Like for like analysis in SQL 即对所有商店的销售额求和，不包括新开的和关闭的商店

Question

我想like for likeanalysis in SQL Server。例如，我想 sum up the sales of all the stores with sales>0 在整个时间段内（不包括新店或关闭店的销售额）。有没有简单的方法？

只有 sales of store 1 and 3 应该包括在总和中，因为只有这两家商店在所有三个时期都有销售额。 Store 2应该排除在外，因为它是NEW而不是第一期的运行。 Store 4 应该排除在外，因为它已关闭（不是 period 3 中的运行）。

Answer 1

此代码应 return 预期结果：

select
period,
sum(sales) as Sum
from
(
 select
 period,
 count(*) over (partition by store) as period_count,
 sales from table1
) data
where data.period_count=3
group by period

在条件："where data.period_count=3" 中，3 是商店必须存在的所需期间数（因此它不包括新的和关闭的商店）。

以下是使用 CTE 的代码 - 处理给定商店和期间的多个销售记录并显示期间的商店编号：

;with table2 as
(select 
 store, 
 period,
 count(*) over (partition by store) as period_count,
 sum(sale) as sale 
 from table1
 group by store, period)
select
period,
count(store) as StoreNumber,
sum(sale) as Sum
from table2
where 
table2.period_count=(select top 1
count(*) from table2
group by store
order by count(*) desc
)
group by period

Answer 2

你也可以看看这个。我还添加 Max(period)

declare @s table(store int, period int, sales int)

insert into @s values 
(1,1,142),
(1,2,109),
(1,3,126),
(2,2,133),
(2,3,123),
(3,1,114),
(3,2,171),
(3,3,125),
(4,1,199),
(4,2,121)

select store from @s group by store having count(period) > 2

select 
period , MAX(Period), sum(sales)
from @s where 
store in (
select store from @s group by store having count(period) > 2
)
group by period

Like for like analysis in SQL 即对所有商店的销售额求和，不包括新开的和关闭的商店

Like for like analysis in SQL i.e. sum the sales of all stores excluding new and closed stores

sql

sql-server-2012