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raysefo
Constraint Violating Yak Guru

257 Posts
Posted - 07/18/2006 :  09:52:26  Show Profile  Click to see raysefo's MSN Messenger address  Reply with Quote
Hi,

i have a datetime variable , lets say;

@date = 2006-07-18 16:51:13

and i wanna put zero to the seconds part of it, like this below;

@date = 2006-07-18 16:51:00

how can i do it?

thanks

RyanRandall
Flowing Fount of Yak Knowledge

United Kingdom
1074 Posts
Posted - 07/18/2006 :  09:57:18  Show Profile  Reply with Quote 

declare @date datetime
set @date = '20060718 16:51:13'

select @date as Date, dateadd(second, -datepart(second, @date), @date) as RoundedDownToMinute

/*results
Date                                                   RoundedDownToMinute                                    
------------------------------------------------------ ------------------------------------------------------ 
2006-07-18 16:51:13.000                                2006-07-18 16:51:00.000
*/


Ryan Randall
www.monsoonmalabar.com London-based IT consultancy

Solutions are easy. Understanding the problem, now, that's the hard part.
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Q
Yak Posting Veteran

Netherlands
76 Posts
Posted - 07/18/2006 :  10:00:03  Show Profile  Reply with Quote
@dateZero = dateadd(second, -1*datepart(second, @date), @date)
Edited by - Q on 07/18/2006 10:00:58
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Michael Valentine Jones
Yak DBA Kernel (pronounced Colonel)

USA
6997 Posts
Posted - 07/18/2006 :  11:33:32  Show Profile  Reply with Quote
The solutions already posted do not remove the milliseconds part of a datetime.

You can use the F_START_OF_MINUTE function in this link to do what you want:
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=64755


It does it this way:
select dateadd(ms,-(datepart(ss,@date)*1000)-datepart(ms,@date),@date)



CODO ERGO SUM
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RyanRandall
Flowing Fount of Yak Knowledge

United Kingdom
1074 Posts
Posted - 07/19/2006 :  07:33:05  Show Profile  Reply with Quote
Good point, Michael


Ryan Randall
www.monsoonmalabar.com London-based IT consultancy

Solutions are easy. Understanding the problem, now, that's the hard part.
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khtan
In (Som, Ni, Yak)

Singapore
16746 Posts
Posted - 07/19/2006 :  07:38:16  Show Profile  Reply with Quote
Another variation

declare @date datetime
set @date = '20060718 16:51:13.45'

select	dateadd(minute, datepart(minute, @date), dateadd(hour, datediff(hour, 0, @date), 0))

/* RESULT

	2006-07-18 16:51:00.000
*/


KH
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