如何更新日期从第一个交易日期开始的日期和地址从最近交易的日期开始的交易数据（如果已更新）？

Question

我正在尝试重新排列日期为第一笔交易/购物日期和最新交易的地址的数据。 数据包括单个客户在不同日期的交易。 请帮忙。

期望的输出应类似于：

Answer 1

由于缺少表结构等，这里有一些“虚拟”代码。 这个想法是先评估每个客户的最小和最大日期，然后在相应的记录之间执行联接：

WITH cte AS(
  SELECT [Customer Code_Transaction]) AS CustomerCode
        ,min([Invoice Date_Transaction]) AS MinDate
        ,max([Invoice Date_Transaction]) AS MaxDate
    FROM [yourtable...]
    GROUP BY [Customer Code_Transaction]
)
SELECT t1.[Invoice Date_Transaction]
      ,t1.[Customer Code_Transaction]
      ,t1.[Customer Name_Transaction]
      ,t2.[Address_CustReport]
   FROM [yourtable...] AS t1
   JOIN cte AS c ON c.MinDate = t1.[Invoice Date_Transaction] AND c.CustomerCode = t1.[Customer Code_Transaction]
   JOIN [yourtable...] AS t2 ON t2.[Customer Code_Transaction] = c.[Customer Code_Transaction] AND t2.[Invoice Date_Transaction] = c.MaxDate