Calculate and display start and end dates of each week within a quarter: Microsoft, MS SQL Server, 2000, T-SQL

Calculate and display start and end dates of each week within a quarter

Asked by: TejNit

Hello Experts,

I would like help in creating all the week start date and end dates that fall within a quarter for each month. For the first week of the month within a quarter the start date of the week will be the first of that month irrespective of the day it falls on and the week ends on the Saturday but for the subsequent weeks within the month the start day of the should be Sunday. I found some codes in this website and put together what I need but I am stuck at the week calculation.

Appreciate your help on this.

Thanks.

Declare @InputDate datetime
Set @InputDate = '2008-09-22'
 
Select Case when Datepart(Q,@InputDate) = 1 then 'Q1'
			when Datepart(Q,@InputDate) = 2 then 'Q2'
			when Datepart(Q,@InputDate) = 3 then 'Q3'
			when Datepart(Q,@InputDate) = 4 then 'Q4'
		end as Quarter
		,CAST(YEAR(@InputDate) AS VARCHAR(4)) +
                       CASE WHEN MONTH(@InputDate) IN ( 1,  2,  3) THEN '/01/01'
                            WHEN MONTH(@InputDate) IN ( 4,  5,  6) THEN '/04/01'
                            WHEN MONTH(@InputDate) IN ( 7,  8,  9) THEN '/07/01'
                            WHEN MONTH(@InputDate) IN (10, 11, 12) THEN '/10/01'
                       END
			as QuarterStartDate
		,CAST(YEAR(@InputDate) AS VARCHAR(4)) +
                       CASE WHEN MONTH(@InputDate) IN ( 1,  2,  3) THEN '/03/31'
                            WHEN MONTH(@InputDate) IN ( 4,  5,  6) THEN '/06/30'
                            WHEN MONTH(@InputDate) IN ( 7,  8,  9) THEN '/09/30'
                            WHEN MONTH(@InputDate) IN (10, 11, 12) THEN '/12/31'
                       END
			as QuarterEndDate
		,dateadd( month, datediff( month, 0, @InputDate ), 0 ) as BeginMonth
		,Cast(convert(varchar(10),@InputDate,120)as datetime)-
			datepart(dw, cast(convert(varchar(10),@InputDate,120)as datetime))+1 as StartofWeek
		,Cast(convert(varchar(10),@InputDate,120)as datetime)-
			datepart(dw, cast(convert(varchar(10),@InputDate,120)as datetime))+7 as EndofWeek

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Start Date End Date Sum(minutes) 7/1/2008 7/5/2008 7/6/2008 7/12/2008 7/13/2008 7/19/2008 7/20/2008 7/26/2008 7/27/2008 7/31/2008 8/1/2008 8/2/2008 8/3/2008 8/9/2008 8/10/2008 8/16/2008 8/17/2008 8/23/2008 8/24/2008 8/30/2008 8/31/2008 8/31/2008 9/1/2008 9/6/2008 9/7/2008 9/13/2008 9/14/2008 9/20/2008 9/21/2008 9/27/2008 9/28/2008 9/30/2008

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Calculate and display start and end dates of each week within a quarter

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Microsoft

MS SQL Server

2000

T-SQL

MS SQL Server

Microsoft Development

PL / SQL

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