This brief excerpt of Frank P. Coyle's book explains that XML is "more than just tags," and says the power of XML is that it was designed to do only one thing and do it well.

XML, or the Extensible Markup Language, is a standard managed by the World Wide Web Consortium. The flexible text format was initially designed for data exchange on the Internet. Yet it's become ...

If you are familiar with languages like HTML or SGML, the sessions on XML will be understood by you fairly well. Otherwise, I recommend you go through some of the HTML tutorials. Here is one for you.

XML databases can handle data of just about any size or format. This post is one of a series that introduces the fundamentals of NOSQL databases, and their role in Big Data Analytics.

Unlike SGML, XML does not require a document type declaration. However, a document type declaration can be supplied, and some documents will require one in order to be understood unambiguously. (A ...