Difference between revisions of "XQuery"
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| [[File Functions|File]] | | [[File Functions|File]] | ||
| − | | File handling, based on the latest [http://expath.org/spec/file EXPath File] module | + | | File handling, based on the latest [http://expath.org/spec/file EXPath File] module <font color="orange">BaseX 6.6.2</font>. |
| <code>file</code> | | <code>file</code> | ||
| <code><nowiki>http://expath.org/ns/file</nowiki></code> | | <code><nowiki>http://expath.org/ns/file</nowiki></code> | ||
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| [[Map Functions|Map]] | | [[Map Functions|Map]] | ||
| − | | Handling of map structures, based on a preliminary [http://www.w3.org/TR/xpath-functions-30/ W3C Working Draft]. | + | | Handling of map structures, based on a preliminary [http://www.w3.org/TR/xpath-functions-30/ W3C Working Draft] <font color="orange">BaseX 6.6.2</font>. |
| <code>map</code> | | <code>map</code> | ||
| <code><nowiki>http://www.w3.org/2005/xpath-functions/map</nowiki></code> | | <code><nowiki>http://www.w3.org/2005/xpath-functions/map</nowiki></code> | ||
Revision as of 00:27, 23 April 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
- 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
|
| Full-Text | Performing full-text operations. | ft
|
http://basex.org/ft
|
| File | File handling, based on the latest EXPath File module BaseX 6.6.2. | file
|
http://expath.org/ns/file
|
| HTTP | Sending HTTP requests, based on the EXPath HTTP module. | http
|
http://expath.org/ns/http-client
|
| Map | Handling of map structures, based on a preliminary W3C Working Draft BaseX 6.6.2. | 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
|
| Utility | Testing and profiling functions. | util
|
http://basex.org/util
|
| ZIP | ZIP, 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; 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.
- Overview: All indexes and their functionality
- Execution Plan: Execution plans of the queries
