XSD How To?

A reference to a DTD or an XML Schema is possible for the XML documents.

A Simple XML Document:


<?xml version="1.0"?>
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DTD – Entities

To define shortcuts to special characters, the entities are used which can be declared either internal or external. There are three parts of an entity:

  • An ampersand
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XML Elements vs. Attributes

For the attributes and the child elements in XML, there are no rules about when to use which one.

Use of Elements vs Attributes:

We can store … Read More

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DTD – Attributes

An ATTLIST declaration is used to declare the attributes in a DTD.

Declaring Attributes:

Syntax: Attribute declaration:

<!ATTLIST element-name attribute-name attribute-
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DTD – Elements

An ELEMENT declaration is used to declare the elements in a DTD.

Declaring Elements:


<!ELEMENT element-name category>


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DTD – XML Building Blocks

The elements are the main building blocks of both XML and HTML documents.

The Building Blocks of XML Documents:

The XML documents, when viewed from a DTD … Read More

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XQuery Functions

The same functions library is shared by XQuery 1.0, XPath 2.0, and XSLT 2.0. Built on XPath expressions, XQuery 1.0 and XPath 2.0 share the same data … Read More

XQuery Syntax

There are some syntax rules defined for XQuery, such as, it is case-sensitive and that the elements, attributes, and variables in XQuery must be valid XML names.… Read More