将周差异转换为周日期SQL Server

Question

如何将所有星期的差异列值转换为每周的开始日期？

样本数据：

Week Diff | Value
1         | 20000
2         | 30000
3         | 40000

预期结果：

Week Diff | Value
6/24/2018 | 20000
6/17/2018 | 30000
6/10/2018 | 40000

我看过类似的帖子，但是我不明白如何根据自己的需要更改解决方案。例如

declare @wk int  = week_diff
select dateadd(week,@wk-1, DATEADD(wk, DATEDIFF(wk,-1,DATEADD(yy, DATEDIFF(yy,0,getdate()), 0)), 0))

请告知。

Answer 1

尝试一下：

select
    convert(date,DATEADD(wk, DATEDIFF(wk,0,getdate())-[Week Diff], 0))
from yourtable