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What are the costs to be considered when a transaction has to be rolled back when recovering from deadlock?
Ans: A few transaction will must rolled back (made a victim) to break deadlock.
Choose that transaction as victim which will incur minimum cost.
What are wait-for-graphs?Give the algorithm to construct a wait-for-graph from a given schedule of transactions? How can deadlocks be detected from wait-for-graphs? Ans: The
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