如何计算环比和同比？

Question

我需要获取所有度量标准列的MoM和YoY值。 MoM列应具有上个月的值，同样的情况与YoY相同。 我可以用一个维度来做，但因为有很多维度所以得到错误的信息。

下面是我为所有维度添加过滤器时正在运行的查询： -

SELECT section,region,country,type,device,month,page_views,
LAG(page_views, 1) OVER (ORDER BY month) as MoM,
LAG(page_views, 12) OVER (ORDER BY month) as YoY
FROM table_name
Where region = 'RUCIS'
 and Country = 'Russia'
 and section ='METRICS' 
 and type_visits = 'All Visits'
 and device = 'Non Mobile Devices'

哪个工作正常但如果我删除where条件，因为有许多地区和许多国家，在这种情况下它不起作用。

以下是一些示例数据

我怎么能为所有维度做到这一点？

Answer 1

如果代码使用where子句，但您希望它在没有代码的情况下正常工作，那么您可以使用partition by：

SELECT section, region, country, type, device, month, page_views,
       LAG(page_views, 1) OVER (PARTITION BY section, region, country, type_visits, device
                                ORDER BY month) as MoM,
       LAG(page_views, 12) OVER (PARTITION BY section, region, country, type_visits, device
                                 ORDER BY month) as YoY
FROM table_name
WHERE region = 'RUCIS' and
      Country = 'Russia' and
      section ='METRICS' and
      type_visits = 'All Visits' and
      device = 'Non Mobile Devices';

您现在应该可以删除WHERE条款或根据您的需要进行调整。