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State true or false: Wait die scheme is a non-preemptive technique

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in RDBMS by (118k points)
State true or false: Wait die scheme is a non-preemptive technique

(a) True

(b) False

This question was posed to me in an online interview.

The doubt is from Deadlock Handling topic in chapter Concurrency Control of RDBMS

1 Answer

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Best answer
Right answer is (a) True

To explain: The wait-die scheme is a non-preemptive technique. When transaction Ti requests a data item currently held by Tj , Ti is allowed to wait only if it has a timestamp smaller than that of Tj (that is, Ti is older than Tj ). Otherwise, Ti is rolled back (dies).

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