Similar to HTML files, XML files are plain text files that can easily be stored and generated by a standard web server. Storing XML Files on the Server: In the same way as HTML files, XML files can be stored on an Internet server. Write the following lines after starting Windows Notepad. Example: Tom Sapna … Read more
To describe the structure of an XML document, similar to a DTD, an XML Schema is used. A DTD or Document Type Definition is also used to define the structure and the legal elements and attributes of an XML document. A “Well Formed” XML document is the one with correct syntax, while an XML document … Read more
A “Well Formed” XML document is the one with correct syntax, while an XML document validated against a DTD is both “Well Formed” and “Valid”. What is DTD? DTD or Document Type Definition is used to define the structure and the legal elements and attributes of an XML document. Valid XML Documents: Along with being … Read more
To syntax-check our XML, we use an XML validator. Well-Formed XML Documents: A “Well Formed” XML document is the one with the correct syntax. Syntax rules: In XML Documents must have a root element. Elements must have a closing tag. Tags are case sensitive. Elements must be properly nested. Attribute values must be quoted. Example: … Read more
To create hyperlinks in XML documents, XLink is used which is a W3C Recommendation. In an XML document, any element can behave like a link. The links can be defined outside the linked files with XLink. XLink Browser Support: In XML documents, no browser support for XLink is available, but all major browsers support XLinks … Read more
What is XQuery? Designed to query the XML data, XQuery is to XML what SQL is to databases. It is built on XPath expressions and is supported by all major databases. It is a W3C Recommendation too. Example: for $x in doc(“books.xml”)/bookstore/book where $x/price>100 order by $x/title return $x/title XQuery is About Querying XML: To … Read more
XML and XSLT To transform an XML document into HTML, the XSLT can be used. Displaying XML with XSLT: Being a recommended style sheet language for XML, XSLT or eXtensible Stylesheet Language Transformations is far more sophisticated than CSS. To add/remove elements and attributes to or from the output file, rearrange and sort elements, perform … Read more
What is XPath? To navigate through elements and attributes in an XML document, XPath is used as a major element in the XSLT standard which contains a library of standard functions. It is a syntax for defining parts of an XML document that uses path expressions to navigate in XML documents. Along with being a … Read more
For accessing and manipulating documents, a standard is defined by the DOM. “The W3C Document Object Model (DOM) is a platform and language-neutral interface that allows programs and scripts to dynamically access and update the content, structure, and style of a document.” For accessing and manipulating HTML documents, the HTML DOM defines a standard way … Read more
To access and manipulate XML, a built-in XML parser is present in all major browsers. XML Parser: To define the properties and methods for accessing and editing XML, the XML DOM (Document Object Model) is created. An XML document must be loaded into an XML DOM object, before accessing it. To convert text into an … Read more