Question

我有两个表格。在第一个是为谁和何时开始某种类型的折扣的数据（有8种类型的折扣，但我们将它们分为两类）。折扣活跃6个月，但每月减少，折扣的开始日期对每个人不同。第二个表是交易。

我想知道有多少交易以及第一类折扣和第二类人员在第一个月，第二个等方面做了多少交易。

SELECT (CASE  WHEN Trunc(Months_Between(A.DATE_TRANS, B.DATA_DISCOUNT))=0 THEN 0
  WHEN Trunc(Months_Between(A.DATE_TRANS, B.DATE_DISCOUNT))=1 THEN 1
  WHEN Trunc(Months_Between(A.DATE_TRANS, B.DATE_DISCOUNT))=2 THEN 2
  WHEN Trunc(Months_Between(A.DATE_TRANS, B.DATE_DISCOUNT))=3 THEN 3
  WHEN Trunc(Months_Between(A.DATE_TRANS, B.DATE_DISCOUNT))=4 THEN 4
  WHEN Trunc(Months_Between(A.DATE_TRANS, B.DATE_DISCOUNT))=5 THEN 5
  END)
  AS MONTH, 
  CASE WHEN A.TYPE IN (5,6,7,8)  THEN  COUNT(A.PRICE)
  END  AS COUNT_TRANS_1,
  CASE WHEN A.TYPE IN (5,6,7,8)  THEN  SUM(A.PRICE) 
  END AS SUM_PRICE_1,
  CASE WHEN A.TYPE IN (1,2,3,4)  THEN  COUNT(A.PRICE) 
  END AS COUNT_TRANS_2,
  CASE WHEN A.TYPE IN (1,2,3,4)  THEN  SUM(A.PRICE)
  END AS SUM_PRICE_2
from DATABASE_1 A join DATABASE_2 B
on A.ID=B.ID 
where Trunc(Months_Between(A.DATE_TRANS, B.DATE_DISCOUNT)) IN (0,1,2,3,4,5)   
GROUP BY A.ID, MONTH

Answer 1

尝试了解您的需求，也许您需要以下内容：

SELECT Trunc(Months_Between(A.DATE_TRANS, B.DATE_DISCOUNT)) AS MONTH, 
  COUNT(
        CASE
            WHEN A.TYPE IN (5,6,7,8)
              THEN A.PRICE
            ELSE NULL
        END
       ) AS COUNT_TRANS_1,
  SUM(
        CASE
            WHEN A.TYPE IN (5,6,7,8) 
                THEN A.PRICE
            ELSE 0
        END
     ) AS SUM_PRICE_1,
  COUNT(
        CASE
            WHEN A.TYPE IN (1,2,3,4)
                THEN  A.PRICE
            ELSE NULL
        END
       ) AS COUNT_TRANS_2,
  SUM(
        CASE
            WHEN A.TYPE IN (1,2,3,4)
                THEN A.PRICE
            ELSE 0
        END
     ) AS SUM_PRICE_2
from DATABASE_1 A join DATABASE_2 B
on A.ID=B.ID 
where Trunc(Months_Between(A.DATE_TRANS, B.DATE_DISCOUNT)) IN (0,1,2,3,4,5)   
GROUP BY A.ID, Trunc(Months_Between(A.DATE_TRANS, B.DATE_DISCOUNT))

我不确定您是否需要按ID分组，请检查它。

分组，不同的日期

1 个答案: