Difference between revisions of "XQuery"
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==Overview== | ==Overview== | ||
− | * [[Packaging]]: Based on the [http://expath.org/modules/pkg/ EXPath Packaging System] | + | * [[Packaging]]: Based on the [http://expath.org/modules/pkg/ EXPath Packaging System] |
* [[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 19:49, 30 June 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
|
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
|
Utility | Testing and profiling functions. | util
|
http://basex.org/util
|
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; 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