Replication Data Concepts For Distributed Database Systems

Replication structures are research areas of all distributed databases.We provide an overview in this paper for comparing the replication strategies for such database systems.The problems considered are data consistency and scalability.These problems preserve continuity with all its replicas spread across multiple nodes between the actual real time event in the external world and the images.A framework for a replicated real time database is discussed and all time constraints are preserved.To broaden the concept of modeling a large database, a general outline is presented which aims to improve the consistency of the data.