XML blurs the distinctions between databases, documents, and messages, but it needs a powerful and elegant query language to reach its full potential. XPath does not go far enough. XQuery intends to be that language.
by Srinivas Pandrangi,
Alex Cheng,
Dr. Hui Zhang,
QiDong Xu and
Jim Gan
October 21, 2002
ver the past few years, XML has rapidly gained popularity as a formatting language for information, finding constituencies in both the document-centric and data-centric worlds. The explosive growth of XML-based standards bears testimony to XML's interest to many different technical communities. Applications now use XML for both transient messages, such as SOAP or XML-RPC messages, and as persistent storage, such as in XML databases or content management systems. An XML-based Web, as opposed to an HTML-based Web, no longer sounds like fantasy.
As the volume of information stored in XML grows, it becomes correspondingly more important to be able to access information in XML documents efficiently and effectively. To do that, you need an expressive query language so you can specify precisely what information you want to retrieve or update in an XML data source. XQuery intends to be that language.
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ver the past few years, XML has rapidly gained popularity as a formatting language for information, finding constituencies in both the document-centric and data-centric worlds. The explosive growth of XML-based standards bears testimony to XML's interest to many different technical communities. Applications now use XML for both transient messages, such as SOAP or XML-RPC messages, and as persistent storage, such as in XML databases or content management systems. An XML-based Web, as opposed to an HTML-based Web, no longer sounds like fantasy.
