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Que. 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 :
a. Disjointness condition
b. Completeness condition
c. Reconstruction condition
d. Aggregation condition
Answer:Completeness condition
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