The Global conceptual Schema in a distributed database contains information about global relations. The condition that all the data of the global relation…
The Global conceptual Schema in a distributed database contains information about global relations. The condition that all the data of the global relation must be mapped into the fragments, that is, it must not happen that a data item which belongs to a global relation does not belong to any fragment, is called:
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Correct answer: (B) Completeness condition
Explanation
Completeness Condition: All the data of the global relation must be mapped into the fragments; it must not happen that a data item which belongs to a global relation does not belong to any fragment.