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FunctX XQuery Functions

functx:previous-day

The previous day

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Description

The functx:previous-day function takes a date and returns a date representing the previous day.

The $date argument must be castable to xs:date, meaning that it must have the type xs:date or xs:dateTime, or be an xs:string or untyped value of the form YYYY-MM-DD.

Arguments and Return Type

NameTypeDescription
$date xs:anyAtomicType? the date
return value xs:date?

XQuery Function Declaration

See XSLT definition.
declare namespace functx = "http://www.functx.com";
declare function functx:previous-day
  ( $date as xs:anyAtomicType? )  as xs:date? {

   xs:date($date) - xs:dayTimeDuration('P1D')
 } ;

Examples

XQuery ExampleResults
functx:previous-day(xs:date('2004-01-23'))
2004-01-22
functx:previous-day(
     xs:dateTime('2005-01-01T12:00:13'))
2004-12-31

See Also

functx:next-dayThe next day

History

Published OnLast UpdatedContributor(s)
2006-06-272007-02-26Priscilla Walmsley, Datypic, pwalmsley@datypic.com, https://www.datypic.com
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