Beginning Microsoft SQL Server 2008 ... - S3 Tech Training

DAY
The DAY function returns an integer representing the day part of the specified date. The syntax is as follows:
DAY()
The DAY function is equivalent to DATEPART(dd, ).
GETDATE
The GETDATE function returns the current system date and time. The syntax is as follows:
GETDATE()
GETUTCDATE
The GETUTCDATE function returns the current UTC (Universal Time Coordinate) time. In other words,
this returns GMT (Greenwich Mean Time). The value is derived by taking the local time from the server,
and the local time zone, and calculating GMT from this. Daylight saving is included. GETUTCDATE cannot
be called from a user-defined function. The syntax is as follows:
ISDATE
GETUTCDATE()
The ISDATE function determines whether an input expression is a valid date. The syntax is as follows:
MONTH
ISDATE()
The MONTH function returns an integer that represents the month part of the specified date. The syntax is
as follows:
MONTH()
The MONTH function is equivalent to DATEPART(mm, ).
SYSDATETIME
Much like the more venerable GETDATE function, SYSDATETIME returns the current system date and
time. The differences are twofold: First, SYSDATETIME returns a higher level of precision. Second, the
newer function returns the newer datetime2 data type (to support the higher precision — a precision
of 7 in this case). The syntax is as follows:
SYSDATETIME()
Apendix A: System Functions
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