Understanding Days in SQL - SQL Server Forums

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Understanding Days in SQL

Author

Topic

jrobin747
Starting Member

48 Posts

Posted - 2013-08-23 : 10:34:48

I'm trying to understand the logic of days in SQL
If today, I wanted to get a count for a day, to accurately do that
would my date range be yesterdays date and tomorrows date.

MuMu88
Aged Yak Warrior

549 Posts

Posted - 2013-08-23 : 11:04:15

Depends on what you need, try this for your self and then decide:
[CODE]
DECLARE @BeginDate DATE = '20130801'

SELECT DATEDIFF(dd, @BeginDate, GetDate());

[/CODE]

Refer to http://technet.microsoft.com/en-us/library/ms189794.aspx
for more information.

Ifor
Aged Yak Warrior

700 Posts

Posted - 2013-08-23 : 11:05:23

[code]
WHERE YourDate >= DATEADD(d, DATEDIFF(d, 0, CURRENT_TIMESTAMP), 0) -- today at 00:00:00
AND YourDate < DATEADD(d, DATEDIFF(d, 0, CURRENT_TIMESTAMP), 1) -- tomorrow at 00:00:00
[/code]

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2013-08-26 : 06:42:48

You can find more examples at http://beyondrelational.com/modules/2/blogs/70/posts/10899/understanding-datetime-column-part-iii.aspx

Madhivanan

Failing to plan is Planning to fail

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-08-27 : 01:41:02

see the comparison of different date range logic here

http://visakhm.blogspot.in/2012/12/different-ways-to-implement-date-range.html

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