Sql 采用日期范围的问题

我试图通过将w.adate1和w.adate2之间的日期范围取为

m1.tdate，从m1中取
m1.Price
之和。问题在于
m1。价格计算不正确。请检查SQL代码

with m1 as 
(
    select sum(c.price) as Price,c.tdate ,c.unit
    from Dim_stocks c 
    group by c.tdate ,c.unit
)
select
    sum(w.total) as cost,
    w.a_time,
    w.unit,
    sum(m1.Price) as price
from Target_Shipment w 
left join m1 on m1.tdate = w.a_time and m1.unit = w.unit
where m1.tdate between cast(DATEADD(month,DATEDIFF(month,0,w.a_time),0) as date) and w.a_time    
group by w.a_time, w.unit

尽管在不正确了解问题的情况下无法回答。需要样本数据。但是，您是否只想按日期获取总和（价格）组

with m1 as 
(
    select
        sum(c.price) over (partition by cast(c.tdate-DAY(c.tdate)+1 as date) order by tdate rows between unbounded preceding and current row) as Price
        , c.tdate, c.unit
    from Dim_stocks c 
)
select
    sum(w.total) as cost,
    w.a_time,
    w.unit,
    sum(m1.Price) as price
from Target_Shipment w 
left join m1 on m1.tdate = w.a_time and m1.unit = w.unit
where m1.tdate between cast(DATEADD(month,DATEDIFF(month,0,w.a_time),0) as date) and w.a_time    
group by w.a_time, w.unit

例如：

create table Dim_stocks(unit varchar(10), tdate date, price float);
insert into Dim_stocks values('MUM' ,'3/1/2021',    2010.3);
insert into Dim_stocks values('MUM' ,'3/1/2021',    4308.49);
insert into Dim_stocks values('MUM' ,'3/2/2021',    2690.75);
insert into Dim_stocks values('MUM' ,'3/5/2021',    3091.4);
insert into Dim_stocks values('COL' ,'2/10/2020',   4025.99);
insert into Dim_stocks values('COL' ,'2/28/2021',   4032.73);
insert into Dim_stocks values('COL' ,'2/1/2021',    3978.79);
insert into Dim_stocks values('COL' ,'11/23/2020',  4157.69);
insert into Dim_stocks values('PUN' ,'11/3/2020',   4032.13);
insert into Dim_stocks values('COL' ,'11/3/2020',   4025.99);
insert into Dim_stocks values('PUN' ,'11/1/2020',   4019.24);

select
    sum(c.price) over (partition by DATEADD(day, 1, EOMONTH(DATEADD(month, -1, c.tdate))) order by tdate rows between unbounded preceding and current row) as Price
    , c.tdate, c.unit
from Dim_stocks c 
     

输出：

价格
日期
单元
4025.99
2020-02-10
上校
4019.24
2020-11-01
双关语
8051.37
2020-11-03
双关语
12077.36
2020-11-03
上校
16235.05
2020-11-23
上校
3978.79
2021-02-01
上校
8011.52
2021-02-28
上校
2010.3
2021-03-01
妈妈
6318.79
2021-03-01
妈妈
9009.54
2021-03-02
妈妈
12100.94
2021-03-05
妈妈
向我们展示一些样本表数据和预期结果-全部为格式化文本（不是图像）。请分享一些样本代码“问题在于m1。价格计算不正确。”-您需要通过向我们展示样本数据、预期结果和实际结果来澄清这意味着什么。您好，感谢您的回复。您将源数据显示为一个表，但您的查询引用了两个表。我们已经提到了数据。。请检查并提出建议。谢谢我是按时间和单位分组的。但tdate需要通过“从每月第一天（tdate）到tdate”进行分组。示例：如果tdate为2020年3月17日，则价格应为“日期1stMarch20至17thMarch20的总和（价格）”明白了。我已经修改了我的答案。请检查。非常感谢您的输入，但在m1组中，by是在每月第一天（tdate）完成的，我们需要获取从每月第一天到tdate的范围。对这个pls有什么意见吗？