Oracle Database 11g: Building Oracle XML DB Applications

What Is Native xml Storage?

Native XMLType storage is essential to XML DB operations. Let’s start by learning a few key details about it.

Well-Formedness Rules

As a native XML object, XMLType only stores well-formed XML documents or XML fragments. The following is an example XML document (john_smith.xml):

<?xml version=“1.0” encoding=“UTF-8”?>

<contact xmlns=“http://xmlbook.com/sample/contact.xsd” id=“1”>

     <category>customer</category>

     <first_name Chinese=“”>John</first_name>

     <last_name>Smith</last_name>

     <email>[e-mail]</email>

</contact>

In the XML document, there are a set of tags (or markups), such as <contact> ...