The max function is used to get the maximum valued item present in a sequence.
max($seq as item()*)
$seq − provided sequence. A sequence can contain 0 or more items.
let $items := (1,2,3,4,5,6) let $max := max($items) return <result> <max>{$max}</max> </result>
<result> <max>6</max> </result>
In order to test the above-mentioned functionality, replace the contents of books.xqy (mentioned in Environment Setup chapter) with the above XQuery expression and execute the XQueryTester java program to verify the result.