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Issue with date values.

Author

Topic

venkath
Posting Yak Master

202 Posts

Posted - 2007-03-14 : 12:00:05

Hi all

I have a column with date values as
2007-09-27 00:00:00.000

i am trying to update the column by adding 1 year to this column using

DATEADD(YEAR,1,DATECOLUMN) and getting it as

2008-09-27 00:00:00.000. But i need to update it as

2008-08-26 00:00:00.000..

How can i achieve this

Thanks

Michael Valentine Jones
Yak DBA Kernel (pronounced Colonel)

7020 Posts

Posted - 2007-03-14 : 12:20:55

A year after 2007-09-27 is 2008-09-27, so that looks correct.

Is sounds like adding a year is not actually your requirement. Maybe you could explain what it really is.

CODO ERGO SUM

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2007-03-14 : 13:45:24

SELECT DATEADD(DAY, 1, DATEADD(MONTH, 11, '20070927'))

Peter Larsson
Helsingborg, Sweden

Michael Valentine Jones
Yak DBA Kernel (pronounced Colonel)

7020 Posts

Posted - 2007-03-14 : 17:34:47

quote:
Originally posted by Peso

SELECT DATEADD(DAY, 1, DATEADD(MONTH, 11, '20070927'))

Peter Larsson
Helsingborg, Sweden

That returns 2008-08-28, not 2008-08-26.

Add 11 months and subtract 1 day?

CODO ERGO SUM

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2007-03-14 : 17:39:14

My mistake!

SELECT DATEADD(DAY, -1, DATEADD(MONTH, 11, '20070927'))

Peter Larsson
Helsingborg, Sweden

Lamprey
Master Smack Fu Yak Hacker

4614 Posts

Posted - 2007-03-14 : 17:57:58

Maybe...
SELECT DATEADD(MONTH, - 1, CAST('2007-09-27 00:00:00.000' AS DATETIME) + 365)

*shrug*

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2007-03-14 : 18:04:48

I wonder how that would work on leap years?

Peter Larsson
Helsingborg, Sweden

Lamprey
Master Smack Fu Yak Hacker

4614 Posts

Posted - 2007-03-14 : 18:49:26

quote:
Originally posted by Peso

I wonder how that would work on leap years?

Peter Larsson
Helsingborg, Sweden

I assume Poorly.. :) But, in the absence of requirements....

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