Xsd tutorial pdf download

Notice this time that only the globally defined element MyBaseElement is qualified with the namespace 'b', the inner element ChildA which is defined in place within the schema is not qualified.

In the last example we saw that the globally defined elements must be qualified in the XML instance document, but elements defined inplace do not. But this does not just mean the root element, if you have globally defined elements that are referenced, then they need qualifying as well. The default value of the block attribute that is applied to xs:complexType and xs:element. XSD 1. Indicates whether element in the XML instance document have to be qualified with a namespace default unqualified.

The default final attribute value used in xs:complexType and xs:element. When a xs:complexType derives from a xs:simpleType is can do it via extension , in which case it can add attributes to the resulting type, but not elements.

Conceptually a xs:complexType either contains simple or complex content. If the xs:complexType derives from a typed based on xs:anySimpleType xs:int, xs:string etc then it is simple. If it derives from a xs:complexType which contains complex content, then it itself is complex if the xs:complexType does not derive from a type, then it is also complex. The distinction between well-formedness, which is absolute, and validity, which is relative to a schema, is paramount.

XML Schema was introduced to address requirements that DTD validation failed to address, among others a more complete type system including a rich set of builtin types, type restriction and extension capabilities, and more control on the restriction of element layout.

XML Schema 1.