Difference between revisions of "XQuery"

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Welcome to the Query Portal, which is one of the [[Main Page|main]] sections of this documentation. Here you can find more information on performing XPath and XQuery requests. Apart from standard features, BaseX offers numerous extensions, which are listed on this page.
 
Welcome to the Query Portal, which is one of the [[Main Page|main]] sections of this documentation. Here you can find more information on performing XPath and XQuery requests. Apart from standard features, BaseX offers numerous extensions, which are listed on this page.
  
==XQuery==
+
==Overview==
 
* [[Full-Text]]: full-text features of XQuery
 
* [[Full-Text]]: full-text features of XQuery
 
* [[Update]]: update mechanism of XQuery
 
* [[Update]]: update mechanism of XQuery

Revision as of 01:19, 14 March 2011

Welcome to the Query Portal, which is one of the main sections of this documentation. Here you can find more information on performing XPath and XQuery requests. Apart from standard features, BaseX offers numerous extensions, which are listed on this page.

Overview

XQuery Functions

Module Description Prefix Namespace URI
Database Accessing the database and indexes. db http://basex.org/db
Full-Text Performing full-text operations. ft http://basex.org/ft
Utility Testing and profiling functions. util http://basex.org/util
File File handling, inspired by the EXPath File module. file http://basex.org/file
ZIP ZIP, based on the EXPath ZIP module. Version 6.5.2 zip http://expath.org/ns/zip
HTTP Sending HTTP requests, based on the EXPath HTTP module. http http://expath.org/ns/http-client
Math Mathematical operations, extending the W3C Working Draft. math http://www.w3.org/2005/xpath-functions/math

Note that all namespace URIs are statically bound in BaseX, i.e., they need not be declared in the query prolog. All XQuery 3.0 functions are listed in the XQuery 3.0 Functions and Operators draft; we have added a list of all new functions that are already supported by BaseX.

Indexes

Queries will be analyzed and optimized for index access on the fly.