Implementation methods of virtual database
Pan Jiu-hui · Jisuanji gongcheng yu sheji · 2010
Virtual database system is a main method of information integration,but the schema of data source is not transparent for end user,therefore it is not convenient to configure and use,and is a challenging task to create a query in virtual database systems. The simple applied schema integration based on a theory of hypergraph is proposed,and homonymy and synonym are resolved. DBA could define all kinds of view based on metadata which made the users only have a cursory knowledge of the structure of the data sources. The main implementation technology of the system is presented.