Maintaining data integrity across sites is perhaps the most difficult aspect of DDBS. Exercises often center on the (Consistency, Availability, Partition Tolerance) and the Two-Phase Commit (2PC) protocol.
Site 1 WFG: [T1] ---> [T2] (T2 is waiting for a resource held by T1) Site 2 WFG: [T2] ---> [T1] (T1 is waiting for a resource held by T2) Maintaining data integrity across sites is perhaps the
The system lacks and Fragmentation Transparency . Node B (Chicago)
Suppose we have a distributed database system for a university with three nodes: Node A ( New York), Node B (Chicago), and Node C (Los Angeles). The database has two relations: Students and Courses . Maintaining data integrity across sites is perhaps the