Distributed Databases Questions
Data independence in a distributed database refers to the ability to modify the physical organization or location of data without affecting the application programs or users accessing that data. It allows for changes in the distribution of data across different nodes in the network without requiring any modifications to the applications or queries.
Data allocation in a distributed database involves determining how and where the data is stored across multiple nodes in the network. It includes decisions on which data should be replicated or partitioned, and how the data should be distributed to ensure efficient access and minimize network traffic. Data allocation strategies aim to optimize performance, availability, and reliability of the distributed database system.