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How_To_XML_Create_Nested_XML_Document

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How to create nested elements in an XML document?

An XML document can be thought of as a database containing records. In the example, the <book> element is the table that holds the child elements that have fields such as <title> or <location>.

Nested elements mean that child elements can contain further child elements themselves such as the <location> element has the <department> and <room> child elements in the example.

<?xml version="1.0"?>
<books>
   <book>
	<title>OpenGL Programming Guide Fourth Edition</title>
	<ISBN>0321173481</ISBN>
	<author>Michael R. Sweet</author>			
	<location>
		<department>Development</department>
		<room>107</room>
	</location>
	<publisher>Addison-Wesley</publisher>
	<year>2004</year>
   </book>
   <book>
	<title>Curves and Surfaces for CAGD: A Practical Guide</title>
	<ISBN>0849371643</ISBN>
	<author>Gerald Farin </author>
	<location>
		<department>Development</department>
		<room>116</room>
	</location>
	<publisher>Academic Press</publisher>
	<year>2002</year>
   </book>
   <book>
	<title>An Introduction to NURBS: With Historical Perspective</title>
	<ISBN>1558606696</ISBN>
	<author>David Rogers</author>
	<location>
		<department>Development</department>
		<room>120</room>
	</location>
	<publisher>Academic Press</publisher>
	<year>2001</year>
   </book>
   <book>
	<title>NURBS: From Projective Geometry to Practical Use</title>
	<ISBN>1568810849</ISBN>
	<author>Gerald Farin</author>
	<location>
		<department>Development</department>
		<room>126</room>
	</location>
	<publisher>A K Peters</publisher>
	<year>1999</year>
   </book>
</books>

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