book.xsd:
<?xml version="1.0" encoding="utf-8"?>
<xs:schema elementFormDefault="qualified" xmlns:xs="https://www.w3.org/2001/XMLSchema">
<xs:complexType name="book_type">
<xs:sequence>
<xs:element name="name" type="xs:string" />
<xs:element name="author" type="xs:string" />
<xs:element name="price" type="xs:unsignedInt" />
<xs:element name="date" type="xs:string" />
</xs:sequence>
</xs:complexType>
<xs:element name="books">
<xs:complexType>
<xs:sequence>
<xs:element name="book" type="book_type" minOccurs="0" maxOccurs="unbounded" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema> <?xml version="1.0" encoding="utf-8"?>
