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MarkLogic 9 Product Documentation
op:case

op:case(
   $when as map:map+,
   $otherwise as item()*
) as map:map

Summary

This function returns the specified valueExpression if the specified valueExpression is true. Otherwise, it returns null.

Parameters
$when One or more op:when expressions.
$otherwise The value expression to return if none of the op:when expressions is true.

Example


xquery version "1.0-ml";

import module namespace op="http://marklogic.com/optic"
     at "/MarkLogic/optic.xqy";

let $employees := op:from-view("main", "employees")
 
return $employees
    => op:select(("EmployeeID", op:as("cased", op:case((
	              op:when(op:eq(op:col("EmployeeID"), 2), "second"),
	              op:when(op:eq(op:col("EmployeeID"), 3), "third")),
	              "otherwise"
	   ))))
    => op:result()

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