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XML (Extensive Makeup Language) based isomerous data exchange method

A technology of heterogeneous data and conversion methods, which is applied in electrical digital data processing, special data processing applications, instruments, etc., and can solve problems such as non-compliance with XML specifications, poor scalability, and limited data types.

Inactive Publication Date: 2013-05-08
ZHENJIANG HUAYANG INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But DTD also has some shortcomings: DTD itself does not conform to the XML specification; it does not support namespace (Namespace); poor scalability; limited data types, etc.

Method used

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  • XML (Extensive Makeup Language) based isomerous data exchange method
  • XML (Extensive Makeup Language) based isomerous data exchange method
  • XML (Extensive Makeup Language) based isomerous data exchange method

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Embodiment Construction

[0009] The heterogeneity of the database is mainly the heterogeneity of the DBMS, one is the DBMS of Oracle, and the other is the DBMS of SQL Server, and a method of using XML to realize the information exchange between the two heterogeneous databases is designed. The specific implementation of this system can be divided into two parts as a whole, the first is the mapping process from the data in the client Oracle database to the XML document, and the second is the mapping process from the XML document to the SQL Server database.

[0010] 1. Tables and their relationships in the SQL Server database

[0011] There are two tables in the SQL Server database. The data in these two tables is the information we exchange. The information of each table and the constraint relationship between the tables are as follows:

[0012]

[0013]

[0014] constraint PK_student primary key(Id))

[0015]

[0016] constraint PK_depart primary key(class) constraint fk_RCforeign key(calss)R...

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Abstract

The invention discloses an XML (Extensive Makeup Language) based isomerous data exchange method. Due to the extendibility, self-descriptiveness and other characteristics of the XML, a new idea for the exchange of the isomerous data is provided. Based on the XML, the isomerous data exchange method is provided; and specific implantation process of the isomerous data exchange method is provided by combining with an application example.

Description

technical field [0001] The invention relates to a method for exchanging heterogeneous data based on XML, in particular to a method for exchanging heterogeneous data based on XML. Background technique [0002] With the development of database applications today, a considerable number of enterprises and scientific research institutions have accumulated a large amount of data stored in different forms and dependent on different database management systems. How to share these data information is a solution for the further development of enterprises. The problem. In addition, due to historical reasons, many database systems on the Internet are also distributed and heterogeneous. A large amount of information on the Internet must be managed effectively through the database system. How to use these heterogeneous databases reasonably has become an urgent problem to be solved. . A heterogeneous database system is a collection of related multiple database systems to realize data sha...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 杨际荣
Owner ZHENJIANG HUAYANG INFORMATION TECH
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