XML
Another popular data storage format nowadays is XML, dealing with hierarchical data structures. As you can guess by now, the story on querying this type of data source is again fundamentally different from dealing with objects or relational data. To illustrate this point, consider the following XML document for our familiar products catalog:
Again, focusing on our filtering query example, let’s try to select the products with a price less than $25. Once more, we have to familiarize ourselves with another API, this time under the System.Xml namespace.
DOM
System.Xml is an XML Document Object Model API that isn’t very easy to use. To create ...
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