如何计算所有记录并确定上次活动日期

问题描述

我是个新手，很抱歉，在此先感谢您！
我有这个查询，最终我想要：

1. 计算有多少客户
2. 计算最近60天内联系的客户数量
3. 与客户联系的地方，然后填充最后的F.call_dt，F.Last_Call_Date，F.call_nbr

样本数据：

Row...Terr......call_dt......Last_Call_Date.....call_nbr.....acct_#.....#_aligned.........contact.........compliance

1.......SR 1.......?................?.............?............6853.........1..............0.................0

2.......SR 1.......?................?.............?.............370.........1..............0.................0

3.......SR 1...6/23/2019....6/23/2019 .........75001..........784370........1..............1.................1  ** 

4.......SR 1.......?................?.............?...........784370........1..............0.................0

这就是我希望看到的：

Row...Terr......call_dt......Last_Call_Date.....call_nbr.....acct_#.....#_aligned.........contact.........compliance

1.......SR 1.......?................?..............?.............6853........1..............0................0

2.......SR 1.......?................?..............?..............370........1..............0................0

3.......SR 1...6/23/2019.......6/23/2019 .........75001........784370........1..............1................1

解决方法

在同事的帮助下，我通过添加以下合格的rank（）over（）语句来确保仅获得最新的last_call_dt信息，从而达到了预期的结果：

qualify rank() over (partition by terr,acct # order by call_dt) = 1

希望这对某人有帮助！