What is ref in XML Schema?

What is ref in XML Schema?

2 Answers. Basically it references another element that is declared elsewhere, which may or may not be the same schema document. For instance, it could come from an externally referenced schema in a different namespace.

How do you reference XML Schema in XML?

1. Reference the XSD schema in the XML document using XML schema instance attributes such as either xsi:schemaLocation or xsi:noNamespaceSchemaLocation.
2. Add the XSD schema file to a schema cache and then connect that cache to the DOM document or SAX reader, prior to loading or parsing the XML document.

What is noNamespaceSchemaLocation in XML?

The noNamespaceSchemaLocation attribute references an XML Schema document that does not have a target namespace.

What is element in XML Schema?

A simple element is an XML element that can contain only text. It cannot contain any other elements or attributes. It can be one of the types included in the XML Schema definition (boolean, string, date, etc.), or it can be a custom type that you can define yourself.

How many types of XML tags are there?

The first element of XML document is called root element. The simple XML document contain opening tag and closing tag. The XML tags are case sensitive i.e. and both tags are different. The XML tags are used to define the scope of elements in XML document.

What’s the difference between ref and type in an XML Schema?

(The same name/ref alternation applies to attribute declarations and attribute references, and there is a similar dichotomy between inline type definitions and references to named types.) In your example, there is no top-level declaration for an element named Child, so the ref attribute fails.

Where does the ref attribute come from in XML?

Basically it references another element that is declared elsewhere, which may or may not be the same schema document. For instance, it could come from an externally referenced schema in a different namespace.

How to define an XML Schema element element?

Syntax Attribute Description id Optional. Specifies a unique ID for the name Optional. Specifies a name for the eleme ref Optional. Refers to the name of another type Optional. Specifies either the name of a

What does the ref attribute on an element in an XSD do?

However, a ref attribute refers to an external entity by its “id”, not “name”. According to all XSD documentation I’ve seen, the “ref” applies to a “name”, as seen here: w3schools.com/schema/el_element.asp (ref – Optional.

What is ref in XML Schema? 2 Answers. Basically it references another element that is declared elsewhere, which may or may not be the same schema document. For instance, it could come from an externally referenced schema in a different namespace. How do you reference XML Schema in XML? Reference the XSD schema in the…