Question

嗨，我有一个包含以下字段的表格：

客户编号
Customerpaydate
金额

我需要帮助来检索最近的交易，但不能重复输入客户ID。

感谢您的帮助

Answer 1

要提取最近的交易客户，相关子查询应完成工作：

select t.*
from mytable t
where customerpaydate = (
    select max(Customerpaydate) from mytable t1 where t1.customerid = t.customerid      
)

Answer 2

这将为您提供最高工资日期

 SELECT MAX(customerpaydate) as d 
 FROM table

这将为您提供客户的最高付款日期

 SELECT customerid, max(customerpaydate) as d 
 FROM table 
 GROUP BY customerid

这将为您提供最新的交易

 SELECT *
 FROM TABLE
 where customerpaydate = (SELECT MAX(customerpaydate) as d FROM table)

这将为您提供每个客户的最新交易

 SELECT *
 FROM TABLE
 JOIN (
    SELECT customerid, max(customerpaydate) as d 
    FROM TABLE 
    GROUP BY customerid
 ) AS S ON S.customerid = TABLE.customerid and S.d = TABLE.customerpaydate

SQL查询MS Access上的最后一笔交易

2 个答案: