Data Integration of Separated Databases Using Schema Based Approach

Today, many business applications continue theongoing creation of separated data stores; datamining often requires data integration for those data.This process becomes significant in a variety ofsituations both commercial and scientific. The maincontribution of data integration system is that usercan focus on specifying what data they want ratherthan on describing how to obtain it. This paperproposes a system for integrated access to data thatare related, but exist in separated databases. In thissystem, a data integration tool is created for differentdata that are stored in different databases. Thissystem will make integrated access based onparticipant databases' export schemas by using datadictionary and type dictionary. Each export schemacontains information about attributes containing ineach database. This system also defines attributenames, attribute types, and attribute length for tablesthat user wants to integrate and gives integratedresults to user