Difference between revisions of "XQuery"
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| [[XSLT Functions|XSLT]] | | [[XSLT Functions|XSLT]] | ||
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| <code>xslt</code> | | <code>xslt</code> | ||
| <code><nowiki>http://basex.org/xslt</nowiki></code> | | <code><nowiki>http://basex.org/xslt</nowiki></code> |
Revision as of 22:28, 12 September 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
- Packaging: Based on the EXPath Packaging System
- Full-Text: full-text features of XQuery
- Update: update mechanism of XQuery
- XQuery 3.0: supported features of the upcoming W3C XQuery 3.0 Recommendation
- Java Bindings: how to call Java code from XQuery
- Errors: errors raised by XQuery expressions
XQuery Functions
Module | Description | Prefix | Namespace URI |
---|---|---|---|
Database | Accessing the database and indexes. | db
|
http://basex.org/db
|
File | File handling, based on the upcoming new version of the EXPath File module. | file
|
http://expath.org/ns/file
|
Full-Text | Functions for performing full-text operations. | ft
|
http://basex.org/ft
|
HTTP | Sending HTTP requests, based on the EXPath HTTP module. | http
|
http://expath.org/ns/http-client
|
JSON | Parsing and serializing JSON documents. Version 6.8 | json
|
http://basex.org/json
|
Map | Handling of map structures, based on a preliminary W3C Working Draft. | map
|
http://www.w3.org/2005/xpath-functions/map
|
Math | Mathematical operations, extending the W3C Working Draft. | math
|
http://www.w3.org/2005/xpath-functions/math
|
SQL | JDBC bridge to access relational databases. Version 6.8 | sql
|
http://basex.org/sql
|
Utility | Utility functions, used for data conversions, profiling and dynamic evaluation. | eval
|
http://basex.org/util
|
XSLT | Stylesheet transformations, based on Java’s and Saxon’s XSLT processor. | xslt
|
http://basex.org/xslt
|
ZIP | ZIP functionality, based on the EXPath ZIP module. | zip
|
http://expath.org/ns/zip
|
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; they are all supported by BaseX.
Indexes
Queries will be analyzed and optimized for index access on the fly.
- Overview: All indexes and their functionality
- Execution Plan: Execution plans of the queries