Category: XML

1. What does an “XML Parser” actually do? An XML parser is a piece of software (usually a library) that: Reads raw XML text (string or file) Checks if it is well-formed (follows XML...

1. What is XML DOM really? DOM = Document Object Model When we talk about XML DOM, we mean: A standard way to represent an entire XML document as a tree of objects in...

XML + XPath — written as if I’m sitting next to you, explaining everything step by step like a patient teacher who wants you to really understand both the XML structure and how to...

1. What is XSLT? (The clearest possible explanation) XSLT = XSL Transformations (also sometimes called XSL or XSLT 1.0 / 2.0 / 3.0) XSLT is a special-purpose transformation language designed to: Take an XML...

1. What is XQuery? (The clearest honest explanation) XQuery = XML Query Language (pronounced “X-query”) It is a standard query language designed specifically to: Search Extract Transform Combine Calculate over … one or more...

XML + XLink + XPointer, written as if I’m sitting next to you — explaining patiently, step by step, with many examples, analogies, real-world context, and common confusion points. We’ll go slowly so you...

XML Validation — written as if I’m sitting next to you, explaining everything patiently step by step like a real teacher who wants you to really understand the concepts, see the differences, and know...

1. What is a DTD? (The clearest explanation) DTD = Document Type Definition A DTD is a set of rules that describes: Which elements are allowed in the XML document In what order they...

1. What is XML Schema (XSD)? The clearest possible explanation XML Schema (usually called XSD — XML Schema Definition) is a powerful language that lets you define very precise rules for what an XML...

XML on the server — written as if I’m sitting next to you, explaining step by step like a patient teacher who wants you to really understand how XML is actually used on server-side...