
	Where results make sense

Topic: XML query language

	Cover Pages: XML and Query Languages
		Queries are specified using XQL, a de facto standard for querying XML documents that is nearly identical to the simplified form of XPath.
		Query languages, including XML query languages, still tend to be designed either for documents or for data.
		XML data, on the other hand, may be 'sparse'...; (5) In a relational database, the rows of a table are not considered to have an ordering other than the orderings that can be derived from their values.
	xml.coverpages.org /xmlQuery.html (16638 words)

	XQuery - Wikipedia, the free encyclopedia
		XQuery is a query language (with some programming language features) that is designed to query collections of XML data.
		XQuery 1.0 is being developed by the XML Query working group of the W3C.
		The language is based on a tree-structured model of the information content of an XML document, containing seven kinds of node: document nodes, elements, attributes, text nodes, comments, processing instructions, and namespaces.
	en.wikipedia.org /wiki/XML_query_language (516 words)

	An introduction to XQuery
		XML Query Languages: Experiences and Exemplars: This paper identifies essential features of an XML query language by examining four existing query languages: XML-QL, YATL, Lorel, and XQL.
		XML-QL: A Query Language for XML, Deutsch, Fernandez, Florescu, Levy, and Suciu: An influence on XQuery.
		XML Query Language: A Proposal, Robie, Lapp, and Schach: The XQL proposal to the W3C.
	www.ibm.com /developerworks/xml/library/x-xquery.html (3914 words)

	XQuery: An XML query language
		XML data are different from relational data in several important respects that influence the design of a query language.
		XML data, in contrast, are often quite heterogeneous, and distribute their meta-data throughout the document.
		XML documents often contain many levels of nested elements, whereas relational data are “flat.” XML documents have an intrinsic order, whereas relational data are unordered except where an ordering can be derived from data values.
	www.research.ibm.com /journal/sj/414/chamberlin.html (9332 words)

	Cover Pages: XML and Query Languages
		XML Query Engine is a Java-based search engine component that allows you to search small to medium-size collections of XML documents for full-text content using XQL, a de facto XML query language standard that's nearly identical to the abbreviated form of XPath.
		Queries are specified using XQL, a de facto standard for querying XML documents that is nearly identical to the simplified form of XPath.
		XML data, on the other hand, may be 'sparse'...; (5) In a relational database, the rows of a table are not considered to have an ordering other than the orderings that can be derived from their values.
	www.oasis-open.org /cover/xmlQuery.html (16545 words)

	XQL (XML Query Language)
		XML documents are structured documents – they blur the distinction between data and documents, allowing documents to be treated as data sources, and traditional data sources to be treated as documents.
		Queries are done in SQL, a query language that uses the structure of tables as a basic model.
		Queries are done in XQL, a query language that uses the structure of XML documents as a basic model.
	www.ibiblio.org /xql/xql-proposal.html (5686 words)

	XQL FAQ (XML Query Language - Frequently Asked Questions)
		XQL is a query language that uses XML as a data model, and it is very similar to XSL Patterns.
		XQL was designed using a large sandbox of documents, including traditional XML and SGML documents, HTML documents, and data-oriented XML documents, and the features found in XQL reflect the queries that we found useful for the documents we studied.
		A query language that will be used for large-scale repositories must be amenable to query optimization and efficient query processing, and it must be possible to build appropriate indexes on the data to support such queries.
	metalab.unc.edu /xql (2099 words)

	XQuery: Reinventing the Wheel?
		The recommendation of two separate languages, one for XML query and one for XML transformations, if they don't have some sort of common base, may cause confusion as to which language should be used for various applications.
		When the difference in appearance between two languages is this small, one has to wonder whether they should be promoted as separate languages (one for query and one for transformation), or whether they should build from a common base, both semantically and syntactically.
		Since one of the W3C requirements for an XML query language[9] is that it operate on datatypes, this is one of XSLT's primary limitations as a query language.
	www.xmlportfolio.com /xquery.html (6258 words)

	Quilt: an XML Query Language
		XML is an extremely versatile markup language, capable of labeling the information content of diverse data sources including structured and semi-structured documents, relational databases, and object repositories.
		A query language of similar versatility is needed to realize the potential of XML as a universal medium for data interchange.
		The hierarchy and sequence of the query results are determined by the document, and could not have been known in advance by the person formulating the query; in fact, the purpose of the query is to determine this unknown hierarchy and sequence.
	www.almaden.ibm.com /cs/people/chamberlin/quilt_euro.html (8221 words)

	W3C XML Query (XQuery)
		Another XML Query specific feature is support for XML files, for fetching documents via HTTP, and for connecting to relational (or other) data sources: that is, whether the package lives up to the XML Query promise of unifying access to many different forms of information.
		The XML Query Working Group is starting work on the next verion of XML Query, XQuery 1.1, and also on scripting extensions for XQuery.
		XML Query (XQuery) 1.1 Requirements were published as the XML Query Working Group begins a new phase of work.
	www.w3.org /XML/Query (3641 words)

	XQuery 1.0: An XML Query Language
		This specification defines XML Query Language (XQuery), a query language that uses XML structure to express intelligent queries across all structured and semistructured XML data sources.
		In XQuery, a query is represented as an expression.
		The capabilities of XQuery are designed to become increasingly useful as more data resides in XML format, and as distinctions between different data sources (such as documents and databases) blur.
	www.xml.com /pub/r/979 (221 words)

	Quilt: an XML query language
		Our goal was to design a small, implementable language that met the requirements specified in the W3C XML Query Working Group's http://www.w3.org/XML/Group/xmlquery/xmlquery-req XML Query Requirements.
		If the document () function does not occur in a variable binding, the binding is applied to the set of input nodes for the query, which is implicitly determined by the environment in which the query is executed.
		Query Q2 illustrates how data can be formed into groups and an aggregate function can be applied to each group.
	www.gca.org /papers/xmleurope2000/papers/s08-01.html (7197 words)

	XQL (XML Query Language)
		This is a position paper submitted for the W3C's Query Language Workshop.
		Excerpted from "Abstract": "The XML Query Language (XQL) is a notation for addressing and filtering the elements and text of XML documents.
		XQL is a natural extension to the XSL pattern syntax.
	www.xml.com /pub/r/529 (206 words)

	XQuery: The XML Query Language - $43.99 (Site not responding. Last check: 2007-10-21)
		Four years later, the working group is now finalizing the first version of the query language known as XQuery that combines important aspects of the last twenty-plus years of research in languages and data management such as declarativity, composability, functional semantics, and formal type systems.
		When I first encountered XML in 1997, while working at Stanford University as a research associate on semi-structured data management and information integration, it quickly became clear to me that XML will play an important role in modeling markup and semi-structured data and serve as a lingua franca for information exchange.
		For instance, Michael identifies language properties and idioms that may surprise even advanced users of XQuery, and points out both the positive and negative aspects of a language which must satisfy a vast array of use cases, implementation environments, and interests.
	www.awprofessional.com /title/0321165810 (1390 words)

	Quilt: An XML Query Language (Site not responding. Last check: 2007-10-21)
		Its name suggests both the way in which concepts from several languages were pulled together to make a new query language, and the way in which Quilt queries can combine information from diverse data sources into a query result with a new structure of its own.
		Quilt has been presented as a proposal to the W3C XML Query Working Group, and that group has adopted Quilt as the basis for development of a new language called XQuery.
		Quilt: An XML Query Language for Heterogeneous Data Sources
	www.almaden.ibm.com /cs/people/chamberlin/quilt.html (182 words)

Try your search on: Qwika (all wikis)