Precision required

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Precision required

DavidBridgeTechnology.com

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March 13, 2013 at 8:39 pm

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Comments posted to this topic are about the item Precision required
David Bridge
David Bridge Technology Limited
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March 14, 2013 at 4:09 am

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demonfox SSCertifiable Points: 6289 More actions · Answer 1

an easy one for the day !!!

thanks for the question

~ demonfox
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Wondering what I would do next , when I am done with this one :ermm:

Lokesh Vij SSChampion Points: 10836 More actions · Answer 2

demonfox (3/13/2013)
an easy one for the day !!!
thanks for the question

+1

Thanks David!

~ Lokesh Vij

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kapil_kk SSC-Insane Points: 21316 More actions · Answer 3

easy +1 🙂

_______________________________________________________________
To get quick answer follow this link:
http://www.sqlservercentral.com/articles/Best+Practices/61537/

Dineshbabu Hall of Fame Points: 3220 More actions · Answer 4

I thought smalldatetime will round off to next day only if there is 2 seconds difference and answered both will return day as 24.

--
Dineshbabu
Desire to learn new things..

SQLRNNR SSC Guru Points: 281334 More actions · Answer 5

Lokesh Vij (3/13/2013)
demonfox (3/13/2013)
an easy one for the day !!!
thanks for the question
+1
Thanks David!

+2

Jason...AKA CirqueDeSQLeil
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I have given a name to my pain...MCM SQL Server, MVP
SQL RNNR
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Vinay Kumar SSCertifiable Points: 6099 More actions · Answer 6

Thanks David Bridge for good and interesting question. 🙂

Thanks
Vinay Kumar
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Keep Learning - Keep Growing !!!

Toreador SSChampion Points: 11368 More actions · Answer 7

Most disappointing. I was sure when I got to the thread I'd see several pages of identical replies saying that it gives an error about assigning variables in the declare statement. What is the world coming to?!

Richard Warr SSCertifiable Points: 6967 More actions · Answer 8

Interestingly, if I run the code, I get:

Msg 242, Level 16, State 3, Line 1

The conversion of a varchar data type to a datetime data type resulted in an out-of-range value.

But if I change the first line to DECLARE @Datetime datetime = '2013-02-24T23:59:30' then it works as expected.

What do I have that is different (I'm in the UK if that helps)?

Hugo Kornelis SSC Guru Points: 64790 More actions · Answer 9

Richard Warr (3/14/2013)
What do I have that is different (I'm in the UK if that helps)?

Locale settings.

Contrary to popular belief, yyyy-mm-dd hh:mm:ss and yyyy-mm-dd are NOT a guaranteed safe date format. This can, in some locales, still be interpreted as yyyy-dd-mm.

The only guaranteed safe formats for datetime are:

* yyyymmdd for date only; no seperators.

* yyyy-mm-ddThh:mm:ss or yyyy-mm-ddThh:mm:ss.ttt (where ttt is thousands of a second) for date and time; the dashes, uppercase T, colons (and dot in the second version) are all required seperators.

For the date data type, rules have changed slightly. I know both yyyy-mm-dd and yyyymmdd are guaranteed for date. I don't know if there are more changes.

Hugo Kornelis, SQL Server/Data Platform MVP (2006-2016)
Visit my SQL Server blog: https://sqlserverfast.com/blog/
SQL Server Execution Plan Reference: https://sqlserverfast.com/epr/

(Bob Brown) SSCrazy Points: 2705 More actions · Answer 10

Thanks for the question. I need review with date types.

Richard Warr SSCertifiable Points: 6967 More actions · Answer 11

Hugo Kornelis (3/14/2013)
Richard Warr (3/14/2013)
What do I have that is different (I'm in the UK if that helps)?
Locale settings.
Contrary to popular belief, yyyy-mm-dd hh:mm:ss and yyyy-mm-dd are NOT a guaranteed safe date format. This can, in some locales, still be interpreted as yyyy-dd-mm.
The only guaranteed safe formats for datetime are:
* yyyymmdd for date only; no seperators.
* yyyy-mm-ddThh:mm:ss or yyyy-mm-ddThh:mm:ss.ttt (where ttt is thousands of a second) for date and time; the dashes, uppercase T, colons (and dot in the second version) are all required seperators.
For the date data type, rules have changed slightly. I know both yyyy-mm-dd and yyyymmdd are guaranteed for date. I don't know if there are more changes.

Thank you Hugo. Pleased to say that I always use the "T" format (which I believe to be ISO) and encourage colleagues to do the same!

kapil_kk SSC-Insane Points: 21316 More actions · Answer 12

Richard Warr (3/14/2013)
Hugo Kornelis (3/14/2013)
Richard Warr (3/14/2013)
What do I have that is different (I'm in the UK if that helps)?
Locale settings.
Contrary to popular belief, yyyy-mm-dd hh:mm:ss and yyyy-mm-dd are NOT a guaranteed safe date format. This can, in some locales, still be interpreted as yyyy-dd-mm.
The only guaranteed safe formats for datetime are:
* yyyymmdd for date only; no seperators.
* yyyy-mm-ddThh:mm:ss or yyyy-mm-ddThh:mm:ss.ttt (where ttt is thousands of a second) for date and time; the dashes, uppercase T, colons (and dot in the second version) are all required seperators.
For the date data type, rules have changed slightly. I know both yyyy-mm-dd and yyyymmdd are guaranteed for date. I don't know if there are more changes.
Thank you Hugo. Pleased to say that I always use the "T" format (which I believe to be ISO) and encourage colleagues to do the same!

I have never used this 'T' format :w00t:

_______________________________________________________________
To get quick answer follow this link:
http://www.sqlservercentral.com/articles/Best+Practices/61537/

db4breakfast Ten Centuries Points: 1097 More actions · Answer 13

I have never used this 'T' format :w00t:

I need a review on SQL Server format.

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Hai Ton
My Db4Breakfast blog.