Chapter 5. Support of standard XQuery Update

Qizx fully supports XQuery Update Facility 1.0 as specified in the W3C's Working Draft dated 28 August 2007.

This extension allows updating XML documents using four primitive operations insert, delete, replace and rename. It also defines a copy/modify/return instruction which allows transforming an XML tree by first copying it, then updating the copy using the four primitive operations. For a more detailed introduction, please read the XQuery Update tutorial available on the Qizx web site.

Specifics of XQuery Update in Qizx

The XQuery Update specifications leave some room for implementation-specific features. Here are the specifics in Qizx:



[2] "parsed documents" are documents which are not stored in an XML Library, but loaded into memory by XML parsing a file or from an URL.