Convert A Date To A Day Of The Week.

Nov 15, 2007

Hey, Im pretty sure this is possible, but let me know if it isnt.
I have a table of dates in the format "DD/MM/YYYY", is there a way of converting it to output the day of the week? for example 16/11/2007 would display Friday insted.
Thanks in advance John 

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Convert Week Number To Date Of 1st Day Of That Week...

Feb 2, 2008



I'm looking for a way to convert the [week number, year] back to the date for the 1st day of that week.

Example (assuming DATEFIRST has been set to 1) : Week 3, 2008 = January 14, 2008

Is there a SQL function that will do this?


Thanks,
Mike

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Apr 30, 2015

I want to convert date to week consider saturday is first day of week and friday is end of week. for input is orderdate and output should be week. example orderdate 11.04.15 to 17.04.15 week should be 16. orderdate 18.04.15 week should change to 17.

Order DateWeek
11-Apr-201516
12-Apr-201516
13-Apr-201516
14-Apr-201516
15-Apr-201516
16-Apr-201516
17-Apr-201516

Order DateWeek
18-Apr-201517

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Nov 3, 2006

Hi,

I don't know if this can be done, but hopefully one of the experts in this forum cna help me out.

I have a TimeOff table which contains 5 fields: timeoffID, employeename, startdate, enddate, and timofftype. I need to create a report which shows how many people take sick day (one of the timeofftypes) on each week day (i.e. Monday, Tuesday, Wednesday, and etc.) The problem is that I don't know how to convert the date range (from startdate to enddate) into indvidual week day for each timeoff record.

For example, on the table,

TimeoffID employeename startdate enddate timeofftype
1 Andy 11/02/2006 11/03/2006 Sick Day
2 Bill 11/03/2006 11/03/2006 Sick Day

The report needs to show:

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 0 0 1 2 0 0


Thank you in advance!

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Please help..

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Sep 21, 2006

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Donald.

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I'm wanting to see if there is a simpler way to accomplish the retrival of the first day of the week Date. What I currently have is:

CASE
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WHEN DATEPART(DW, GETDATE()) = 2 THEN DATEADD([D], - 8, GETDATE())
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I'm trying to figure if there might be an easier way to code this. Thanks.

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Hi,

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You help is appreciated.

Cheers

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Hi,

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Dec 1, 2005

Hi

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Thx in advance


//Mr

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Jan 17, 2008



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Thanks

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Oct 7, 2007

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I would like to use 'Expression' Or code function to do that
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Nov 19, 2001

I need SQL to determine what the date range for the previous week was, ie
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Thanx.

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Aug 5, 2004

Hi Guys,
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for the above query the date will be eg:26/06/2003

I really appreciate your Help

Thanks:confused: Find the Date if I know the week and year

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Nov 3, 2005

How do i automate, by stored procedure, generating the "week ending" date using a field data.

------------------------------------------------------------

CREATE TABLE [dbo].[t_Work_Hours] (
[WorkHoursID_PK] [int] IDENTITY (1, 1) NOT NULL ,
[PeopleID_FK] [int] NOT NULL ,
[JobID_FK] [int] NULL ,
[StartTime] [datetime] NULL ,
[EndTime] [datetime] NULL ,
[Title] [nvarchar] (1) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[WeekEnding] [datetime] NULL ,
CONSTRAINT [PK_t_Work_Hours] PRIMARY KEY CLUSTERED
(
[WorkHoursID_PK]
) ON [PRIMARY] ,
CONSTRAINT [FK_t_Work_Hours_t_Work_People] FOREIGN KEY
(
[PeopleID_FK]
) REFERENCES [dbo].[t_Work_People] (
[PeopleID_PK]
)
) ON [PRIMARY]
GO
-------------------------------------------------------

What i have tried has'nt even been close to a solution.
UPDATE dbo.t_Work_Hours
SET WeekEnding = DATETIME ( ??? , StartTime) . I have no idea where to go!

----------------------------------------------------------------
WorkHoursID_PK, PeopleID_FK, JobID_FK, StartTime, EndTime, Title, WeekEnding
7, 40, 3, 11/1/2005 6:00:00 AM, 11/1/2005 4:30:00 PM, J, (NULL)
8, 43, 3, 10/31/2005 6:00:00 AM, 10/31/2005 4:30:00 PM, F, 11/6/2005 11:59:00 PM
9, 43, 3, 11/1/2005 6:00:00 AM, 11/1/2005 4:30:00 PM, F, 11/6/2005 11:59:00 PM
-----------------------------------------------------------

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Apr 8, 2008

There should be only 52 weeks in a year unless there is a leep week(these should not happen on back to back years).
What is going wrong?

SET DATEFIRST 7

select DatePart(Week, 'Dec 29, 1998'), 'Dec 29, 1998'

union

select DatePart(Week, 'Dec 27, 1999'), 'Dec 27, 1999'

union

select DatePart(Week, 'Dec 24, 2000'), 'Dec 24, 2000'








week of year
date

53
24-Dec-00

53
27-Dec-99

53
29-Dec-98


In my database the following dates have all been assigned to week 53








Year
Month
Day

1985
12
30

1985
12
31

1986
12
30

1986
12
31

1987
12
28

1987
12
29

1987
12
30

1987
12
31

1988
12
27

1988
12
28

1988
12
29

1988
12
30

1989
12
31

1990
12
31

1991
12
30

1991
12
31

1992
12
28

1992
12
29

1992
12
30

1993
12
27

1993
12
28

1993
12
29

1993
12
30

1994
12
27

1994
12
28

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Code Snippet
CREATE PROCEDURE [dbo].[Testing_Out_Of_Stock_SKUS_WEEKLY]
(@Classification varchar(50))
AS
BEGIN
SELECT RC_STAT.dbo.Brand_Dimension.Report_Level,
RC_STAT.dbo.Brand_Dimension.[Cat vs Dog],
RC_STAT.dbo.Brand_Dimension.Item_Merged,
Qry_Sales_Group.Region_Key,
Qry_Sales_Group.Region,
Qry_Out_Of_Stock.product_structure_level,
Qry_Out_Of_Stock.product_entity_code,
Qry_Out_Of_Stock.cycle_day,
Qry_Out_Of_Stock.customer_code,
Qry_Out_Of_Stock.description,
Qry_Sales_Group.Code,
Qry_Sales_Group.SR_Name,
Qry_Sales_Group.Name AS Territory_Name,
Qry_Out_Of_Stock.Store_Name,
Qry_Out_Of_Stock.time_log,
Qry_Out_Of_Stock.out_of_stock,
Period_Code
FROM RC_STAT.dbo.Brand_Dimension INNER JOIN
dbo.Qry_Out_Of_Stock ON
RC_STAT.dbo.Brand_Dimension.Item_Key = dbo.Qry_Out_Of_Stock.product_entity_code COLLATE SQL_Latin1_General_CP1_CI_AS INNER JOIN
dbo.Qry_Sales_Group ON
dbo.Qry_Out_Of_Stock.sales_person_code = dbo.Qry_Sales_Group.SalesPerson_Purchaser_Code COLLATE Latin1_General_CI_AS
Where Classification=@Classification DateDiff(dd,0,dbo.Qry_Out_Of_Stock.time_log) =
case
when Datepart(Weekday, Getdate()) = 2 then datediff(dd,0,GetDate()) - 3
else datediff(dd,0,GetDate()) - 1
end


END
SET NOCOUNT OFF

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Mar 31, 2008

Hello all,

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AVG(RH) AS Expr4
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I'd like to do everything above but add to display only those records from 1/1/07 to 1/7/07...so a week's worth.

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Thank you very much.

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On a Tuesday I want to return data from the previous day (Monday to the up coming Sunday).
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Hi,


Can anybody tell me to How to get the week number of a specific Date in SQL Server 2005.

Like : say Date "03/01/2008" belongs to the 1st week of the year 2008, same way "21/02/2008" is 8th week of the year 2008.

So, the same way I need to know the week number of a given (variable) date.


I need to write / use a Function in SQL server which will return the Number (INT) (i.e. 1 or 8 or 10 etc...) against a specific (Parameter) date.

regards,

Saibal


Note : Please feel free to write me if my question is not clear.

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