The goal of the conventional database is aimed at the online transaction processing of the enterprises. Through the help of the data warehouse, the decision maker can survey the transaction data from different views, monitoring the operations of the corporation and then strengthening the competitive advantage. Most of the current data warehouses are constructed without special considerations for the concurrent control and synchronized update. In this project, we propose a data structure for the data warehouse at first. We construct the data warehouse from the data gotten from the snapshot. Designs are made of deadlock-free operations that concurrently update or query the data warehouse when a transaction is made. The correctness of these concurrent operations and the deadlock-free property are proved.
