獲取每天的產品銷售平均計算具有積極的銷售

Question

我有以下幾列

SELECT DATE, WEEK, BRANCH, PROD, TARGETREACH 
FROM TARGETSALE 
WHERE BRANCH = 1 
AND WEEK BETWEEN 52 AND 53; 

DATE  WEEK BRANCH PROD TARGETREACH 
------------------------------------------------------------------- 
01/09/2014 52  1  1  50 
02/09/2014 52  1  1  -10 
03/09/2014 52  1  1  50 
04/09/2014 52  1  1  50 
05/09/2014 52  1  1  40 
06/09/2014 52  1  1  -10 
07/09/2014 53  1  1  -5 
08/09/2014 53  1  1   0 
09/09/2014 53  1  1  10 
10/09/2014 53  1  1  20 
11/09/2014 53  1  1  30 
12/09/2014 53  1  1  40 
13/09/2014 53  1  1   0 
01/09/2014 52  1  2  20 
02/09/2014 52  1  2   0 
03/09/2014 52  1  2   0 
04/09/2014 52  1  2  10 
05/09/2014 52  1  2  20 
06/09/2014 52  1  2  10 
07/09/2014 53  1  2  -10 
08/09/2014 53  1  2  10 
09/09/2014 53  1  2  -10 
10/09/2014 53  1  2  20 
11/09/2014 53  1  2  20 
12/09/2014 53  1  2  40 
13/09/2014 53  1  2   0 
01/09/2014 52  1  3  30 
02/09/2014 52  1  3  30 
03/09/2014 52  1  3   5 
04/09/2014 52  1  3   0 
05/09/2014 52  1  3  10 
06/09/2014 52  1  3  -10 
07/09/2014 53  1  3  -10 
08/09/2014 53  1  3  -10 
09/09/2014 53  1  3  20 
10/09/2014 53  1  3  10 
11/09/2014 53  1  3  40 
12/09/2014 53  1  3  10 
13/09/2014 53  1  3  10 

「targetsales」這個表TARGETSALE天數顯示銷售了多少超過目標，其中負數表示銷售額低於目標多少。我如何做到以下幾點： 1.我需要獲得每天所有產品的平均值。事情是這樣的：

DATE  BRANCH AVERAGE_SALES_OF_ALL_PRODUCT 
    01/09/2014 1  33.33 
    02/09/2014 1  -1.67 
    ...and so on 

然後我需要另一個查詢，顯示如何在這兩週內的許多日子，有積極的平均銷售。事情是這樣的：

BRANCH 2WEEKS_SINCE DAYS_WITH_POSITIVE_AVERAGE_SALES 
1  53    9 

以上只是舉個例子不是一個真實的結果。 對不起，希望這不是太混亂。非常感謝。

Answer 1

在Oracle中，date型仍然可能有一個時間分量。如果你不知道這是不是在那裏，然後用trunc()將其刪除：

select trunc(date), branch, avg(targetreach) 
from targetsale 
group by truncdate, branch 
order by 1, 2; 

對於第二個查詢，您要使用case：

select branch, count(distinct case when targetreach > 0 then date end) as DaysWithPositiveSales 
from targetsales 
group by branch; 

如果你知道有每一個行每個分支的日期 - 和日期的時間部分是空的 - 那麼distinct是沒有必要的。

Answer 2

1）

SELECT TRUNC(DATE, 'DD'), BRANCH, SUM(TARGETREACH) 
FROM TARGETSALE WHERE BRANCH = 1 AND WEEK BETWEEN 52 AND 53 
GROUP BY TRUNC(DATE, 'DD'), BRANCH; 

2）

SELECT BRANCH, SUM(DECODE(ABS(TARGETREACH), 1, 1, 0) 
FROM TARGETSALE WHERE BRANCH = 1 AND WEEK BETWEEN 52 AND 53 
GROUP BY BRANCH;