM T_Att
GROUP BY Year, Mounth, Customer, Cod_user
HAVING (((Year)="2016") AND ((Month)="03") AND ((Customer)="CA"));

我得到以下结果

如果您想添加全球总和（总和）和键，需要更改哪些内容？

Answer 1

虽然我没有经过测试，但您应该可以添加另一个字段：

这将为所有年，月和客户增加所有小时数。

SELECT      Year, 
            Month,  
            Customer, 
            Cod_user, 
            Int(Sum(hours)) AS lhours,
            (
             SELECT SUM(hours)
             FROM T_Att
            ) AS GlobalTotal
FROM        T_Att
GROUP BY    Year, Month, Customer, Cod_user
HAVING      (((Year)="2016") AND ((Month)="03") AND ((Customer)="CA"));

要将GlobalTotal保持至2016年3月，请使用：

SELECT      Year, 
            Month,  
            Customer, 
            Cod_user, 
            Int(Sum(hours)) AS lhours,
            (
             SELECT SUM(hours)
             FROM T_Att
             WHERE Year = T1.Year AND Month = T1.Month
            ) AS GlobalTotal
FROM        T_Att T1
GROUP BY    Year, Month, Customer, Cod_user
HAVING      (((Year)="2016") AND ((Month)="03") AND ((Customer)="CA"));

注意 - 我已将hours重命名为lhours以避免循环引用。您还应该考虑重命名year和month，因为这些是关键词，可能会导致问题 此外，year和month会更好，而不是文字。