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Welcome to the Query Portal, which is one of the #REDIRECT [[Main Page|Main Sections]] of this documentation. BaseX provides an implementation of the W3 [ XPath] and [ XQuery] languages, which are tightly coupled with the underlying database store. High conformance with the official specifications is one of our main objectives, as the results of the [ XQuery Test Suite] demonstrate. This section contains general information on the query processor and its numerous extensions. ==Features==* [[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]]: how to access and call Java code from XQuery* [[Packaging]]: embedding of external function modules, based on the [ EXPath Packaging System]* [[XQuery Errors|Errors]]: errors raised by XQuery expressions* [[Serialization]]: serialization parameters supported by BaseX ==Modules== Beside the standard [ XQuery Functions], BaseX offers additional function modules, which are listed in the following table. All modules are statically bound, which means that they need not (but may) be explicitly declared in the query prolog. {| class="wikitable sortable"|-! Module! Description! Prefix! Namespace URI|-| [[Cryptographic Module|Cryptography]]| Cryptographic functions, based on the [ EXPath Cryptograhic] module.| <code>crypto</code>| <code><nowiki></nowiki></code>|-| [[Database Module|Database]]| Functions for accessing and updating databases.| <code>db</code>| <code><nowiki></nowiki></code>|-| [[File Module|File]]| File handling, based on the latest draft of the [ EXPath File] module.| <code>file</code>| <code><nowiki></nowiki></code>|-| [[Full-Text Module|Full-Text]]| Functions for performing full-text operations.| <code>ft</code>| <code><nowiki></nowiki></code>|-| [[HTTP Module|HTTP]]| Sending HTTP requests, based on the [ EXPath HTTP] module.| <code>http</code>| <code><nowiki></nowiki></code>|-| [[Higher-Order Functions Module|Higher-Order Functions]]| Additional [[Higher-Order Functions]] that aren't in the standard libraries. | <code>hof</code>| <code><nowiki></nowiki></code>|-| [[Index Module|Index]]| Functions for requesting details on database indexes. {{Version|7.1}}| <code>index</code>| <code><nowiki></nowiki></code>|-| [[JSON Module|JSON]]| Parsing and serializing [ JSON documents].| <code>json</code>| <code><nowiki></nowiki></code>|-| [[Map Module|Map]]| Functions for handling maps (key/value pairs).| <code>map</code>| <code><nowiki></nowiki></code>|-| [[Math Module|Math]]| Mathematical operations, extending the [ W3C Working Draft].| <code>math</code>| <code><nowiki></nowiki></code>|-| [[Repository Module|Repository]]| Installing, deleting and listing packages. {{Version|7.1}}| <code>repo</code>| <code><nowiki></nowiki></code>|-| [[SQL Module|SQL]]| JDBC bridge to access relational databases.| <code>sql</code>| <code><nowiki></nowiki></code>|-| [[Utility Module|Utility]]| Utility functions, used for data conversions, profiling and dynamic evaluation.| <code>util</code>| <code><nowiki></nowiki></code>|-| [[XSLT Module|XSLT]]| Stylesheet transformations, based on Java’s and Saxon’s XSLT processor.| <code>xslt</code>| <code><nowiki></nowiki></code>|-| [[ZIP Module|ZIP]]| ZIP functionality, based on the [ EXPath ZIP] module.| <code>zip</code>| <code><nowiki></nowiki></code>|} [[Category:XQuery]]
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