Though the XSLT and XQuery share the same data model, type system and function library they are created by different working groups within W3C in order to work in large collections the query language was initially created and this language deals with the large collections of XML documents and not only with large collection of the documents it can also work with the documents that are individual documents, there are many differences between these languages.
In the web development circles the XHTML is continually expanding, since there are
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
The XPath specification is the foundation for a variety of specifications, including XSLT and linking/addressing specifications such as XPointer. So an understanding of XPath is fundamental to a lot of advanced XML usage. This section provides a thorough introduction to XPath in the context of XSLT so that you can refer to it as needed.
Note: In this tutorial, you won't actually use XPath until later, in the section, Transforming XML Data with XSLT. So, if you like, you can skip this section and go on ahead to the next section, Writing Out a DOM as
Abstract
XPath 2.0 is an expression language that allows the processing of values conforming to the data model defined in [XQuery/XPath Data Model (XDM)]. The data model provides a tree representation of XML documents as well as atomic values such as integers, strings, and booleans, and sequences that may contain both references to nodes in an XML document and atomic values. The result of an XPath expression may be a selection of nodes from the input documents, or an atomic value, or more generally, any sequence allowed by the data model. The name of
Abstract
XSLT 2.0 and XQuery 1.0 have been developed by two Working Groups in close collaboration, and there is a high degree of overlap in the functionality of the two languages. They share many common concepts, such as the underlying data model, and they both include the whole of XPath 2.0 as a sublanguage, together with its extensive repertoire of data types and the associated function library.
The two languages focus on different needs, and to some extent these needs exist in different user communities. This makes it understandable that many
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