Question

您好我正在尝试生成报告总客户，总订单，收入和平均订单价值，其中订单低于15英镑，交付方法按标准在一个表中，15英镑 - 20英镑订单和标准在其他表中。贝娄是我的疑问。

    [Customer no]
    [Order No],
    [Amount],
    [Shipping Service]
    [Shipping Amount]
    FROM [Better$Internet Order] io
    INNER JOIN [Better$Consignment] IC
    ON IC.[Order No]=OH.[Order No]
    WHERE   [order date] >= '2016-08-01' AND 
    [order date] <= '2016-08-31' AND [COUNTRY]='UNITED KINGDOM' and oh.
    [type] like 'order%' and  [Shipping Service]='Standard'
    Group by 
    [Customer no]
    [Order No],
    [Amount],
    [Shipping Service]
    [Shipping Amount]
    ORDER BY [AMOUNT] ASC

在我的查询中，我给了“客户否”以获得总客户，并且“订购否”获得总订单，因为一个客户可能在一个月内订购几次。 “订单日期”，“国家/地区”和“类型”是订单，因此它只能获得订单而不退款或替换。我想只获得“送货服务”是标准的。提前感谢您的帮助。

   **table data:** 
   Customer no| order No| Amount | Shipping Service
   -------------------------------------------------
          1   |    254  |   8    |     standard
          2   |    258  |   12   |     Tracked
          1   |    260  |   10   |     Standard
          3   |    285  |   13   |     Tracked
          4   |    295  |   11   |     Standard


  Expected results: 
  Month         Aug 2016      

  Under 15 | Standard Delivery | Total customer  - 2   
                                 Total orders    - 3 
                                 total revenue   -  £18
                                 AOV             - £9
             Tracked Delivery  | Total customer  - 2   
                                 Total orders    - 2 
                                 total revenue   - 25
                                 AOV             - 12.50

Answer 1

从内部开始，在派生表中，使用case表达式来确定价格等级。 GROUP BY计算每个价格等级/运输类型的结果：

select amountclass, "Shipping Service",
       count(distinct "Customer no") as "Total customers",
       count(*) as "Total orders",
       sum("Amount") as "total revenue",
       avg("Amount" * 1.0) as "AOV"
from
(
    select "Customer no", "order No", "Amount", "Shipping Service"
           case when "Amount" < 15 then "Under 15"
                else "Over 15"
           end as amountclass
    from tablename
) dt
group by amountclass, "Shipping Service"
order by amountclass, "Shipping Service"

使用双引号（例如"Shipping Service"作为分隔标识符是ANSI SQL。（某些dbms产品也有方括号作为替代。）

如何根据总订单价值和邮政组获取报告

1 个答案: