sql - 在 SQL Server 中获取给定周数、月数和年份的一周的日期范围

Question

我正在创建一个存储过程来根据周数、月份数和年份显示日期范围内的某些记录。

例如:

Month = 4 [APRIL]
Week  = 2 [Week 2 for APRIL]
Year  = 2017

输出应为:[开始日期应为星期日]

STARTDATE  |  END DATE
4-2-2017   |  4-8-2017

到处搜索，这个已经很难了。

编辑: 我提供了一个示例查询供引用

@Month int,
@Year int,
@WeekNumber int

SELECT
(start date of the week based on week num, month, year) as DATE1,
(end date of the week based on week num, month, year) as DATE2
WHERE
StartDate = (start date of the week based on week num, month, year)
EndDate = (end date of the week based on week num, month, year)

Answer 1

也许这会有所帮助。

2008 年更新的示例

Declare @Month int = 4
Declare @Year  int = 2017
Declare @Week  int = 2


Select DateR1 = min(RetVal)
      ,DateR2 = max(RetVal)
 From (
        Select *,WkNr = Dense_Rank() over (Order by DatePart(WEEK,RetVal))
         From (Select Top (40) RetVal=DateAdd(DD,-1+Row_Number() Over (Order By Number),cast(str((@Year*10000)+(@Month*100)+1,8) as date)) From  master..spt_values) D
      ) A
 Where WkNr=@Week

返回

DateR1      DateR2
2017-04-02  2017-04-08