INSERTCHILDXMLAFTER

Syntax

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Description of the illustration ''insertchildxmlafter.gif''

Purpose

INSERTXMLCHILDAFTER inserts one or more collection elements as children of target parent elements. The insertion for each target occurs immediately after a specified existing collection element. The existing XML document that is the target of the insertion can be schema-based or non-schema-based.

  • XMLType_instance identifies the XML data that is the target of the insertion.

  • XPath_string locates the parent elements within target-data; child-data is inserted under each parent element.

  • child_expr is a relative XPath 1.0 expression that locates the existing child that will precede the inserted child-data. It must name a child element of the element indicated by parent-xpath, and it can include a predicate.

  • value_expr is the XMLType child element data to insert. Each top-level element node in this argument must have the same data type as the element indicated by child_expr.

  • The optional namespace_string specifies the namespace for the parent elements, existing child element, and child element XML data to be inserted.

See Also:

Oracle XML DB Developer's Guide for more information about this function

Examples

The following example is similar to that for INSERTCHILDXML, but it adds a third /Owner node after the /Owner node added in the other example. The output of the query has been formatted for readability.

UPDATE warehouses
  SET warehouse_spec = INSERTCHILDXMLAFTER(warehouse_spec, '/Warehouse/Building',
    'Owner[2]', XMLType('<Owner>ThirdOwner</Owner>'))
  WHERE warehouse_id = 3;

SELECT warehouse_name,
       EXTRACT(warehouse_spec, '/Warehouse/Building/Owner') "Owners"
  FROM warehouses
  WHERE warehouse_id = 3;

WAREHOUSE_NAME                      Owners
----------------------------------- ------------------------------
New Jersey                          <Owner>GrandCo</Owner>
                                    <Owner>LesserCo</Owner>
                                    <Owner>ThirdOwner</Owner>