使用CTE將多個結果集合到一個結果集中，並將結果集合分成一個結果集

Question

我正在嘗試使用CTE將多個結果集合到一個結果集中，其中包含6列。

這是我開始與查詢，它返回3個結果集，每個2行：

DECLARE @User AS VARCHAR(50) 
SET @User = 'testuser' 

DECLARE @LastYearEndDate AS DATETIME 
DECLARE @LastMonthEndDate AS DATETIME 
DECLARE @LastWeekEndDate AS DATETIME 
SET @LastYearEndDate = (SELECT DATEADD(dd,-1, DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0))) 
SET @LastMonthEndDate = (SELECT DATEADD(d,-1,DATEADD(mm, DATEDIFF(m,0,GETDATE()),0))) 
SET @LastWeekEndDate = (SELECT DATEADD(day, -1 - (DATEPART(dw, GETDATE()) + @@DATEFIRST - 2) % 7, GETDATE())) 

SELECT SUM(os.db_Exp) 
    AS YearToDateRevenue, 
    COUNT(*) AS YearToDateCount 
FROM tblOrderSum os 
    JOIN tblUserProfile up 
     ON os.db_RTS = up.db_UserId 
WHERE os.db_Deleted = 0 
    AND os.db_Date39 > @LastYearEndDate 
    AND os.db_Date45 = '1900/01/01' 
    AND db_Email LIKE @User + '%' 


SELECT SUM(os.db_Exp) 
    AS MonthToDateRevenue, 
    COUNT(*) AS MonthToDateCount 
FROM tblOrderSum os 
    JOIN tblUserProfile up 
     ON os.db_RTS = up.db_UserId 
WHERE os.db_Deleted = 0 
    AND os.db_Date39 > @LastMonthEndDate 
    AND os.db_Date45 = '1900/01/01' 
    AND db_Email LIKE @User + '%' 

SELECT SUM(os.db_Exp) 
    AS WeekToDateRevenue, 
    COUNT(*) AS WeekToDateCount 
FROM tblOrderSum os 
    JOIN tblUserProfile up 
     ON os.db_RTS = up.db_UserId 
WHERE os.db_Deleted = 0 
    AND os.db_Date39 > @LastWeekEndDate 
    AND os.db_Date45 = '1900/01/01' 
    AND db_Email LIKE @User + '%' 

輸出：

Result set 1: 
    YearToDateRevenue | YearToDateCount 
      120    3 
    Result set 2: 
    MonthToDateRevenue | MonthToDateCount 
      75    2 
    Result set 3: 
    WeekToDateRevenue | WeekToDateCount 
      18    1 

有可能更簡單的方式來做到這一點，因爲我每次只切換一個參數，但這是我的嘗試：

/* Same declarations as above */ 

WITH cte AS (
SELECT 
    os.db_Exp 
FROM tblOrderSum os 
    JOIN tblUserProfile up 
     ON os.db_RTS = up.db_UserId 
WHERE os.db_Deleted = 0 
    AND os.db_Date39 > @LastYearEndDate 
    AND os.db_Date39 > @LastMonthEndDate 
    AND os.db_Date39 > @LastWeekEndDate 
    AND os.db_Date45 = '1900/01/01' 
    AND db_Email LIKE @User + '%') 

SELECT 
(SELECT SUM(os.db_Exp) AS YearToDateRevenue, 
    COUNT(*) AS YearToDateCount 
FROM cte 
WHERE os.db_Date39 > @LastYearEndDate) 

(SELECT SUM(os.db_Exp) AS YearToDateRevenue, 
    COUNT(*) AS YearToDateCount 
FROM cte 
WHERE os.db_Date39 > @LastMonthEndDate) 

(SELECT SUM(os.db_Exp) AS YearToDateRevenue, 
    COUNT(*) AS YearToDateCount 
FROM cte 
WHERE os.db_Date39 > @LastWeekEndDate) 

現在我正在收到錯誤：

Msg 4104, Level 16, State 1, Line 28 
The multi-part identifier "os.db_Date39" could not be bound. 
Msg 4104, Level 16, State 1, Line 25 
The multi-part identifier "os.db_Exp" could not be bound. 
Msg 116, Level 16, State 1, Line 30 
Only one expression can be specified in the select list when the subquery is not introduced with EXISTS. 

輸出我想獲得：

YearToDateRevenue | YearToDateCount | MonthToDateRevenue | MonthToDateCount | WeekToDateRevenue | WeekToDateCount 
     120     3     75     2     18     1 

我不確定納入在CTE的參數和得到這個運行的正確方法。我不明白的任何更簡單的解決方案也會受到讚賞。我只是希望每個總和和計數在不同的列。只有一個數字被返回，因此這應該返回一行和六列。謝謝

Answer 1

您可以使用CASE來實現這一目標：

SELECT SUM(CASE WHEN os.db_Date39 > @LastYearEndDate THEN os.db_Exp ELSE 0 END) AS YearToDateRevenue, 
    SUM(CASE WHEN os.db_Date39 > @LastYearEndDate THEN 1 ELSE 0 END) AS YearToDateCount, 
    SUM(CASE WHEN os.db_Date39 > @LastMonthEndDate THEN os.db_Exp ELSE 0 END) AS MonthToDateRevenue, 
    SUM(CASE WHEN os.db_Date39 > @LastMonthEndDate THEN 1 ELSE 0 END) AS MonthToDateCount, 
    SUM(CASE WHEN os.db_Date39 > @LastWeekEndDate THEN os.db_Exp ELSE 0 END) AS WeekToDateRevenue, 
    SUM(CASE WHEN os.db_Date39 > @LastWeekEndDate THEN 1 ELSE 0 END) AS WeekToDateCount 
FROM tblOrderSum os 
    JOIN tblUserProfile up 
     ON os.db_RTS = up.db_UserId 
WHERE os.db_Deleted = 0 
    AND os.db_Date45 = '1900/01/01' 
    AND db_Email LIKE @User + '%' 

Answer 2

有幾種不同的方法可以解決這個問題，但我相信最快捷的方法是使用類似這樣的東西......這是對第一個查詢的修改，應該讓你快速運行。有更好的方法來做到這一點，但根據你的問題和提供的信息，這將讓你啓動並運行。

DECLARE @User AS VARCHAR(50) 
SET @User = 'testuser' 

DECLARE @LastYearEndDate AS DATETIME 
DECLARE @LastMonthEndDate AS DATETIME 
DECLARE @LastWeekEndDate AS DATETIME 
SET @LastYearEndDate = (SELECT DATEADD(dd,-1, DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0))) 
SET @LastMonthEndDate = (SELECT DATEADD(d,-1,DATEADD(mm, DATEDIFF(m,0,GETDATE()),0))) 
SET @LastWeekEndDate = (SELECT DATEADD(day, -1 - (DATEPART(dw, GETDATE()) + @@DATEFIRST - 2) % 7, GETDATE())) 

with YTD_total as (
SELECT 1 as joinpoint 
    SUM(os.db_Exp) 
    AS YearToDateRevenue, 
    COUNT(*) AS YearToDateCount 
FROM tblOrderSum os 
    JOIN tblUserProfile up 
     ON os.db_RTS = up.db_UserId 
WHERE os.db_Deleted = 0 
    AND os.db_Date39 > @LastYearEndDate 
    AND os.db_Date45 = '1900/01/01' 
    AND db_Email LIKE @User + '%' 
), 
MTD_total as (
SELECT 1 as joinpoint 
    SUM(os.db_Exp) 
    AS MonthToDateRevenue, 
    COUNT(*) AS MonthToDateCount 
FROM tblOrderSum os 
    JOIN tblUserProfile up 
     ON os.db_RTS = up.db_UserId 
WHERE os.db_Deleted = 0 
    AND os.db_Date39 > @LastMonthEndDate 
    AND os.db_Date45 = '1900/01/01' 
    AND db_Email LIKE @User + '%' 
), 
WTD_total as (
SELECT 1 as joinpoint 
    SUM(os.db_Exp) 
    AS WeekToDateRevenue, 
    COUNT(*) AS WeekToDateCount 
FROM tblOrderSum os 
    JOIN tblUserProfile up 
     ON os.db_RTS = up.db_UserId 
WHERE os.db_Deleted = 0 
    AND os.db_Date39 > @LastWeekEndDate 
    AND os.db_Date45 = '1900/01/01' 
    AND db_Email LIKE @User + '%' 
) 

select YearToDateRevenue, 
     YearToDateCount, 
     MonthToDateRevenue, 
     MonthToDateCount 
     WeekToDateRevenue, 
     WeekToDateCount 
from ytd_totals ytd 
    join mtd_total mtd 
     on mtd.joinpoint = ytd.joinpoint 
    join wtd_total wtd 
     on wtd.joinpoint = mtd.joinpoint