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Consider a large grocery store that has a transaction database that is distributed among four locations, DL1, DL2, D23 and DL4. Transactions in each component

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Consider a large grocery store that has a transaction database that is distributed among four locations, DL1, DL2, D23 and DL4. Transactions in each component database have the same format: T; : (TID; {11, m}), where TID; is a transaction identifier, and ik (1

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