Distributed Database Management Systems: A Practical ApproachThis book addresses issues related to managing data across a distributed database system. It is unique because it covers traditional database theory and current research, explaining the difficulties in providing a unified user interface and global data dictionary. Design, transaction management and concurrency control are different for distributed databases, as are replication control, fault tolerance, and distributed query optimization. The book gives implementer guidance on hiding discrepancies across systems and creating the illusion of a single repository for users. The book also includes three sample frameworks--implemented using J2SE with JMS, J2EE, and Microsoft .Net--that readers can use to learn how to implement a DDBMS and explore some of the implementation issues. Each framework works with a variety of DBMSs and includes an example extension.