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<p>From <b>http://www.w3schools.com</b> (Copyright Refsnes Data)</p>
<h1>DTD Tutorial</h1>
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<h2 class="tutheader">DTD Tutorial</h2>
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<p><b>The purpose of a DTD (Document Type Definition) is to define the legal
building blocks of an XML document. It defines the document structure with a
list of legal elements and attributes.</b></p>
<p> <a href="dtd_intro.asp"><b>Start learning DTD now!</b></a></p>
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<h2 class="tutheader">Table of Contents</h2>
<p><a href="dtd_intro.asp">Introduction to DTD<br />
</a>An introduction to the XML DTD, and why you should use it.</p>
<p><a href="dtd_building.asp">DTD - XML Building Blocks<br />
</a>The XML building blocks that can be defined in a DTD.</p>
<p><a href="dtd_elements.asp">DTD Elements<br />
</a>How to define the legal elements of an XML document using DTD.</p>
<p><a href="dtd_attributes.asp">DTD Attributes<br />
</a>How to define the legal attributes of XML elements using DTD.</p>
<p><a href="dtd_el_vs_attr.asp">DTD Elements vs. Attributes </a><br />
When to use elements and when to use attributes. A small "think-about"
guideline.</p>
<p><a href="dtd_entities.asp">DTD Entities<br />
</a>How to define XML entities using DTD.</p>
<p><a href="dtd_validation.asp">DTD Validation<br />
</a>How to test for DTD errors while loading XML documents.</p>
<p><a href="dtd_examples.asp">DTD Examples<br />
</a>Some real world DTD examples.</p>
<p><a href="dtd_summary.asp">DTD Summary</a><br />
This chapter contains a summary on what you have learned in this tutorial and a
recommendation on what subject you should study next.</p>
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<p>From <b>http://www.w3schools.com</b> (Copyright Refsnes Data)</p>
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