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Don't forget this date.


Don't forget this date.

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Hugo Kornelis
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*groan*


Hugo Kornelis, SQL Server MVP
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Paul White
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vk-kirov (4/2/2010)
Why the question specifies the slash datetime format (yyyy/mm/dd) while all the answers are in the dash datetime format (yyyy-mm-dd)? This is completely misleading and incorrect! :-P

Awesome! Very funny Laugh



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vk-kirov
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By the way, which event took place on 1776-01-01?
Daniel Bowlin
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I knew the answer, but I didn't know the bit about the Gregorian calendar....interesting.
sjimmo
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My only complaint is that it is true.

Had to do a conversion back in 6.5 days, and maintain dates going back to 1600's. Had to be a bit creative on that;-)

Good question

Steve Jimmo
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Carla Wilson-484785
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SanjayAttray (4/2/2010)
The ultimate guide to the datetime datatypes

http://www.karaszi.com/SQLServer/info_datetime.asp#Why1753


Sanjay,
Thank you for the excellent reference, and its explanation of "Why 1753".

-c
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Hi all,

This is an extrapolated question from the actual QoD, but I would like to know the reason (coz of knowledge gaining reason)

Why the 'mmm' part in the RESULT section giving a different value than I entered through the character string as shown below.

SET DATEFORMAT MDY
DECLARE @dmy datetime
SELECT @dmy = '12/31/99 12:13:12:012'
SELECT @dmy

RESULT:
1999-12-31 12:13:12.013


Thanks
big[M]

John
Hugo Kornelis
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bigM (4/2/2010)
Hi all,

This is an extrapolated question from the actual QoD, but I would like to know the reason (coz of knowledge gaining reason)

Why the 'mmm' part in the RESULT section giving a different value than I entered through the character string as shown below.

SET DATEFORMAT MDY
DECLARE @dmy datetime
SELECT @dmy = '12/31/99 12:13:12:012'
SELECT @dmy

RESULT:
1999-12-31 12:13:12.013


Thanks
big[M]

The accuracy of datetime is not to the millisecond, but to 1/300 of a second. So each second is divided into 300 slices of 3 1/3 milliseconds. And because display uses milliseconds, you see the values rounded to the millisecond: 0.000, 0.003, 0.007, 0.010, 0.013, 0.017, .....


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Paul White NZ (4/2/2010)
I wonder how long it will be before someone complains that this QotD is misleading and incorrect since the question specifies "(yyyy/mm/dd)" format and the answers are all in YYYY-MM-DD format?

Laugh


Surprised it hasn't happened yet.



Jason AKA CirqueDeSQLeil
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Nice question.

Thanks



Jason AKA CirqueDeSQLeil
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