Here I present a video version of my XML Tutorial. I went out of my way to cover nearly all of the capabilities provided to you with XML. If you have any questions or want further information, leave a comment below.
Learn XML Video Tutorial Part 1
Here I introduce XML by covering:
In this article I’ll describe the most complicated aspect in XML. A XML Schema is another way you can represent how a XML document file defines data, elements and attributes.
How Schema’s Differ from DTD’s
Unlike DTD’s, which are great when you are mainly working with text elements, Schema’s work best when your mainly working with data elements.
Schema’s also work better when you want to be certain that the proper data is entered. Schema’s define what type of data each element and attribute can hold. For example, with a XML Schema you can specify you will only allow a price element to be of the form of a certain number of numbers followed by a period and then two additional digits. Continue reading Learn XML Schema
As I explained at the end of the last article. You create a Document Type to define the rules that must be followed in your XML Markup. A DTD defines what elements are required and what attributes can be set and what their potential values can be.
Every DTD must start with the line <?xml version=”1.0” encoding=”UTF-8” standalone=”no”?>. This tells the processor that this is an XML version 1.0 file. The character encoding used is of type UTF-8. And, that no external file is required for this document to work.
Also make sure that when you are creating DTD’s that !ELEMENT, !ATTLIST, #REQUIRED, #PCDATA, #CDATA, etc. are all capitalized.
There you are all up to speed. Now on to DTD Prologs… Continue reading Learn XML Document Type Definition’s
In this tutorial I’ll continue to cover XML and all of it’s capabilities. XML stands for eXtensible Markup Language. I hope you got this one point from the last XML Article. XML does one thing really well. It organizes and classifies your data, so that it is useable by a wide range of devices and software packages!
In this article I’ll explain how XML influenced HTML, to create the newest version of HTML called XHTML. I’ll then explain what well formed XML is and Document Type Definition’s (DTD).
In the next set of tutorials, I’ll completely cover XML and all of it’s capabilities. XML stands for eXtensible Markup Language. I’ll get back to the extensible part in a minute.
First you have to understand that XML is no more a programming language than HTML is. Let me repeat that. XML is not a programming language, it is a Markup Language that is very similar to HTML. If you don’t understand HTML, stop reading this article and instead read or watch my HTML W3C Tutorial.
People really struggle to understand exactly what XML is and I’m going to explain it in an unconventional way that has never failed in the past. I’ll explain XML, by comparing it to HTML. Continue reading Learn XML eXtensible Markup Language