Give an example where resetting the world is impossible

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Reference no: EM131903634

Problem

1. Is optimistic concurrency control more or less restrictive than using time-stamps? Why?

2. Does using timestamping for concurrency control ensure serializability? Discuss.

3. We have repeatedly said that when a transaction is aborted, the world is restored to its previous state, as though the transaction had never happened. We lied. Give an example where resetting the world is impossible.

Reference no: EM131903634

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