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Understanding DATEDIFF()
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À
16/04/2015 16:01:44
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Syntaxe SQL
Versions des environnements
SQL Server:
SQL Server 2012
Application:
Web
Divers
Thread ID:
01618557
Message ID:
01618564
Vues:
45
>If I have this:
>
>
>SELECT SUM(DATEDIFF(d,Holiday.Start,Holiday.End))
>
>
>...I can obtain 365.
>
>Now, if I change the type to s, to obtain this same amount in seconds:
>
>
>SELECT SUM(DATEDIFF(s,Holiday.Start,Holiday.End))
>
>
>...I obtain 23533200.
>
>However, If I do 23533200/84600, I do not obtain 365 days but only 272.38.
>
>What am I missing?

Do you always have Start and end as 12 AM ?
If it's not broken, fix it until it is.


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