Comments on: SQL Puzzle: SQL Advance Query – Find the date of all third Sunday for Year 2017 https://www.dbrnd.com/2017/10/sql-puzzle-sql-advance-query-find-the-date-of-all-third-sunday-for-year-2017/ BIGData | NoSQL | MSSQL | MySQL | PostgreSQL Sat, 25 Aug 2018 11:54:15 +0000 hourly 1 https://wordpress.org/?v=7.0.6 By: Nitin patel https://www.dbrnd.com/2017/10/sql-puzzle-sql-advance-query-find-the-date-of-all-third-sunday-for-year-2017/#comment-6646 Sat, 25 Aug 2018 11:54:15 +0000 https://www.dbrnd.com/?p=6167#comment-6646 declare @startdate datetime =’01-01-2017′
declare @enddate datetime =’12-31-2017′
;with cte as
(
select CAst(dateadd(day,case datename(WEEKDAY,@startdate) when ‘Sunday’ then 14 when ‘Monday’ then 20 when ‘Tuesday’ then 19
when ‘wednesday’ then 18 when ‘thursday’ then 17 when ‘Friday’ then 16 else 15 end,@startdate) as datetime) dt1
union all
select cast(dateadd(day,case datename(WEEKDAY,( dateadd (day,-(DATEPART(dd,(eomonth(DATEADD (MONTH,1,dt1)))))+1,eomonth(DATEADD(MONTH,1,dt1))))) when ‘Sunday’ then 14 when ‘Monday’ then 20 when ‘Tuesday’ then 19
when ‘wednesday’ then 18 when ‘thursday’ then 17 when ‘Friday’ then 16 else 15 end, ( dateadd (day,-(DATEPART(dd,(eomonth(DATEADD (MONTH,1,dt1)))))+1,eomonth(DATEADD(MONTH,1,dt1))))) as datetime)
from cte where dt1< @enddate
)

select * from cte

]]> By: Dinesh.IS https://www.dbrnd.com/2017/10/sql-puzzle-sql-advance-query-find-the-date-of-all-third-sunday-for-year-2017/#comment-5956 Tue, 24 Oct 2017 05:34:51 +0000 https://www.dbrnd.com/?p=6167#comment-5956 Declare @StartDate DateTime
Declare @EndDate DateTime;

Set @StartDate=’2017/01/01′
Set @EndDate=’2017/12/31′
;
WITH CTE
As
(Select @StartDate As StartDate,DateName(DW,@StartDate) As Day_Name
Union All
Select DateAdd(Day,1,StartDate),DateName(DW,DateAdd(Day,1,StartDate)) As Day_Name
From CTE Where StartDate<@EndDate)
Select StartDate From (Select Row_Number()Over(Partition By Month(StartDate) Order By StartDate) As RSLNo,* From CTE Where Day_Name='SunDay') A
Where RSLNo=3
OPTION(MAXRECURSION 0)

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