XML Query Language

If they can keep the acronym soup in the bowl, the W3C may lead another Web revolution. If not...

Perform queries on the XML representation of database data, object data, or other traditional data sources to extract data from these sources, to transform data into new XML representations, or to integrate data from multiple heterogeneous data sources. The XML representation of data sources may be either physical or virtual; that is, data may be physically encoded in XML, or an XML representation of the data may be produced.

Filter streams of XML data, such as logs of email messages, network packets, stock market data, newswire feeds, EDI, or weather data, either as a traditional UNIX-style filter that extracts or transforms its input data, or to specify filters and profiles for routing messages represented in XML.

Perform queries on collections of documents managed by native XML repositories or web servers.