File: Data.xml
<?xml version="1.0"?>
<BOOK InStock="true">
<TITLE>title 1</TITLE>
<AUTHOR>author 1</AUTHOR>
<BINDING>trade paperback</BINDING>
<PAGES>473</PAGES>
<PRICE>10.95</PRICE>
</BOOK>
File: Schema.xsd
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element name="BOOK">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="TITLE" type="xsd:string"/>
<xsd:element name="AUTHOR" type="xsd:string"/>
<xsd:element name="BINDING" type="xsd:string"/>
<xsd:element name="PAGES" type="xsd:positiveInteger"/>
<xsd:element name="PRICE" type="xsd:decimal"/>
</xsd:sequence>
<xsd:attribute name="InStock" type="xsd:boolean"
use="required"/>
</xsd:complexType>
</xsd:element>
</xsd:schema>
If an element does not contain any character data, it?considered empty.
<xsd:element name="mark">
<xsd:complexType/>
</xsd:element>
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