why cdata is used in xml?
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CDATA stands for Character Data. You can use this to escape some characters which otherwise will be treated as regular XML. The data inside this will not be parsed. For example, if you want to pass a URL that contains & in it, you can use CDATA to do it.
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['Syntax. <xs:attribute name = "attribute-name" type = "attribute-type"/> ... ', 'Example. Consider the following XML Element <student rollno = "393" /> ... ', 'Default Value. Attribute can have a default value assigned to it. ... ', 'Fixed Value. Attribute can have a fix value assigned. ... ', 'Restriction.']
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XML data is known as self-describing or self-defining, meaning that the structure of the data is embedded with the data, thus when the data arrives there is no need to pre-build the structure to store the data; it is dynamically understood within the XML. ... This ability allows XML to support hierarchical structures.
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Defining XML Attributes The "use" property in the XSD definition is used to specify if the attribute is optional or mandatory. To specify that an attribute must be present, use="required" (Note: use may also be set to "prohibited", but we'll come to that later).
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Extensible Markup Language (XML) is a text-based language designed to store and carry data, and is commonly used in website and database development. Portable Document Format (PDF) files have the capacity to be read by nearly any computer that utilizes PDF reading software, such as Adobe Acrobat Reader.
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While the XSD is a tool that is used to identify configuration that its coded data is being displayed in the web pages. XSD is the abbreviation for the XML Schema Definition. ... XSLT (XSL Transformation): This is a language that is majorly used in the transformation of XML documents into other forms of XML documents.
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HTML is used to structure the text on web pages to be rendered appropriately in web browsers. XML is generally used to structure data or messages. JSON is used to represent data as key-value pairs, which can be easily converted to and from JavaScript objects.
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Your CSS stylesheet is obviously designed to be applied directly to your XML: it contains selectors for cd , artist , country , etc. - these are all elements in your XML. These elements are not present in the result of the XSL transformation, that transforms your XML to an HTML document containing (mostly) a table.
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In general XSLT is a programming language that can transform one XML format into another XML format or into HTML or into plain text. Data is usualy stored in the XML file, XSLT is used for transforming/formatting the XML file for display or other processing.
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In web applications, XML is most commonly used to transport data from one application to another, or one script to another. However, XML is not a replacement to HTML. In fact, XML is also commonly used in desktop applications too.
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The purpose of a DTD (Document Type Definition) is to define the legal building blocks of an XML document. A DTD defines the document structure with a list of legal elements and attributes. You can validate your XML-Document to see if it only uses the by you pre-defined tags in your DTD.
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XML schemas are written in XML while DTD are derived from SGML syntax. XML schemas define datatypes for elements and attributes while DTD doesn't support datatypes. XML schemas allow support for namespaces while DTD does not. XML schemas define number and order of child elements, while DTD does not.
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The one thing one can say is that the performance of XPath depends more on the engine you are using, and the performance of DOM depends more on the competence of the application programmer, because it's a lower-level interface. Of course all programmers consider themselves to be much better than average...
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XML namespaces are used for providing uniquely named elements and attributes in an XML document. xmlns:android describes the android namespace. Its used like this because this is a design choice by google to handle the errors at compile time.
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XML has found wide application. Today, various programs and devices use it to handle, structure, store, transmit, and display data. For example, it's widely used in B2B data exchanges. XML is also the standard for Office file formats, including Microsoft Office and Google Docs files.
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XPath can be used to navigate through elements and attributes in an XML document. XPath stands for XML Path Language. XPath uses "path like" syntax to identify and navigate nodes in an XML document. XPath contains over 200 built-in functions. XPath is a major element in the XSLT standard.
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Home » Language Extensions » Memory Types » xdata. The xdata memory type may be used to declare variables only. You may not declare xdata functions. This memory is indirectly accessed using 16-bit addresses and is the external data RAM of the 8051. The amount of xdata is limited in size (to 64K or less).