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DataDirect's eXtensible Markup Language (XML) program manager and editor of several XQuery-related standards at the World Wide Web Consortium, says As one of the designers of XQuery, I felt it was important to allow queries to work on both XML and other data sources, in any environment. This is good news for those who would like standardized XML-coded publications and documents that can be queried. If such reuse were a mainstream business process, the revenue streams for publishers, including Amazon, would become much larger. In addition, analysis of libraries of office documents could also be mined just as data in structured data warehouses is. This is a possibility into the future, because 250,000 developers are backing XQuery, an XML query standard that emerged in 1998, the same year that the XML standard went public. A probable 2006 approval is late in coming, but welcome. Many vendors are interested, and some products say XQuery can be used in practical ways today. XQuery shows signs of providing such applications and many more, according to one expert's research. A very exciting aspect of XQuery is its support and advancement by authors who know XML and conventional data structures, including comma separated value, which is available as an export from Microsoft Excel and other data sources. Therefore, XQuery also can be used on non-XML structured data.
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