XQuery Sequences Functions
XQuery Sequences Functions
The following table lists the commonly used sequence functions provided by XQuery.
| Name | Description |
|---|---|
count($seq as item()*) | It is used to count the items in a sequence. |
sum($seq as item()*) | It is used to return the sum of the items in a sequence. |
avg($seq as item()*) | It is used to return the average of the items in a sequence. |
min($seq as item()*) | It is used to return the minimum valued item in a sequence. |
max($seq as item()*) | It is used to return the maximum valued item in a sequence. |
distinct-values($seq as item()*) | It returns select distinct items from a sequence. |
subsequence($seq as item()*, $startingloc as xs:double, $length as xs:double) | It is used to return a subset of provided sequence. |
insert-before($seq as item()*, $position as xs:integer, $inserts as item()*) | It is used to insert an item in a sequence. |
remove($seq as item()*, $position as xs:integer) | It is used to remove an item from a sequence. |
reverse($seq as item()*) | It is used to return the reversed sequence. |
index-of($seq as anyatomictype()*, $target as anyatomictype()) | It returns indexes as integers to indicate availability of an item within a sequence. |
last() | It returns the last element of a sequence when used in predicate expression. |
position() | It is used in FLOWR expressions to get the position of an item in a sequence. |
note
XSLT 2.0, XPath 2.0, and XQuery 1.0, share the same functions library.
A complete list of string functions is available at XSL Functions