TAILIEUCHUNG - Data integration through database federation

Significant trends in analytics and information management, along with regulatory pressures, demand new technologies that can turn increasing volumes of data into insight that can be exploited very rapidly. In addition, customer dynamics are changing more frequently so the need to develop and refresh analytic models that can be managed securely is accelerated. SAS has announced a roadmap for enhanced partnership and deeper technical integration with database management systems (DBMS) providers that will enable SAS® Analytics and data transformation capabilities to be leveraged at the point of transaction rather than the typical extract, transform, and load (ETL) processes in use. | Data integration through database federation by L. M. Haas E. T. Lin M. A. Roth In a large modern enterprise it is almost inevitable that different parts of the organization will use different systems to produce store and search their critical data. Yet it is only by combining the information from these various systems that the enterprise can realize the full value of the data they contain. Database federation is one approach to data integration in which middleware consisting of a relational database management system provides uniform access to a number of heterogeneous data sources. In this paper we describe the basics of database federation introduce several styles of database federation and outline the conditions under which each style of federation should be used. We discuss the benefits of an information integration solution based on database technology and we demonstrate the utility of the database federation approach through a number of usage scenarios involving IBM s DB2 product. In a large modern enterprise it is inevitable that different parts of the organization will use different systems to produce store and search their critical data. This diversity of data sources is caused by many factors including lack of coordination among company units different rates of adopting new technology mergers and acquisitions and geographic separation of collaborating groups. Yet it is only by combining the information from these various systems that the enterprise can realize the full value of the data they contain. In the finance industry mergers are an almost commonplace occurrence. The company resulting from a merger inherits the data stores of the original institutions. Many of those stores will be relational database management systems but often from different manufacturers. One company may have used primarily Sybase Inc. products whereas another may have used products from Informix Software Inc. They may both have had one or more document management systems such .

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