Salesforce Marketing Cloud SQL PIVOT

Question

我正在尝试在SFMC中创建一个枢轴，以将多行合并为一列。查询正在成功运行，但没有正确填充。我的表有2列：电子邮件地址和product_sku。每个电子邮件地址在表格中显示3次，旁边带有一个不同的product_sku。我希望输出具有唯一的电子邮件地址，并带有3个product_skus

示例文件：

电子邮件| [email protected] | [email protected] | [email protected] | 0953242425352

示例输出示例：

电子邮件| product_sku_header_1 | product_sku_header_2 | product_sku_header_3-------------------------------------------------- [email protected] | 12314321131412 | 45353643645 | 0953242425352

我的查询是：

select
email
, sum(case when product_sku ='%' then 1 else 0 end) as product_sku_header_1
, sum(case when product_sku ='%' then 1 else 0 end) as product_sku_header_2
, sum(case when product_sku ='%' then 1 else 0 end) as product_sku_header_3
FROM data_extension
group by 
email

提前感谢！

Answer 1

您可以使用row_number()进行条件聚合：

select email,
       max(case when seqnm = 1 then product_sku end) as  product_sku_header_1,
       max(case when seqnm = 2 then product_sku end) as  product_sku_header_2,
       max(case when seqnm = 3 then product_sku end) as  product_sku_header_3
from (select de.*,
             row_number() over (partition by email order by product_sku) as seqnum
      from data_extension de
     ) de
group by email;