Describe the features, functions and architecture of those kinds of databases where multiple CPUs are loosely coupled and geographically distributed across several sites with no sharing of physical components.
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Explanation:
In general, distributed databases include the following features:
Location independent.
Distributed query processing.
Distributed transaction management.
Hardware independent.
Operating system independent.
Network independent.
Transaction transparency.
DBMS independent.
The basic function of DDBMS is to keep track of the data distribution, fragmentation and replication by expanding the DDBMS catalog. The basic function of DDBMS is basically its ability to access remote sites and to transmits queries and data among the various sites via a communication network.
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