Session 2

Session 2 DTDs and XML Schema Create by ChungLD faculty XML by Example / Bachkhoa – Aptech Computer Education /41

Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Definition of a DTD ,[object Object],[object Object],Create by Chungld faculty /41

Structure of DTD Create by Chungld faculty /41 Element Declarations Attribute Declarations Entity Declarations

Internal DTD Declaration ,[object Object],Create by Chungld faculty /41 Internal DTDs

External DTD Declaration ,[object Object],Create by Chungld faculty /41 External DTDs

Declaring Element ,[object Object],[object Object],Create by Chungld faculty /41

Example ,[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Declaring Elements Create by Chungld faculty /41

More on declaring elements Create by Chungld faculty /41

Declaring attributes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41 The attribute-value in a DTD declaration can have values as show in the table:

Default Example ,[object Object],[object Object],Create by Chungld faculty /41

#REQUIRED Example ,[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

#IMPLIED Example ,[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

#FIXED example ,[object Object],[object Object],[object Object],Create by Chungld faculty /41

Enumerated Attribute Values ,[object Object],[object Object],[object Object],Create by Chungld faculty /41

Avoid using attributes? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

DTD - Entities ,[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Internal Entity Declaration ,[object Object],[object Object],[object Object],Create by Chungld faculty /41

External Entity Declaration ,[object Object],Create by Chungld faculty /34

DTD Example Create by Chungld faculty /41 Click and see

XML Schema Create by Chungld faculty /41

What is an XML Schema? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Need for Schema ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Comparing DTDs with Schemas ,[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41 DTD Schema <!ELEMENT> declaration xsd:element element <!ATTLIST> declaration xsd:attribute element <!ENTITY> declaration n/a #PCDATA content xsd:string type n/a other data types

Advantages of XML Schemas over DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41 Click and see

How to write an XML Schema ,[object Object],[object Object],Create by Chungld faculty /41 Click and see

XML Schemas Support Data Types ,[object Object],[object Object],[object Object],Create by Chungld faculty /41

XML Schemas Support Data Types… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Schema Vocabulary ,[object Object],Create by Chungld faculty /41 <?xml version="1.0" encoding="utf-8" ?> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http:// aptech .com" xmlns="http:// aptech .com" elementFormDefault="qualified">

Schema Vocabulary… ,[object Object],Create by Chungld faculty /41 <mail xmlns="http://aptech.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://aptech.com mail.xsd">

XSD Simple Elements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Default and Fixed Values for Simple Elements ,[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

XSD Attributes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Default and Fixed Values for Attributes ,[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Optional and Required Attributes ,[object Object],Create by Chungld faculty /41

User-defined simple types ,[object Object],Create by Chungld faculty /41

Restrictions on Values ,[object Object],[object Object],Create by Chungld faculty /41

Restrictions on a Set of Values ,[object Object],[object Object],Create by Chungld faculty /41

Restriction by pattern ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Restrictions on Length ,[object Object],[object Object],Create by Chungld faculty /41

Restrictions on Whitespace Characters ,[object Object],[object Object],[object Object],Create by Chungld faculty /41

Restrictions on Whitespace Characters… ,[object Object],[object Object],Create by Chungld faculty /41

Working with complex types ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

How to Define a Complex Element ,[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Complex Empty Elements ,[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Complex Types Containing Elements Only ,[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Complex Text-Only Elements ,[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Complex Types with Mixed Content ,[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Defining number of element occurrences ,[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

minOccurs and maxOccurs Create by Chungld faculty /41 Click and see

Grouping Constructs… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Create by Chungld faculty /41

Summary and workshop Create by Chungld faculty /41

Session 2

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Session 2