Question

所以，我需要一些家庭作业的帮助。

下面是我需要使用的数据库部分的架构。

我确定其中有一些冗余（我也很感激设置方面的任何帮助）。无论如何，这是作业：

销售经理现在希望您创建一份报告，根据其总销售额和总销售量对每个产品进行排名（每个   将是它自己的专栏）。创建一个返回
的存储过程   以下列，但也添加了两个新的排名列。

产品名称|订单数量|总销售额|总销售数量



首席执行官希望根据上个月的销售情况了解销售情况。请向她提供一个查询，按产品数量对产品进行排名   上个月的订单。应该没有SKIPPED NUMBERS。



创建一个SELECT语句，生成一个包含客户ID，订单日期等的订单列表。***使用行号功能   为按订单日期DESC

排序的每一行生成唯一ID

Answer 1

试试吧

CREATE PROCEDURE report_salesmanager 
AS 
  WITH cte_main AS 
  ( 
             SELECT     p.NAME, 
                        Isnull(Count(DISTINCT o.orderid), 0)  corderid, 
                        Sum(Isnull(o.ordertotal, 0))          sordertotal, 
                        Sum (Isnull(oi.orderitemquantity, 0)) sorderitemquantity 
             FROM       product p 
             LEFT JOIN  orderitem oi 
             INNER JOIN orders o 
             ON         o.orderid - oi.orderid 
             ON         p.productid = oi.productid 
             GROUP BY   p.NAME), cte_rank_value AS 
  ( 
           SELECT   NAME, 
                    Rank() OVER( ORDER BY sordertotal DESC) rk 
           FROM     cte_main), cte_rank_qtd AS 
  ( 
           SELECT   NAME, 
                    Rank() OVER( ORDER BY sorderitemquantity DESC) rk 
           FROM     cte_main) 
  SELECT     a.NAME [Product Name], 
             a.corderid, 
             [Orders Count] a.sordertotal [Total Sales Value], 
             b.rk [Rank Total Sales Value], 
             a.sorderitemquantity [Total Sales Quantity], 
             c.rk [Rank Total Sales Quantity] 
  FROM       cte_main a 
  INNER JOIN cte_rank_value b 
  ON         a.NAME = b.NAME 
  INNER JOIN cte_rank_qtd c 
  ON         a.NAME = c.NAME

GO

CREATE PROCEDURE report_ceo 
AS 
  DECLARE @somedateLastMonth DATE = Dateadd(-1,m,Getdate()) WITH cte_main AS 
  ( 
             SELECT     p.NAME, 
                        Isnull(Count(DISTINCT o.orderid), 0)  corderid, 
                        Sum(Isnull(o.ordertotal, 0))          sordertotal, 
                        Sum (Isnull(oi.orderitemquantity, 0)) sorderitemquantity 
             FROM       product p 
             INNER JOIN orderitem oi 
             INNER JOIN orders o 
             ON         o.orderid - oi.orderid 
             ON         p.productid = oi.productid 
             WHERE      Year(o.orderdate) * 100 + Month(o.orderdate) = Year(@somedateLastMonth) * 100 + Month(@somedateLastMonth)
             GROUP BY   p.NAME), 
    cte_rank_value AS 
  ( 
           SELECT   NAME, 
                    Rank() OVER( ORDER BY sordertotal DESC) rk 
           FROM     cte_main), 
    cte_rank_qtd AS 
  ( 
           SELECT   NAME, 
                    Rank() OVER( ORDER BY sorderitemquantity DESC) rk 
           FROM     cte_main) 
  SELECT     a.NAME [Product Name], 
             a.corderid, 
             [Orders Count] a.sordertotal [Total Sales Value], 
             b.rk [Rank Total Sales Value], 
             a.sorderitemquantity [Total Sales Quantity], 
             c.rk [Rank Total Sales Quantity] 
  FROM       cte_main a 
  INNER JOIN cte_rank_value b 
  ON         a.NAME = b.NAME 
  INNER JOIN cte_rank_qtd c 
  ON         a.NAME = c.NAME
go


SELECT     Row_number() OVER (ORDER BY o.orderdate DESC, o.ordertime DESC) rowNumber ,
           * 
FROM       product p 
INNER JOIN orderitem oi 
INNER JOIN orders o 
ON         o.orderid - oi.orderid 
ON         p.productid = oi.productid 
INNER JOIN cart c 
ON         c.orderid = o.orderid

SQL Server - 窗口函数

1 个答案: