An improved data warehouse structure model
Changyong Liang · Journal of Hefei University of Technology · 2006
As the data warehouse is a repository for vast amounts of diverse information,correct and prompt response to the changes in the source databases(SDBs) is critical to the correctness of the query responses given by the warehouse.In this paper,an improved data warehouse structure model is presented in which an auxiliary structure is added to the warehouse to accept the updates and store them until the data warehouse has available cycle time to incorporate the new data and update the necessary views.Finally,two data warehouse environments are simulated,and the results of simulation prove the superiority of the improved model in design and performance.