Difference Between homogeneous distributed database and ...
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A distributed database management system (D–DBMS) is the software that
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distribution ...
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Difference Between homogeneous distributed database and heterogeneous distributed database
In a homogeneous distributed database 1. 2. 3. 4.
All sites have identical software. Are aware of each other and agree to cooperate in processing user requests. Each site surrenders part of its autonomy in terms of right to change schemas or software. Appears to user as a single system.
In a heterogeneous distributed database 1. 2. 3. 4.
Different sites may use different schemas and software. Difference in schema is a major problem for query processing. Difference in software is a major problem for transaction processing. Sites may not be aware of each other and may provide only limited facilities for cooperation in transaction processing
