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Datediff question


Datediff question

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Carlos Iglesias
Carlos Iglesias
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Because time is not infinite ... above all in milliseconds BigGrin

How to do?
tim_brimelow
tim_brimelow
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The explanation is a little lacking. The cause of the overflow error is the use of ms (millisecond)in the command. If another unit of time is used ie second, then no error will result. BOL actually state the maximum length of time. I will leave it to the reader to find this number. (Boy did I hate this statement at uni when I was studying mathematics!)
Carlos Iglesias
Carlos Iglesias
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declare @timems numeric
select @timems =(cast(datediff (dd,getdate()-28,getdate()) as numeric)* 86400000)
select @timems
--86400000 msxday
Kangana Beri
Kangana Beri
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The following will work even for the ms (milli second) unit of time:

select datediff (ms,getdate()-24,getdate())

Explanation can be found at:
http://technet.microsoft.com/en-us/library/ms189794.aspx
J-440512
J-440512
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Nothing worth "bragging" about. All I had to do was run that query in the Query Analyzer.
And got the answer instantanewously, no delay at all.

So, such trick questions buying "braging" rigths are just too easy.

Doze
Carlos Iglesias
Carlos Iglesias
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Practically all the questions are answered using a query analyzer and/or a google search, but this isn't the way to answer them ... we aren't at school Tongue
Iwas Bornready
Iwas Bornready
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Thanks for the question.
Iwas Bornready
Iwas Bornready
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I agree with the other posts. The problem is the ms and this isn't really discussed in the answer.
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