METHOD AND APPARATUS FOR DATA ACCESS TO HETEROGENEOUS DATA SOURCES

摘要

The present invention is a middleware system which can provided efficient access to disparate data sources such as relational databases, non-relational databases, multidimensional databases and the like, in a manner which requires the selection of the data access parameters to be done only once and wherein these selected parameters are thereafter useable for the desired data access regardless of changes to the file structures of the data sources themselves. Additionally, access to newly specifided data sources can be easily added to the system. Obtained data from the disparate data sources are displayed in a common format regardless of the source of the data and are displaced as streamed result sets.