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GETDATE() -vs- fn NOW()


GETDATE() -vs- fn NOW()

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Bob Bridges-173967
Bob Bridges-173967
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Can someone help me understand when it is better to use GETDATE() as opposed to fn NOW()?

I obviously get the same result when I run them in Query Analyzer but I can't find any documentation concerning when you should use one over the other.

Thanks,

Bob Bridges


Ninja's_RGR'us
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Actually now() is not a standard sql function.. are you sure that now is note a view or a user defined function that returns the getdate() value??
Bob Bridges-173967
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In Query Analyzer, I get the exact same results from the following two queries...

SELECT {fn NOW()}

SELECT GETDATE()


ron k
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Using sql server 2000

Select Now()

------------------------
Server: Msg 195, Level 15, State 10, Line 1
'now' is not a recognized function name.


ron k
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...And so do I ?


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I agree that it returns the same thing.. but I can't find any reference of it in the books online nor yahoo... So I guess it's an undocumented command that returns the date. So that would be my reason not to use it .
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Here's something my googling fished out...

Conversion of "NOW()" Access datatype in SQL Server 2000 datatype - GETDATE()







**ASCII stupid question, get a stupid ANSI !!!**
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Don't know why it says datatype and not function though...

Don't shoot - I'm only the messenger!







**ASCII stupid question, get a stupid ANSI !!!**
Michael Du Bois
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Now() is used in both EXCEL and ACCESS to return the current date and time.

But it is undocumented in T-SQL a sure road to trouble.

HTH Mike


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In addition to several replies advising to stay away from such undocumented features I did get this reply to my post on a ms newsgroup:


Anith Sen Jul 14 2003, 4:02 pm show options

GETDATE() is a T-SQL specific function which returns the current system date
and time. The SQL standard equivalent is CURRENT_TIMESTAMP which is
applicable in T-SQL as well. The {fn Now()} is an ODBC canonical function
which can be used in T-SQL since the OLE DB provider for SQL Server supports
them. There are no notable performance difference between these though. You
can also use canonical format like :

SELECT {fn CURRENT_TIMESTAMP()} AS "date & time",
{fn CURRENT_DATE()} AS "date only",
{fn CURRENT_TIME()} AS "time only" ;


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