我可以在1個MS SQL查詢中獲得一天，一週和一個月的總和嗎？

Question

當我與列

• 用戶
• 分表
• createdAt

我可以得到所有點，爲一天的每一個用戶，一週和1月MS SQL查詢？ 這樣的結果看起來是這樣的：

|user |pointsDay|pointsWeek|pointsMonth| 
|user1| 12 | 50 | 200  | 
|user2| 10 | 60 | 222  | 

...

Answer 1

此幫助你，

SELECT [USER], 
     SUM(POINTS) POINTSMONTH, 
     SUM(CASE WHEN CREATEDATE>DATEADD(DAY,-7,GETDATE()) THEN POINTS ELSE 0 END) POINTSWEEK, 
     SUM(CASE WHEN CREATEDATE>DATEADD(DAY,-1,GETDATE()) THEN POINTS ELSE 0 END) POINTSDAY 
    FROM USERS 
    WHERE CREATEDATE> DATEADD(DAY,-30,GETDATE()) 
    GROUP BY [USER] 

Answer 2

這應該工作：

WITH Src AS 
(
    SELECT * FROM (VALUES 
    ('user1', 100, DATEADD(DAY,-50,GETDATE())), 
    ('user1', 2, DATEADD(DAY,-15,GETDATE())), 
    ('user1', 3, DATEADD(DAY,-5,GETDATE())), 
    ('user1', 7, GETDATE()), 
    ('user2', 4, GETDATE()) 
    )T([User],Points,CreatedAt) 
) --Test data 

SELECT [User], 
    SUM(Points) Monthly, 
    SUM(CASE WHEN CreatedAt>DATEADD(DAY,-7,GETDATE()) THEN Points ELSE 0 END) Weekly, 
    SUM(CASE WHEN CreatedAt>DATEADD(DAY,-1,GETDATE()) THEN Points ELSE 0 END) Daily 
FROM Src 
WHERE CreatedAt > DATEADD(DAY,-30,GETDATE()) 
GROUP BY [User] 

Answer 3

只需使用子查詢讓每一個你需要計算。

select user, 
     (select sum(points) from my_table as points where points.user = users.user and createdAt = getDate()) as pointsDay, 
     (select sum(points) from my_table as points where points.user = users.user and datepart(week, createdAt) = datepart(week, getDate()) and datepart(year, createdAt) = datepart(year, getDate())) as pointsWeek, 
     (select sum(points) from my_table as points where points.user = users.user and datepart(month, createdAt) = datepart(month, getDate()) and datepart(year, createdAt) = datepart(year, getDate())) as pointsMonth, 
from my_table as users 
group by user