For the integration of data there are many techniques of using SQLXML and .net the sql client data provider supports execute xml reader it can consume directly the result of it to do the xml query the user can use xml directly, the role of XML query in reinventing the wheel is very large the overlap between the xquery and xslt is too great for W3C to recommend both as separate languages if the XSLT is not considered enough as an XML query language then its development should be built from the same and semantic syntactic base as XSLTThe most
The XSLT and XQuery standards were created by different working groups within W3C. The both share the same data model, type system and function library, and both include Xpath 2.0 as a sub language. XQuery was initially created as a query language that would work with large collections of XML documents; it can also work with individual documents. So, its capabilities overlap with XSLT, which was designed to allow input XML documents to be transformed into XML or other formats.
Anyway, there are great differences between these
Debates on the XML-DEV and XSL mailing lists over the last two weeks concern the futures of XSLT, XPath, and, the latest addition to the W3C XML toolkit, XML Query. There are no signs of these debates ending this week. Discussion on XML-DEV about the design of XML Query rages on.
Reinventing the Wheel
The focus of last week's XML-Deviant was the concern expressed by several XML-DEV contributors that the interdependence of several W3C specifications may have exceeded the dictates of software reuse and become instead a tangled mess. Suggestions were
On Jan. 23, 2007 the W3C granted Recommendation status to XQuery, the XML query language designed to do for Web services what SQL did for relational databases. XQuery allows you to work in one common model no matter what type of data you're working with -- relational, XML or object data. It's used for queries that must represent results as XML, to query XML stored inside or outside the database, or to span relational and XML sources.
SQL/XML is another standard that uses declarative, portable queries to return XML by querying relational data. It's an
XML is a 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 that uses the structure of XML intelligently can express queries across all these kinds of data, whether physically stored in XML or viewed as XML via middleware. This specification describes a query language called XQuery, which is designed to be broadly applicable across many types of XML data sources.
This document has been
Although XQuery was initially conceived as a query language for large collections of XML documents, it is also capable of transforming individual documents. As such, its capabilities overlap with XSLT, which was designed expressly to allow input XML documents to be transformed into XML or other formats.The XSLT 2.0 and XQuery standards were developed by separate working groups within W3C, working together to ensure a common approach where appropriate. They share the same data model, type system, and function library, and both include XPath 2.0 as a
Basics
Active XML relies on two key notions:
* AXML documents, that contain calls to web services, and
* AXML services, that are declaratively defined as XQuery queries over AXML documents.
They are used in a peer-to-peer architecture, where each AXML peer holds a repository of AXML documents and provides some AXML services.
AXML documents
Here is a sample AXML document:
<directory>
<dep name="Toy">
<sc>toy.xyz.com/GetToyPersonel()</sc>
</dep>
<dep
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Summary:
LINQ to XML was developed with Language-Integrated Query over XML in mind and takes advantage of standard query operators and adds query extensions specific to XML. The samples in most of this document are shown in C# for brevity.
Introduction:
XML has achieved tremendous adoption as a basis for formatting data whether in Word files, on the wire, in configuration files, or in databases; XML seems to be everywhere. Yet, from a development perspective, XML is still hard to work with. If you ask the average software developer to work in
[July 12, 2004] W3C Releases Public Working Draft for Full-Text Searching of XML Text and Documents. W3C has published an initial Public Working Draft for XQuery 1.0 and XPath 2.0 Full-Text. Created as a joint specification by the W3C XML Query Working Group and the XSL Working Group as part of the XML Activity, this new draft specification defines a language that extends XQuery 1.0 and XPath 2.0 with full-text search capabilities. As defined by the draft, "full-text queries are performed on text which has been tokenized, i.e., broken into a
XQuery is a query language (with some programming language features) that is designed to query collections of XML data. It is semantically similar to SQL.
XQuery 1.0 was developed by the XML Query working group of the W3C. The work was closely coordinated with the development of XSLT 2.0 by the XSL Working Group; the two groups shared responsibility for XPath 2.0, which is a subset of XQuery 1.0. XQuery 1.0 became a W3C Recommendation on January 23, 2007.
"The mission of the XML Query project is to provide flexible query facilities to extract data