Question

我是SQL的新手。我目前正在开发一个 Oracle数据库，并且我已经创建了一个根据日期范围参数提取数据的报告。

代码如下：

SELECT 
  DISTINCT C.CUSTOMER_CODE
, MS.SALESMAN_NAME
, SUM(C.REVENUE_AMT) Rev_Amt


FROM 
    C_REVENUE_ANALYSIS C
  , M_CUSTOMER_H MC
  , M_SALESMAN MS


WHERE C.COMPANY_CODE = 'W1'
  AND C.CUSTOMER_CODE = MC.CUSTOMER_CODE
  AND MC.SALESMAN_CODE = MS.SALESMAN_CODE
  AND trunc(C.REVENUE_DATE) between to_date(<STARTDATE>,'YYYYMMDD') and to_date(<ENDDATE>,'YYYYMMDD')
  AND MS.COMPANY_CODE = '00'

GROUP BY C.CUSTOMER_CODE, MS.SALESMAN_NAME

ORDER BY C.CUSTOMER_CODE, MS.SALESMAN_NAME

日期范围从1月1日到4月30日的结果报告是：

+-----------+--------------+--------------+
|Customer   |Salesman Name |Revenue Amount|
+-----------+--------------+--------------+
|Customer 1 |Salesman 1    |       5000.00|
+-----------+--------------+--------------+
|Customer 2 |Salesman 1    |       8000.00|
+-----------+--------------+--------------+
|Customer 3 |Salesman 2    |        300.00|
+-----------+--------------+--------------+
|Customer 4 |Salesman 3    |        600.00|
+-----------+--------------+--------------+
|Customer 5 |Salesman 3    |       5000.00|
+-----------+--------------+--------------+
|Customer 6 |Salesman 3    |       8000.00|
+-----------+--------------+--------------+
|Customer 7 |Salesman 4    |       9000.00|
+-----------+--------------+--------------+
|Customer 8 |Salesman 5    |       2000.00|
+-----------+--------------+--------------+
|Customer 9 |Salesman 6    |       1000.00|
+-----------+--------------+--------------+
|Customer10 |Salesman 6    |       5000.00|
+-----------+--------------+--------------+
|Customer11 |Salesman 7    |       6000.00|
+-----------+--------------+--------------+
|Customer12 |Salesman 8    |       8000.00|
+-----------+--------------+--------------+

我需要在1月到4月之间显示每个销售员每个月的收入分配。

所以我希望结果如下：

+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer   |Salesman Name |Rev for Jan|Rev for Feb|Rev for Mar|Rev for Apr|Total Rev Amt|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer 1 |Salesman 1    |    1000.00|    1000.00|    1000.00|    2000.00|      5000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer 2 |Salesman 1    |    2000.00|    2000.00|    2000.00|    2000.00|      8000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer 3 |Salesman 2    |     100.00|       0.00|     100.00|     100.00|       300.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer 4 |Salesman 3    |     100.00|     200.00|     100.00|     200.00|       600.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer 5 |Salesman 3    |    1000.00|    2000.00|    1000.00|    1000.00|      5000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer 6 |Salesman 3    |    1000.00|    2000.00|    1000.00|    4000.00|      8000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer 7 |Salesman 4    |    2000.00|    2000.00|    3000.00|    2000.00|      9000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer 8 |Salesman 5    |     500.00|     400.00|     500.00|     600.00|      2000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer 9 |Salesman 6    |     200.00|     200.00|     200.00|     400.00|      1000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer10 |Salesman 6    |    1000.00|    1000.00|    2000.00|    1000.00|      5000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer11 |Salesman 7    |    2000.00|    2000.00|    1000.00|    1000.00|      6000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|Customer12 |Salesman 8    |    2000.00|    2000.00|    2000.00|    2000.00|      8000.00|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+

现在，挑战：

列数需要根据日期范围而变化。例如;选择1月到4月时，我应该获得4列收入加1列总收入。如果选择去年十月到今年四月，我应该获得7列收入加1列总收入。

Answer 1

您必须在select＆amp; amp;中添加截断（C.REVENUE_DATE，＆＃39; MM＆＃39;）通过...分组。那么你的结果就是列式的。然后你必须按照你所示的方式进行转动。

variable = userInputOfSorts()
puts JSON.pretty_generate(variable) # Prints expected output, array with 2 values
variable = [*variable]
puts variable # nil

需要具有不同列的报告，具体取决于日期范围参数

1 个答案: