Difference between revisions of "Querying"
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Welcome to the Query Portal, which is one of the [[Main Page|Main Sections]] of this documentation. BaseX offers a
Welcome to the Query Portal, which is one of the [[Main Page|Main Sections]] of this documentation. BaseX offers a implementation of the W3 [http://www.w3.org/TR/xpath-30/ XPath] and [http://www.w3.org/TR/xquery-30 XQuery] languages, which are tightly coupled with the underlying database store. This section contains general information on the query processor and its numerous extensions.
Revision as of 17:57, 28 January 2012
Welcome to the Query Portal, which is one of the Main Sections of this documentation. BaseX offers a highly conformant implementation of the W3 XPath and XQuery languages, which are tightly coupled with the underlying database store. This section contains general information on the query processor and its numerous extensions.
- XQuery 3.0: supported features of the upcoming XQuery 3.0 Recommendation
- Full-Text: XPath/XQuery Full Text extends the language with powerful retrieval features.
- Updates: Databases can be modified via the XQuery Update extension
- Java Bindings: described how Java code can be accessed and called from XQuery
- Packaging: allows to embed external function modules, based on the EXPath Packaging System
- Errors: errors raised by XQuery expressions
- Serialization: serialization parameters supported by BaseX
The namespaces of the following XQuery modules are statically bound in BaseX, i.e., they need not (but may) be declared in the query prolog.
|Cryptography||Cryptographic functions, based on the EXPath Cryptograhic module. Version 7.0||
|Database||Functions for accessing and updating databases.||
|File||File handling, based on the latest draft of the EXPath File module.||
|Full-Text||Functions for performing full-text operations.||
|HTTP||Sending HTTP requests, based on the EXPath HTTP module.||
|Index||Functions for requesting details on database indexes. Version 7.1||
|JSON||Parsing and serializing JSON documents. Version 7.0||
|Map||Functions for handling maps (key/value pairs).||
|Math||Mathematical operations, extending the W3C Working Draft.||
|Packaging||Installing, deleting and listing packages. Version 7.1||
|SQL||JDBC bridge to access relational databases. Version 7.0||
|Utility||Utility functions, used for data conversions, profiling and dynamic evaluation.||
|XSLT||Stylesheet transformations, based on Java’s and Saxon’s XSLT processor.||
|ZIP||ZIP functionality, based on the EXPath ZIP module.||