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Long-distance XML data updating method and system

An XML database and data update technology, applied in transmission systems, electrical components, etc., can solve problems such as unfavorable data sharing, lack, and inconformity with service-oriented architecture

Inactive Publication Date: 2009-08-26
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the realization of this method requires the use of a special data update protocol, which requires a dedicated client computer in the system, which does not conform to the current mainstream service-oriented architecture in computer network technology, and is not conducive to the realization of data sharing in the Internet network environment
At the same time, in view of the fact that the XML language has become the data exchange standard of the Internet network, the data access requests of customers in computer network applications generally adopt the standard XML query language (XQuery language). , there is currently no effective way to identify which parts of the content need to be updated

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Embodiment Construction

[0035] The system structure of an implementation case of the present invention is as figure 2 shown.

[0036] Provided in the figure are three client computers 11 at the remote end of the network, equipped with a data browser 22 and an XQuery processor 21, sending the data access request generated by the data browser to the data server 12 through the Internet network, wherein the data access request Expressed in XQuery language.

[0037] The data server 12 is a computer connected to the Internet, and is connected to the network storage device 16 and the XML database 17 through the internal network. The software system of the data server 12 adopts the form of Web service, and provides three Web service operations such as data query operation, data update operation and data change notification operation to Internet network clients.

[0038] When the data server 12 receives the access request of the data query operation from the client computer 11, it processes according to th...

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Abstract

A method for updating remote XML data includes decomposing data access request from far-end client computer to be data processing command sequence by data server for finalizing XML data query, obtaining a positioning information of data update then structuring and returning back data update command sequence presented by XQuery language according to data processing command sequence and background data variation occurred between two requests, finalizing data update by client computer through executing data update command sequence. The system for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a method for a remote data access requester to update data on a data query result according to changes in database content in an Internet-oriented XML database system, and a data update system for realizing the method. Background technique [0002] Extensible Markup Language (XML) has become the de facto standard for network data exchange, and XML databases are widely used to realize data sharing in Internet networks. An Internet-oriented XML database system consists of client computer, data server and XML database. The data access request party sends a data access request from the remote client to access the data server through the Internet network, and the data server is responsible for responding to the data access request, performing data query on the background XML database according to the data access request, and converting the XML data format As a response to the data access request, the data query result is returned t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/00
Inventor 廖湖声金雪云樊昱苏航杜永萍
Owner BEIJING UNIV OF TECH