需要根据日期范围参数报告列数

Question

我是SQL的新手.我目前正在开发一个Oracle数据库,并且我创建了一个报告,根据日期范围参数提取数据.

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

由此产生的日期范围为1月1日至4月30日的报告为:

+-----------+--------------+--------------+
|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|
+-----------+--------------+--------------+

请到这里,我需要你的帮助.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成.

所以我希望结果看起来像这样:

+-----------+--------------+-----------+-----------+-----------+-----------+-------------+
|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|
+-----------+--------------+-----------+-----------+-----------+-----------+-------------+

不幸的是,由于我是新手,我无权创建存储过程来定期调用此数据.所以我可能要编写冗余代码.

但问题是,每个销售人员每个月能够分解收入的代码是什么？

此外,列数因日期范围而异.例如; 选择1月到4月时,我会获得4列收入加1列总收入.当前一年的10月到今年4月被选中时,我获得7列收入加1列总收入.

请有人帮助新手渴望学习和证明自己吗？非常感谢你的帮助.非常感谢提前.

编辑:

经过一番劝说后,我的经理同意提交我的存储过程以供批准,如果获得批准,将会创建.

如果我确实创建了一个存储过程,那么获得所需结果的代码是什么？

提前致谢.

Answer 1

查看数据透视函数http://www.oracle.com/technetwork/articles/sql/11g-pivot-097235.html

丑陋的部分是您必须提前知道旋转列（在您的情况下是所选范围内的月份）。一个潜在的解决方案是使用 PLSQL 创建动态 SQL 语句，但您可能没有适当的权限来执行它。您在帖子中提到您无法创建程序（我假设您没有 CREATE PROCEDURE 授权），但不确定这是否是您缺少的唯一授权。