Question

我有两列，想创建第三列。我想要创造的逻辑是; A列代表唯一的客户记录。对于基于A栏中的电子邮件或ID号的每个唯一客户，我想查看B列，如果有POS和Web混合，则第三列= MC，如果不是，那么非MC。

Column A             Column B   Column C
test@test.com         POS        MC
test@test.com         POS        MC
test@test.com         WEB        MC
test123@test.com      POS        not MC
123456                POS        MC
123456                WEB        MC 
123458                WEB        not MC

Answer 1

您可以在PROC SQL：

中执行此操作

proc sql ;
  create table want as
  select h1.A, h1.B, h2.UNIQUE_B, case when h2.UNIQUE_B = 1 then 'Not MC' else 'MC' end as MC
  from have h1
       left join
       (select A, count(distinct(B)) as UNIQUE_B
        from have
        group by A) h2 on h1.A = h2.A 
  order by h1.A ;
quit ;

Answer 2

好的，所以我理解，A列是＆＃34; ID＆＃34;和B列是＆＃34;频道＆＃34;在我的数据集中，我已经相应地更改了代码，但是日志在模糊不清中引发了一些错误，所以我想我在这里错过了你的引用。代码看起来是否正确？

proc sql ;
  create table Aimee.MCreport as
  select ID, Channel, Channel.UNIQUE_Channel, case when Channel.UNIQUE_Channel = 1 then 'Not MC' else 'MC' end as MC
  from Aimee.Weekly_Email_files_cleaned3 ID
       left join
       (select ID, count(distinct(Channel)) as UNIQUE_Channel
        from Aimee.Weekly_Email_files_cleaned3
        group by ID) Channel on ID = Channel
  order by ID ;
quit ;

如何根据多种条件创建新列？

2 个答案: