生成銷售數據通過每日，每月，每季度，每年與組

Question

我想編寫一個報告，將產生4組銷售數據：每天，每月，每季度和每年。我遇到的問題是如果沒有日常活動，它不會產生每月，每季度或每年。我怎麼能得到沒有數據的日子來產生一個0，並仍然計算其他三組？下面是我想使用（它沒有列入當年爲一組尚未）代碼：

WITH Summary AS 
(SELECT 
    1 as GRP, 
    'DAILY' as Label, 
    O.SnapshotDateKey, 
    BilledDollars = CASE WHEN SUM(O.DollarsBilled) = 0 THEN 0 ELSE SUM(O.DollarsBilled) END, 
    BilledMSF = CASE WHEN SUM(O.MsfBilled) = 0 THEN 0 ELSE SUM(O.MsfBilled) END, 
    BookedDollarsPerMSF = CASE WHEN SUM(O.MsfBilled) = 0 THEN 0 ELSE (SUM(O.DollarsBilled)/SUM(O.MsfBilled)) END, 
    BilledContribution = CASE WHEN SUM(O.Contribution) = 0 THEN 0 ELSE SUM(O.Contribution) END, 
    BilledProfit = CASE WHEN SUM(O.Profit) = 0 THEN 0 ELSE SUM(O.Profit) END 
FROM 
    FactInvoiceSummary O 
WHERE 
    O.SnapshotDateKey = 20161230 and O.SalesRepKey = 167 
GROUP BY 
    O.SnapshotDateKey 

UNION 

SELECT 
    2 as GRP, 
    'MTD' as Label, 
    O.SnapshotDateKey, 
    BilledDollars = CASE WHEN SUM(O.MTDDollarsBilled) = 0 THEN 0 ELSE (SUM(O.MTDDollarsBilled)) END, 
    BILLEDMSF = CASE WHEN SUM(O.MTDMsfBilled) = 0 THEN 0 ELSE (SUM(O.MTDMsfBilled)) END, 
    BookedDollarsPerMSF = CASE WHEN SUM(O.MTDMsfBilled) = 0 THEN 0 ELSE (SUM(O.MTDDollarsBilled)/SUM(O.MTDMsfBilled)) END, 
    SUM(O.MTDContribution) as BilledContribution, 
    SUM(O.MTDProfit) as BilledProfit 
FROM 
    FactInvoiceSummary O 
WHERE 
    O.SnapshotDateKey = 20161230 and O.SalesRepKey = 167 
GROUP BY 
    O.SnapshotDateKey 

UNION 

SELECT 
    3 as GRP, 
    'QTD' as Label, 
    O.SnapshotDateKey, 
    BilledDollars = CASE WHEN SUM(O.QTDDollarsBilled) = 0 THEN 0 ELSE (SUM(O.QTDDollarsBilled)) END, 
    BILLEDMSF = CASE WHEN SUM(O.QTDMsfBilled) = 0 THEN 0 ELSE (SUM(O.QTDMsfBilled)) END, 
    BookedDollarsPerMSF = CASE WHEN SUM(O.QTDMsfBilled) = 0 THEN 0 ELSE (SUM(O.QTDDollarsBilled)/SUM(O.QTDMsfBilled)) END, 
    SUM(O.QTDContribution) as BilledContribution, 
    SUM(O.QTDProfit) as BilledProfit 
FROM 
    FactInvoiceSummary O 
WHERE 
    O.SnapshotDateKey = 20161230 and O.SalesRepKey = 167 
GROUP BY 
    O.SnapshotDateKey 
) 

SELECT * FROM Summary 
UNION ALL SELECT NULL, 0,0,0,0,0 WHERE NOT EXISTS (SELECT * FROM Summary) 

謝謝！

Answer 1

考慮更改WHERE子句聯合查詢點的所有部分苛求可能/可能不包含數據單日期。此外，重複的日常聚集的所有部分，因爲更新WHERE條件將擴大的行數。無需維護MTD，QTD或YTD列。加上無需GROUP BY的所有列可與GRP和標籤常數聚集。

由於SnapshotDateKey似乎捕獲日期爲數字，簡單地篩選適當的範圍內對非日常週期。下面是一個更新CTE聲明：

WITH Summary AS 

(SELECT 
    1 as GRP, 
    'DAILY' as Label, 
    MAX(O.SnapshotDateKey) AS MaxSnapshotDateKey, 
    BilledDollars = CASE WHEN SUM(O.DollarsBilled) = 0 THEN 0 ELSE SUM(O.DollarsBilled) END, 
    BilledMSF = CASE WHEN SUM(O.MsfBilled) = 0 THEN 0 ELSE SUM(O.MsfBilled) END, 
    BookedDollarsPerMSF = CASE WHEN SUM(O.MsfBilled) = 0 THEN 0 ELSE (SUM(O.DollarsBilled)/SUM(O.MsfBilled)) END, 
    BilledContribution = CASE WHEN SUM(O.Contribution) = 0 THEN 0 ELSE SUM(O.Contribution) END, 
    BilledProfit = CASE WHEN SUM(O.Profit) = 0 THEN 0 ELSE SUM(O.Profit) END 
FROM 
    FactInvoiceSummary O 
WHERE 
    O.SnapshotDateKey = 20161230 and O.SalesRepKey = 167 

UNION 

SELECT 
    2 as GRP, 
    'MTD' as Label, 
    MAX(O.SnapshotDateKey) AS MaxSnapshotDateKey, 
    BilledDollars = CASE WHEN SUM(O.DollarsBilled) = 0 THEN 0 ELSE SUM(O.DollarsBilled) END, 
    BilledMSF = CASE WHEN SUM(O.MsfBilled) = 0 THEN 0 ELSE SUM(O.MsfBilled) END, 
    BookedDollarsPerMSF = CASE WHEN SUM(O.MsfBilled) = 0 THEN 0 ELSE (SUM(O.DollarsBilled)/SUM(O.MsfBilled)) END, 
    BilledContribution = CASE WHEN SUM(O.Contribution) = 0 THEN 0 ELSE SUM(O.Contribution) END, 
    BilledProfit = CASE WHEN SUM(O.Profit) = 0 THEN 0 ELSE SUM(O.Profit) END 
FROM 
    FactInvoiceSummary O 
WHERE 
    O.SnapshotDateKey BETWEEN 20161201 AND 20161230 and O.SalesRepKey = 167 

UNION 

SELECT 
    3 as GRP, 
    'QTD' as Label, 
    MAX(O.SnapshotDateKey) AS MaxSnapshotDateKey, 
    BilledDollars = CASE WHEN SUM(O.DollarsBilled) = 0 THEN 0 ELSE SUM(O.DollarsBilled) END, 
    BilledMSF = CASE WHEN SUM(O.MsfBilled) = 0 THEN 0 ELSE SUM(O.MsfBilled) END, 
    BookedDollarsPerMSF = CASE WHEN SUM(O.MsfBilled) = 0 THEN 0 ELSE (SUM(O.DollarsBilled)/SUM(O.MsfBilled)) END, 
    BilledContribution = CASE WHEN SUM(O.Contribution) = 0 THEN 0 ELSE SUM(O.Contribution) END, 
    BilledProfit = CASE WHEN SUM(O.Profit) = 0 THEN 0 ELSE SUM(O.Profit) END 
FROM 
    FactInvoiceSummary O 
WHERE 
    O.SnapshotDateKey BETWEEN 20161001 AND 20161230 and O.SalesRepKey = 167 
) 

除了 - 在理想情況下，你可以使用一個日期時間字段，維持日期/時間的部分，提取天/周/月/季度/年的指標。同樣如上所示，僅合計一個一套DollarsBilled，MsfBilled，Contribution，Profit列，沒有MTD，QTD，YTD的計算集。