4.11. W3C XQuery event

发布时间 :2023-12-21 23:00:03 UTC      

XQuery is a language used to extract data from XML documents.

4.11.1. Tutorials

To learn more about XQuery, please read our XQuery tutorial.

4.11.2. XQuery version

XQuery 1.0

The XQuery language supports query tools that extract data from XML documents.

4.11.3. W3C XQuery specification and timeline

Standard

Draft / proposal

Recommended time

XQuery Requirements

  1. Mar 2007

XQuery Use Cases

  1. Mar 2007

XQuery 1.0

  1. Dec 2010

XQuery 1.0 Functions

  1. Dec 2010

XQuery 1.0 Data Model

  1. Dec 2010

XQuery 1.0 Semantics

  1. Dec 2010

XQueryX

  1. Dec 2010

XQuery 3.0 Requirements

  1. Sep 2010

XQuery 3.0 Use Cases

  1. Dec 2010

XQuery 3.0

  1. Jun 2010

Principles, Technologies, and Methods of Geographic Information Systems  102

In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress.