This article has multiple issues. Unsourced material may be challenged and removed. Replication involves using specialized software that looks for changes in the distributive database. Once the distributed database system book pdf have been identified, the replication process makes all the databases look the same.
The replication process can be complex and time-consuming depending on the size and number of the distributed databases. This process can also require a lot of time and computer resources. Duplication, on the other hand, has less complexity. The duplication process is normally done at a set time after hours. This is to ensure that each distributed location has the same data. In the duplication process, users may change only the master database. This ensures that local data will not be overwritten.