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What are the two approaches to store relations in distributed database?
a) Replication
b) Fragmentation
Explain the Strategy of Database Planning ?
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What is completeness constraint on generalization? Define the variation between total and partial design constraint. Give an example each. Ans: Completeness Constraints
Availability: A site having the copy of a replicated relation fails, even then the relation may be found in another site. Therefore, the system may carry on to process at least th
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