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The Study And Designing Of The Middle Ware Used To Transmit Data Among Heterogeneous Databases

Posted on:2005-08-05Degree:MasterType:Thesis
Country:ChinaCandidate:Y J ShiFull Text:PDF
GTID:2168360122488149Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
With the development of computer and Internet, many enterprises have realized to manage their works by computer. In case of the works of different departments are not the same, they construct their own information serving and managing systems which are isolated. So much as, the working flats of the computer environment are different in every init of a corporation.At the same time, the requirement to the management of information is growing, and the technology of database is becoming more and more advanced. How to handle with the data of heterogeneous Data Sources becomes more and more important. Especially, such problems are often met with by those enterprises and departments, which restore their information into the computers when they manage to transmit their data from the small or old versional database management system to the large or new versional ones.In this paper, the study about the method of transmitting data between heterogeneous databases is presented. And, the designing of the Middle Ware aimed to transmit data among heterogeneous databases is suggested. The author divides the Middle Ware into three parts: source data controlling part, middle data document, aiming data controlling part. The Middle Ware uses the scheme of middle data source: Taking data out of the source data table; then, restoring the source data into the middle data document to reorganize these data and making them acceptable to the aiming data table; finally, putting these organized data into the aiming data table. Additionally, in the designing, the author writes the data types contrasting tables of heterogeneous databases by XML(eXtensible Markup Language) documents, and uses the XML document as middle data source. XML Schema defines the structures of the XML documents. The program uses JDBC-ODBC Bridge to connect and operate the databases.
Keywords/Search Tags:heterogeneous database, middle ware, XML, XML Schema, JDBC-ODBC bridge
PDF Full Text Request
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