MarkLogic 12 Product Documentationxdmp:node-insert-before
xdmp:node-insert-before( $sibling as node(), $new as node() ) as empty-sequence()
Summary
Adds an immediately preceding sibling to a node.
| Parameters | |
|---|---|
| sibling | The sibling node to be preceded by the new node. |
| new | The new node to be inserted. |
Usage Notes
Attribute nodes cannot be preceded by non-attribute nodes. Non-attribute nodes cannot be preceded by attribute nodes. Element nodes cannot have document node children. Document nodes cannot have multiple roots. On-the-fly constructed nodes cannot be updated.Example
(: create a document :)
xdmp:document-insert("/example.xml",
<a><b>bbb</b></a>);
(: add a c node before the b node :)
xdmp:node-insert-before(fn:doc("/example.xml")/a/b,
<c>ccc</c>);
(: look at the new document :)
fn:doc("/example.xml")
=>
<?xml version="1.0" encoding="UTF-8"?>
<a><c>ccc</c><b>bbb</b></a>