GETFIRSTCHILD

The GETFIRSTCHILD function returns the first child node of a specified DOM node. If the node has no child nodes, it returns a null node handle; you can use ISNULL to check if the return value is null.

Syntax

DBMS_XMLDOM.getFirstChild (
   n IN DBMS_XMLDOM.DOMNODE);

Parameters

Return value

Handle of the first child node. If no child nodes exist, this handle is null.

Usage instructions

We recommend that you use ISNULL to check whether the return value is null, so as to avoid further operations on a null handle.

Examples

DECLARE
  n           DBMS_XMLDOM.DOMNODE;
  first_child DBMS_XMLDOM.DOMNODE;
BEGIN
  first_child := DBMS_XMLDOM.getFirstChild(n);
END;
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