贝尔曲线计算和SQL查询

Question

我正在尝试从以下数据创建钟形曲线报告。

如何从上述数据中计算每周一天的星期一到星期日产生的金额。

以下是我期待的输出

根据日期时间显示数据。

Answer 1

如果您只想在整周数据集中查找星期几的分组，则可以使用以下查询：

select
    wk.dow      [day of week]
    , d.rt      [day Total]
from
(select datename(weekday, createdon) dow
    , sum(qty) rt
from table d
group by datename(weekday, createdon)) d
    right join (select 'Monday' dow
                union all 
                select 'Tuesday'
                union all
                select 'Wednesday'
                union all
                select 'Thursday'
                union all
                select 'Friday'
                union all
                select 'Saturday'
                union all
                select 'Sunday') wk on d.dow = wk.dow

虽然我有一种感觉，你正在寻找这个问题：

select datepart(week, createdon)        [week nr]
    , datename(weekday, createdOn)      [day of week]
    , dd.rt                             [running total]
from table d
    cross apply (select sum(qty) rt from table dd where dd.createdOn <= d.createdOn) dd
order by createdon
    , datepart(week, createdon)

Answer 2

for 2012 version

SELECT FORMAT(B,'dddd') , sum(a) as toalamount
FROM #A
GROUP BY FORMAT(B,'dddd')

代替你需要用createdon和a替换数量 那么你将得到以上结果