XML Tutorial/Namespace/targetNamespace

Defining the XML Schema Namespace as the Default

<?xml version="1.0"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema"
  targetNamespace="http://www.wbex.ru/namespaces/pub"
  xmlns:pub="http://www.wbex.ru/namespaces/pub"
  elementFormDefault="qualified">
  <include schemaLocation="book.xsd"/>
  <element name="products">
   <complexType>
    <sequence>
     <element name="publications">
      <complexType>
       <sequence>
        <element ref="pub:book" maxOccurs="unbounded"/>
       </sequence>
      </complexType>
     </element>
    </sequence>
   </complexType>
  </element>
</schema>

Document Models with a Namespace

File: Schema.xsd
<xsd:schema
  xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  targetNamespace="http://www.wbex.ru/namespaces/employee"
  xmlns="http://www.wbex.ru/namespaces/employee">
  <xsd:element name="employee">
   <xsd:complexType>
    <xsd:sequence>
     <xsd:element name="name" type="xsd:string"/>
     <xsd:element name="email" type="xsd:string"/>
     <xsd:element name="hireDate" type="xsd:string"/>
    </xsd:sequence>
   </xsd:complexType>
  </xsd:element>
</xsd:schema>
File: Data.xml
<?xml version="1.0"?>
<em:employee
  xmlns:em="http://www.wbex.ru/namespaces/employee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.wbex.ru/namespaces/employee employee.xsd">
  <name>Joe Smith</name>
  <email>a@a.ru</email>
  <hireDate>2008-10-29</hireDate>
</em:employee>

Referencing Components with Namespaces

<?xml version="1.0" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/10/XMLSchema"
  targetNamespace="http://www.wbex.ru"
  xmlns:end="http://www.wbex.ru">
  <xsd:element name="employees">
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element name="animal" type="end:animalType"
          maxOccurs="unbounded" />
      </xsd:sequence>
    </xsd:complexType>
  </xsd:element>
  <xsd:complexType name="animalType">
    <xsd:sequence>
      <xsd:element name="name" type="end:nameType" minOccurs="2" />
      <xsd:element name="projects" type="end:projectsType" />
      <xsd:element name="weight" type="xsd:string" minOccurs="0"
        maxOccurs="1" />
    </xsd:sequence>
  </xsd:complexType>
</xsd:schema>

Specify a target namespace

<?xml version="1.0" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/10/XMLSchema"
  targetNamespace="http://www.wbex.ru/">
  <xsd:element name="employees">
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element name="animal" type="animalType"
          maxOccurs="unbounded" />
      </xsd:sequence>
    </xsd:complexType>
  </xsd:element>
  
</xsd:schema>

Use targetNamespace as the Default Namespace

<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  targetNamespace="http://www.wbex.ru/namespaces/pub"
  xmlns="http://www.wbex.ru/namespaces/pub"
  elementFormDefault="qualified">
  <xsd:include schemaLocation="book.xsd"/>
  <xsd:element name="products">
   <xsd:complexType>
    <xsd:sequence>
     <xsd:element name="publications">
      <xsd:complexType>
       <xsd:sequence>
        <xsd:element ref="book" maxOccurs="unbounded"/>
       </xsd:sequence>
      </xsd:complexType>
     </xsd:element>
    </xsd:sequence>
   </xsd:complexType>
  </xsd:element>
</xsd:schema>