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Complex Mix Element can have text and attribute and elements. See the following example −

<student rollno = "393">
   Dear <firstname>Dinkar</firstname>    
   <lastname>Kad</lastname>
   <nickname>Dinkar</nickname>
   <marks>85</marks>	 
</student>

We can declare such Complex Text using the following ways −

Use mixed=true

Define complexType with attribute “mixed” set to true. “mixed” attribute allow to have character data between elements.

<xs:complexType name = "StudentType" mixed = "true">
   <xs:sequence>
      <xs:element name = "firstname" type = "xs:string"/>
      <xs:element name = "lastname" type = "xs:string"/>
      <xs:element name = "nickname" type = "xs:string"/>
      <xs:element name = "marks" type="xs:positiveInteger"/>
   </xs:sequence>
   <xs:attribute name = 'rollno' type = 'xs:positiveInteger'/>
</xs:complexType>

<xs:element name = 'student' type = 'StudentType' />

Use ComplexType alone

Define an element of complexType with the required attribute element only.

<xs:element name = 'student'>
   <xs:complexType mixed = "true">
      <xs:sequence>
         <xs:element name = "firstname" type = "xs:string"/>
         <xs:element name = "lastname" type = "xs:string"/>
         <xs:element name = "nickname" type = "xs:string"/>
         <xs:element name = "marks" type = "xs:string"/>
      </xs:sequence>
      <xs:attribute name = 'rollno' type = 'xs:positiveInteger'/>
   </xs:complexType>			  
</xs:element>