XQuery Update Facility (XQUF)

The XQuery Update Facility (XQUF) is an extension of the XQuery language, designed to modify XML data directly. While XQuery is primarily used to retrieve and manipulate data, XQUF allows users to add, delete, or update elements and attributes in XML documents. This capability is essential for applications that need to manage and transform XML data seamlessly, such as databases or data processing systems. In essence, XQUF provides the tools to not only query XML data but also to change it, making it more versatile for developers working with XML-based information.