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How do we generally recover from a deadlock?

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+1 vote
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in RDBMS by (118k points)
How do we generally recover from a deadlock?

(a) By aborting all the transactions

(b) By rolling back all the transactions

(c) By rolling back only a selected number of transactions

(d) None of the mentioned

I have been asked this question in semester exam.

My question is based upon Deadlock Handling in chapter Concurrency Control of RDBMS

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Best answer
Right option is (c) By rolling back only a selected number of transactions

Explanation: We generally recover from deadlocks by rolling back only a selected number of transactions

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