How The Distributed Database Different From Centralized Database?
Distributed databases can be defined as a collection of multiple, logically interrelated databases distributed over a computer network. And distributed database management system (DDBMS) manages the distributed databases and makes this distribution transparent to the user. All the database must be logically related that are managed by DDBMS (distributed database management system). The distributed databases are not just the ‘collection of files’ stored individually at different network nodes. Rather to form DDBS (distributed databases) all the files should be logically related and there should be structures among those files. In the case of distributed databases, data must be physically distributed across the network nodes otherwise they will simply be separate databases not ‘distributed databases’. Sometimes the multiprocessor system is also considered as distributed data processing systems but in fact it is not true. As multiprocessor system may use either ‘shared-nothing architectur