
sql:datepart( $datepart as xs:string?, $date as xs:genericDateTimeArg ) as xs:integer?
Returns an integer that represents the specified datepart of the specified
date.
If datepart or date is the empty sequence, the
function returns the empty sequence.
This function is only available for use within SQL; it is not available directly from XQuery, XSLT, or JavaScript.
select datepart('yy','2007-10-30T12:15:32.1234567+05:10')
returns 2007
sql:datepart("dayofyear",'2007-10-30T12:15:32.1234567+05:10')
returns 303