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Module 4 XML Schema 4.1.6 Advantages of XML Schemas over DTD Concepts Schemas overcome the limitations of DTDs and allow Web applications to exchange XML data more robustly, without relying on ad hoc validation tools. The XML schema offers a range of new features: ‣ ¾ Richer data types The Schema draft defines booleans, numbers, dates and times, URIs, integers, decimal numbers, real numbers, and also time intervals. ‣ ¾ Archtypes An archetype allows to define own named datatype from pre-existing data types. For example, one can define a 'ContactList' datatype, and then define two elements, "FriendsList" and 'OfficialList' under that type. ‣ ¾ Attribute grouping There can be common attributes that apply to all elements, or several attributes that include graphic or table elements. Attribute grouping allows the schema author to make this relationship explicit. ‣ ¾ Refinable archetypes A DTD follows a 'closed' type of model. It describes all, and only those elements and attributes that may appear in the content of the element. XML Schema allows two more possibilities: 'open' and 'refinable'. In an 'open' content model, elements other than the required elements can also be present. Additional elements may be present in a refinable content model, but the schema should define those additional elements. Code Snippet: The following code demonstrates a sample schema File: mail.xsd Version 1.0 © Aptech Limited XML Simplified
Module 4 XML Schema Concepts The following code demonstrates a sample XML File with a reference to schema: mail.xml John Jordan Scheduler 3rd March Monday, 7:30 PM: board meeting! Knowledge Check 1 1. Which of these statements about schemas are true and which statements are false? (A) (B) (C) (D) (E) An XML Schema defines the structure of an XML document. An XML Schema is an XML-based add-on to DTDs. XML syntax is used as the basis to create a schema, so it can be stored with the same extension .xml (dot XML). An XML Schema defines how many child elements can appear in an XML document. An XML Schema defines whether an element is empty or can include text. XML Simplified Version 1.0 © Aptech Limited
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XML Simplified
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Dear Learner, We congratulate you o
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Aptech New Products Design Model 1
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Table of Contents Sessions 1. Intro
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Module 1 Introduction to XML Markup
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Module 1 Introduction to XML Concep
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Module 1 Introduction to XML where,
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Module 1 Introduction to XML The ma
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Module 1 Introduction to XML 1.2.6
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Module 1 Introduction to XML The st
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Module 1 Introduction to XML ‣ ¾
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Module 1 Introduction to XML 2. Whi
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Module 1 Introduction to XML Commen
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Module 1 Introduction to XML 1.4.6
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Module 1 Introduction to XML The tw
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Module 1 Introduction to XML The fo
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Module 1 Introduction to XML Knowle
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Module 2 Namespaces Module Overview
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Page 53 and 54: Module 2 Namespaces 2.2.3 Namespace
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Page 57 and 58: Module 2 Namespaces 2.2.6 Override
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Page 61 and 62: Module 3 DTDs Module Overview Welco
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Page 71 and 72: Module 3 DTDs 3.3.2 Valid XML docum
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Page 91 and 92: 4Module XML Schema Module Overview
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Page 123 and 124: Module 4 XML Schema 4.4.2 Datatypes
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Page 133 and 134: Module 4 XML Schema Module Summary
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Module 5 Style Sheets The output is
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Module 5 Style Sheets The output is
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Module 5 Style Sheets Color { paddi
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Module 5 Style Sheets Figure 5.35 d
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Module 5 Style Sheets Figure 5.38 s
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Module 5 Style Sheets value Floatin
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Module 5 Style Sheets Note: In the
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Module 5 Style Sheets 5.4.2 Inherit
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6Module XSL and XSLT Module Overvie
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Module 6 XSL and XSLT XSL consists
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Module 6 XSL and XSLT 6.1.5 XSLT St
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Module 6 XSL and XSLT NaN="string":
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Module 6 XSL and XSLT The following
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Module 6 XSL and XSLT The following
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Module 6 XSL and XSLT 2. Can you ma
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Module 6 XSL and XSLT The built-in
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Module 6 XSL and XSLT priority: Is
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Module 6 Figure 6.7 shows the code
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Module 6 XSL and XSLT Applies the t
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Module 6 XSL and XSLT Figure 6.12 d
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Module 6 XSL and XSLT yes Indicates
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Module 6 XSL and XSLT Figure 6.18 s
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Module 6 XSL and XSLT xsl:value-of
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Module 6 Figure 6.23 shows the code
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Module 6 XSL and XSLT where, count=
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Module 6 XSL and XSLT where, 1.Wate
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Module 6 XSL and XSLT Figure 6.32 d
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Module 6 XSL and XSLT where, xsl:wh
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Module 6 XSL and XSLT Knowledge Che
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Module 6 XSL and XSLT XML File M
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Module 6 XSL and XSLT 3. Can you id
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Module 6 XSL and XSLT XML File
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Module 6 XSL and XSLT Module Summar
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Module 7 More on XSLT XPath provide
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Module 7 More on XSLT ‣ ¾ Attrib
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Module 7 More on XSLT The correspon
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Module 7 Additionally, a list of th
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Module 7 More on XSLT ‣ ¾ Matchi
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Module 7 More on XSLT Concepts 7.2
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Module 7 More on XSLT Figure 7.5 sh
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Module 7 More on XSLT Figure 7.7 de
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Module 7 More on XSLT Concepts bool
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Module 7 More on XSLT Concepts Numb
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Module 7 More on XSLT Figure 7.9 sh
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Module 7 More on XSLT Concepts cei
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Module 7 More on XSLT 7.2.6 String
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Module 7 More on XSLT Figure 7.12 s
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Module 7 More on XSLT The output is
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Module 7 More on XSLT Concepts 7.3.
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Module 7 More on XSLT Concepts 7.3.
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Module 7 More on XSLT Concepts Know
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Module 7 More on XSLT Concepts Modu
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Answers to Knowledge Checks Answers
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Answers to Knowledge Checks Answers
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