CHAPTER52The Hitchhiker’s Guide to XML in Oracle

eXtensible Markup Language (XML) is a standardized syntax for describing hierarchical data. Rather than being a programming language, XML is a universal format for structured documents and data. Its tag-based syntax, which will be familiar to those familiar with HTML (Hypertext Markup Language), gives it the flexibility to handle complex data. Whereas HTML tells a web browser how to present data, XML tells applications what the data means.

XML is well suited to solving data-interchange problems among heterogeneous systems; database-resident data is easily accessed, converted, and stored. This chapter ...

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