Shchema keyref et key use

<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="root">
    <xs:complexType>
        <xs:sequence>
            <xs:element name="referenced">
                <xs:complexType>
                    <xs:attribute name="id" type="xs:string" />
                </xs:complexType>
            </xs:element>
          
            <xs:element name="owner">
                <xs:complexType>
                    <xs:attribute name="id" type="xs:string" />
                </xs:complexType>
            </xs:element>
        </xs:sequence>
    </xs:complexType>
   
 	 <xs:key name="aKey">
   	 	 <xs:selector xpath="owner" />
   		 <xs:field xpath="@id" />
	</xs:key>
    <xs:keyref name="aKeyRef" refer="aKey">
        <xs:selector xpath="referenced" />
        <xs:field xpath="@id" />
    </xs:keyref>
</xs:element>

Source: stackoverflow.com

Similar codes

0 vote236 views1 answer
Automatically closed menu after clicked event
Html
2 votes261 views2 answers
Button max width bootstrap
Html
0 vote225 views2 answers
Html email signature code
Html
17 votes217 views1 answer
Add tabs html
Html
0 vote223 views1 answer
Ta html inside vue data function
Html
0 vote241 views1 answer
Abrir dos ventanas con a href
Html
3 votes234 views1 answer
Form tag radio
Html
12 votes211 views5 answers
Html meta refresh
Html
-1 vote239 views2 answers
Html long text three dots
Html
87 votes223 views6 answers
Href tag in html
Html