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

Yields:
YEAR
SELECT TODATETIMEOFFSET(@OurDateTimeTest, ‘-07:00’);
----------------------------------
1/1/2008 12:54:00 PM -07:00
(local)(sa): (1 row(s) affected)
The YEAR function returns an integer that represents the year part of the specified date. The syntax is as
follows:
YEAR()
The YEAR function is equivalent to DATEPART(yy, ).
Hierarchy Functions
As mentioned before, the new implementation of hierarchyIDs is somewhat beyond the scope of this
title. For detailed explanations on the use of the following functions please refer to the professional version
of this book. For now we will just list, and briefly describe, the functions provided by SQL Server
2008 to assist in working with the hierarchyIDs and the trees associated with them.
GetAncestor
The GetAncestor function returns the hierarchyID of n th ancestor of the item in question. The syntax is
as follows:
GetAncestor()
The parameter passed in determines how many levels up the hierarchy chain you wish to retrieve descendants
from. For example, 1 would return children of the item in question, 2 would return the grandchildren,
and 0 would return the hierarchyID of the item in question itself.
GetDescendant
Returns a child node of the parent.
GetLevel
Returns an integer that represents the depth of the node in the tree.
Apendix A: System Functions
609