XML Demystified

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122 Getting Started XML Demystifi ed There are a few things that you’ll need to do before you write your first XQuery expression. XQuery is an extension of XPath; therefore, make sure that you read Chapter 6 before moving ahead with this chapter. You’ll also need an XQuery processor. An XQuery processor is the software that’s like an electronic assistant who searches an XML document for information you request. Skip this section if you already have installed an XQuery processor; otherwise, read on and learn how to install one. Several XQuery processors are available. Some are freeware or open source, and others are commercial software products. Let’s save a few dollars. Download the Saxon-B version 8, which is an open source XQuery processor, at: http://saxon.sourceforge.net/ Saxon-B is a zip file. Download it to c:\saxon and then unzip the file. That’s all you need to do to install Saxon-B. Saxon-B is a Java program. Therefore, you’ll also need to have a runtime version of Java installed on your computer. You’ll find a free, downloadable copy at: http://java.sun.com Download the latest version of Java 2 Standard Edition (J2SE) and follow the installation instructions that come with the downloaded file. You don’t need to know anything about Java to run Saxon-B with the examples we show in this chapter. Take note of where you install the Java runtime. You will need to know this to execute the samples. Testing Saxon-B Once you’ve installed the software, you’ll need to make sure everything is working properly. To do this, create an XML document and an XQuery, and then use Saxon- B to retrieve information from the XML document. Here’s the XML document that you’ll use to learn XQuery. Write this document using an editor and save it in the saxon directory as catalog.xml: U2 How to Dismantle an Atomic Bomb 13.98 Interscope Records 2004-11-23
CHAPTER 9 XQuery Led Zeppelin Physical Graffiti 22.99 Atlantic 1994-08-16 Rush Rush in Rio 13.98 Atlantic 2003-10-21 Billy Joel Songs in the Attic 10.99 Sony 1998-10-20 Led Zeppelin Houses of the Holy 10.98 Atlantic 1994-07-19 Jimi Hendrix Are You Experienced? 12.99 Experience Hendrix 1997-04-22 Bob Dylan The Times They Are A-Changin' 9.99 Sony 1990-10-25 123
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XML DEMYSTIFIED
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XML DEMYSTIFIED JIM KEOGH & KEN DAV
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Professional Want to learn more? We
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ABOUT THE AUTHORS Jim Keogh is on t
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x XML Demystifi ed CHAPTER 3 Docume
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xii Looking Ahead 118 Quiz 118 CHAP
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xvi • Insert data into an XML doc
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xviii Chapter 7: XML Parsers and Tr
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2 XML Demystifi ed However, we’re
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4 XML Demystifi ed Columns are desc
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6 Why Is XML Such a Big Deal? XML D
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8 XML Demystifi ed The first line s
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10 XML Demystifi ed Next, reference
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12 XML Demystifi ed Why Are Corpora
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14 Quiz 1. XML cannot be used with
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18 Identifying Information XML Demy
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20 XML Demystifi ed Be sure that th
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22 street_1 street_2 city state zip
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24 XML Demystifi ed When writing th
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26 XML Demystifi ed Suppose, for ex
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28 Entities XML Demystifi ed Althou
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30 The CDATA section is defined as:
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32 7. All XML markup tags must have
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34 Types of Document Type Definitio
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36 XML Demystifi ed Let’s convert
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38 XML Demystifi ed document—they
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40 XML Demystifi ed NJ 07665 555-
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42 XML Demystifi ed XML developers
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44 XML Demystifi ed If you replace
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46 Attribute Declarations XML Demys
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48 XML Demystifi ed An external DTD
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52 Inside an XML Schema XML Demysti
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54 XML Demystifi ed Next you must r
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56 XML Demystifi ed You reference a
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58 XML Demystifi ed Here’s how to
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60 XML Demystifi ed simpleType, alt
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62 Working with Whitespace Characte
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64 XML Demystifi ed in the next exa
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66 XML Demystifi ed Number of Occur
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68 XML Demystifi ed c. Specifies th
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70 An Inside Look at XLink XML Demy
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Page 98 and 99: 78 XML Demystifi ed For example, yo
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Page 106 and 107: 86 XML Demystifi ed You’re ready
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Page 112 and 113: 92 XML Demystifi ed You really want
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Page 116 and 117: 96 Parsing an XML Document XML Demy
Page 118 and 119: 98 XML Demystifi ed The Content Han
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Page 130 and 131: 110 XML Demystifi ed What Is Really
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Page 156 and 157: 136 Retrieving the Value of an Attr
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Page 170 and 171: 150 XML Demystifi ed However, acces
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Page 182 and 183: 162 XML Demystifi ed in the browser
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Page 186 and 187: 166 The InsertLast() Method XML Dem
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172 XML Demystifi ed before that. T
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174 XML Demystifi ed value="Live Ph
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176 Rush Rush in Rio 13.98 Atlanti
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178 XML Demystifi ed return; } var
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180 The DeleteNodes() Function XML
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182 XML Demystifi ed functions that
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184 XML Demystifi ed The DOMDocumen
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186 CD Listing Summary XML Demystif
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188 XML Demystifi ed 7. The appendC
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190 XML Demystifi ed 4. What does t
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192 XML Demystifi ed 17. What does
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194 XML Demystifi ed c. use=“requ
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196 XML Demystifi ed 42. xlink:show
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198 55. What is returned by round(8
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200 69. An error stops the SAX pars
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202 83. Which of the following will
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204 97. Which of the following is a
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206 Chapter 1 1. b. False 2. d. All
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208 Chapter 5 XML Demystifi ed 1. a
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210 Chapter 9 XML Demystifi ed 1. b
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212 25. c. Specifies the type of da
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214 87. b. False 88. c. 89. b. E-m
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216 complex elements, 63-65 See als
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218 Microsoft’s XML Core Services
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220 V ValidateDocument( ) function,
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XML Demystified

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