XQuery Extensions
Working within the W3C XQuery 1.0 Recommendation, MarkLogic has created a number of language extensions enabling key functionality not supported in the current release of the language specification. These extensions provide transactional update capabilities, assorted search and retrieval features, various data manipulation functions, and administrative tools.
The documentation for these extensions, as well as for the XQuery standard functions, is in the XQuery API documentation. Additional details about the XQuery dialects supported by MarkLogic can be found in the XQuery and XSLT Reference Guide.