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getdate() - subtract 6 months

Posted on 2009-07-01
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Last Modified: 2012-05-07
I am using getdate() to return todays date.

How am i able to use getdate() and subtract 6 months from it?
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Question by:Mr_Shaw
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5 Comments
 
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chapmandew earned 200 total points
ID: 24755056
select dateadd(m, -6, getdate())
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Expert Comment

by:dwe761
ID: 24755089
select dateadd(m,6, getdate())
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Assisted Solution

by:dwe761
dwe761 earned 150 total points
ID: 24755112
I concede.  I went ahead 6 months.  chapmandew is correct.
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Assisted Solution

by:Chris Luttrell
Chris Luttrell earned 150 total points
ID: 24755180
chapmandew has the correct syntax to subtract 6 months.  The other one add 6 months.
Remember that getdate() will include the time portion and the dateadd function will change the date part and leave the time alone.  If you want the start of the day you have to use code like this for todays date:
select dateadd(d,datediff(d,0,getdate()),0)

and this for 6 months ago:
select dateadd(m, -6, dateadd(d,datediff(d,0,getdate()),0))
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Author Closing Comment

by:Mr_Shaw
ID: 31598796
thanks
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