XML Tutorial
A dialect of SGML (Standard Generalized Markup Language), XML (Extensible Markup Language), is not a programming language but a set of rules that structure data in a representational manner. XML rules are standard, leading the programmer to create documents that are automatically processed and generated for the World Wide Web. The breakdown of XML is as follows: Extensible, meaning user-defined tags, Markup, a collection of tags and XML Tags identifying data content.
Created in 1996, XML 1.0 was implemented for use in 1998 in association with the World Wide Web Consortium (W3C). Like HTML, XML is a markup language but it differs in its use of tags and attributes (markup). XML complies with cross-platform scripting language to create active information and interpret text-based code. XML language defines what the data is and HTML defines what it looks like (fonts and display).
Tutorials on the basic background information about XML, Elements in Document Type Definitions, Attributes, Entities and using XML with scripting languages are presented in ease to understand XML tutorials. Computer Sciences Engineers and IT Professionals are expected to be familiar with XML in addition to other open source technologies such as Java, Linux, Perl and MySQL. Software engineers, programmers and developers utilize XML in the development of web applications.
XML Introduction In this tutorial you will learn about XML, History, Introduction, Uses, XML Technology. HISTORY In 1970 IBM Introduced SGML (Standard Generalized Markup Language). SGML was developed out of the General Markup Language (GML), which was developed by IBM in the late 1960s. SGML is a semantic and structural language for text documents but is very complicated. HTML is a subset of SGML. In 1996 XML Working Group was formed under W3C .The World Wide Web Consortium (W3C) is an international consortium where Member organizations, a full-time staff, and the public work together to develop Web standards . W3C…
XML – Elements, Attributes, Entities In this tutorial you will learn about Elements, Anatomy of tags, Tag naming rules, Invalid tags, Valid tags, Root and child elements, Attributes, When Do I use Attributes? Entities, Character data sections, Comments and Processing instructions. {mos_ri} Elements Elements are the basic building blocks of XML It may contain – Other elements – Character data – Character references – Entity references – Comments – These are collectively known as element content Ex: < student > Mason Hill < /student > An Element consists of three parts 1. Opening Tag < student > 2. Description Mason…
XML – Document Type Definitions (DTD) In this totuorial you will learn about XML – Document Type Definitions (DTD) – Need, DTD, Types Of DTD’s , Internal DTD , External DTD. NEED XML documents can contain many different types of markups including elements, attributes and entity references. Whatever maybe the application it is desirable that the XML document conforms to a certain set of rules governing the data structure it contains. DTD and Schema’s are used for this purpose. For Example, < name >12233< /name > If a DTD defines that data in name tags should contain only characters…
XML – Elements in Document Type Definitions (DTD) In this tutorial you will learn about Elements in DTD, Elements, child elements (nested elements), declaring elements with character data only, declaring elements with mixed content, declaring elements with any content, declaring elements with no content and element order indicators and qualifiers. Elements in DTD. ELEMENTS Every element used in the valid XML document must be declared in the Document’s DTD. SYNTAX : < !ELEMENT element_name content_specification > element_name: Specifies name of the XML tag Content_specification: Specifies the contents of the element which could of the following five types I) Standard Content…
XML Advantages There are many advantages to using XML for information exchange, and they offer many benefits to the user. The Extensive Markup Language uses human language, which is conversable and not the language used by computers which is binary and ASCII coded. XML is readable by even people who have had no formal introduction to XML or have been coached on it. It is as easy as HTML. XML is fully compatible with applications like JAVA, and it can be combined with any application which is capable of processing XML irrespective of the platform it is being used on….
XML Disadvantages The extensive markup language is the way to go for developing future web applications, and it almost defines the future of web development. There are no doubts about its performance in this arena. However, XML also has some draw backs which need to be looked at and improved upon. The reason it faces some resistance from users is a result of these drawbacks. One of the biggest drawbacks of XML is that it is lacking in the area of adequate applications for processing. Lack of Applications Processing XML needs an application processing system . There are no browsers…
XML Web Services One of the main reasons the web succeeded today is it simplicity due to which it can be omnipresent. Web services are the new generation we applications. They are self starting applications that run on their own platforms and are accessible on the web easily. Web services architecture is very simple to understand and is divided into tiers. What is a web service platform? A basic web service platform is XML or Extensible Markup Language. XML or the Extensible Markup language is a meta-language which allows you to compose languages in it to develop an interface between…
XML Parsing XML documents can be parsed efficiently and more critically because XML is a widely accepted language. It is extremely crucial to programming for the web that XML data be parsed efficiently, especially in cases a where the applications that are required to handle huge volumes of data. When parsing is improper it can increase memory usage and time for processing which directly affects the scalability by decreasing it. There are many XML parsers that are available. Choosing a right one for your situation might be challenging. There are three XML parsing techniques which are extremely popular and are…
XML Processing XML documents process is explained by a huge set of specifications and the list of these specifications is growing endlessly. A lot of applications depend on these specifications to work with XML or extensive markup language. These specifications will have all the requirements listed for XML processing model and even the XML language specifications. These specifications are more at the conceptual level and contain descriptions about the language based interactions. The XML documents are treated as a set of information modules and the specifications contains processes which construct new sets of information modules, inspect the information sets, modify…
XML Remote Calling Procedure XML RPC or the XML Remote Calling Procedure is a set of compilations and implementations which allow certain programs to run on complex platforms or operating systems and allows them to make Remote Procedure calls on the Internet. The Remote Procedure Calling Protocol uses HTTP as a transport and uses XML for encoding. XML RPC allows complex data structures to be processed and transmitted or returned and it is very simple to be operated on the Internet. The set of XML RPC implementations is spread over various operating systems like C, C++, Java, LISP, PHP just…
XML Security Documents can be secured using XML now. When data is released to the web it becomes free for all and is available everywhere and it is literally omnipresent. How do you secure and safeguard something which is so widely spread. Security issues for XML documents has now reached climax because XML documents can be secured using XML security. XML secures the documents in two ways; one is the ML signature and the other XML encryption. XML Encryption In the World Wide Web security is taken care of by secure socket layer (SSL) and Transport Level Security (TLS). This…
XML SQL Server The Extensible Markup Language was introduced in the SQL server because of the clause to SELECT. Now XML has been well integrated into the Microsoft SQL server in the Relational Database Management System or the RDBMS which can help create futuristic web programs and databases. Why introduce XML into a SQL server? A business to business portal or B2B, business to consumer portal or B2C, or Intrabusiness networks need to exchange a lot of information and this exchange of information can be easily enabled with the help of XML. You could integrate ERP (Enterprise Resource Planning) and…
XML and Service Oriented Architecture SOA or service oriented architecture is a procedure carried out to attain coupling between the loose elements in software agents. Service oriented architecture has to be treated like an environment rather than a procedure or programs because it is literally present everywhere. SOA or the service oriented architecture is different from object oriented program in its belief that data and its processing should be bound together and they should go together. The difference here is in object oriented programming the data comes with its own processor and they both cannot be separated. This may sound…
XML Spy XML Spy XML is a widely spread and accepted software and has a wide support on the Internet simply because it is flexible, dynamic, user friendly, interoperable and flexible. XML today plays a pivotal role in software development and is associated with most of the programs being use today. XML spy is an extremely powerful tool associated with the XML software and allows you to create business critical software’s and also gels with XML view and the options that suit your business needs. XML Spy offers intelligent editing options with work best with XML technologies. XML Spy consists…
Using XML with Microsoft Excel One of the most useful features for a programmer would be Microsoft Excel’s capability to support XML schemas which are user defined. Though it is not a very prominent feature which can be obviously noted it still exists and is very functional tool. In simple English it means that you can add, and modify XML data in an Excel workbook. Excel has an inbuilt feature to process the data for you. You can perform various functions using the Microsoft excel workbook. You can view the data using an XML list. If you need to see…
Working with XML in Visual Basic Extensive markup language and Visual Basic is the odd couple of the industry. Visual Basic is one of the most common languages that are being used today. This Microsoft introduced language was meant to be middle tier in characteristic but has managed to get the top tier position when it comes to programming, developing client and server applications. This is mainly because it is quick and easy and doesn’t need thousands of lines of codes to be written. The relationship between VB, DOM and XSLT The Document Object Model or the DOM was first…
Working with XML in Oracle Introduction to XML Extensive markup language is the language which presents data in a human readable form of text. The data can be anything from a purchase order or a stock quote or weather radar or a flight schedule it can be represented using XML. XML is very similar to HTML in its functionalities because even XML uses the open tag and the close tag. But the difference between the both is that the HTML has a set of fixed tags and you have to use something from the specified list and in XML you…
Working with XML in Flash To integrate an XML document with Flash, we need an XML document that works with Flash, one that can set up the visual movements of the action movie and define the script that will be used for the code of the action movie. How do We Integrate XML and Macromedia Flash? IMEX stands for Imaginary Macromedia Exchange, and IMEX is also a client server application. There has to be a protocol to interact between the client and the server. The protocol must also be designed in such a way that it fulfills all the requirements…
Working with XML in Python The Extensive Markup Language and Python are two very different platforms. Python is a programming language and XML is a standards oriented language document. Python is a full fledged programming language which has its roots deep in scripts, and also has matured over a period of time. XML is still evolving as a tool, and is much smaller in scale when compared to Python. The application of the Python and XML combination comes into picture only when you have to work with XML on different platforms, or in a distributed environment. Shell script and Perl…
September 2, 2007
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Working with XML in Perl Extensive Markup language or the XML is a sort of data storage; it is very structured and mapped out. There are two most important aspects of XML that has to be covered, one is writing in XML and reading it out in XML. Parsers have already been created in XML and knowing how these parsers can be used is very important to program using XML and Perl as a combination. These parsers prepare the data so that it can worked on immediately, they in a way make it ready to use or to be programmed…
September 6, 2007
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Working with XML in C The Role of XML with C The Extensive Markup Language has changed the way in which information is being viewed and exchanged. Users can share their sensitive documents on the World Wide Web by declaring what is theirs for EDI or Electronic Data Interchange, data publishing a data management tasks. XML is very structured and the data is highly organized, it marks the start and end of all tags and group by identifying similar elements in the XML document. This method which is followed by the XML makes the data reusable which is a very…
September 7, 2007
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Exforsys
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