Research on data integration based on virtual view and its application
Ju Xie · Engineering Journal of Wuhan University · 2014
The paper brought out a multi-source data integration method based on virtual view because the traditional virtual data integration exists the faults of configuration inconvenience,the definition of process is complex and a large amount of data is copying in the process of data integration for traditional virtual database.The method converts the physical data into unified data model by using classification and wrapper and unifying the physical data interface of heterogeneous data sources in the bottom layer.Then it creates local virtual data view and global virtual data view of physical data in the upper layer.Users can query the information in each system by using unified access interface without moving and copying data.So it solves the problem of homonyms and synonyms of multisource in data integration process,and simplifies the query definition process of data integration and realizes the integration of multi-source heterogeneous data effectively.