Data Representation,Extraction and Integration Process For web and Database

The WWW is considered as a collection of heterogeneous information sources available online. However this information (web sources) need to be integrated and inquired uniformly, and transparently from direct intercalation with web sources detailed. This problem called a data integration problem, where uniform access to a multiple heterogeneous information is desired. In fact, this problem has received a considered attention from researcher in field of database systems. In this report we discuss the Information integration system approach that is used in many existing integrating tools and we propose a new hybrid approach to overcome the drawbacks of query optimization found in that approaches. Also a proposed solution to an outstanding problem in the information integration process is discussed with a solution solved some of these problem