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W-timestamp(Q) denotes?

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in RDBMS by (118k points)
W-timestamp(Q) denotes?

(a) The largest timestamp of any transaction that can execute write(Q) successfully

(b) The largest timestamp of any transaction that can execute read(Q) successfully

(c) The smallest timestamp of any transaction that can execute write(Q) successfully

(d) The smallest timestamp of any transaction that can execute read(Q) successfully

The question was posed to me in a job interview.

Question is taken from Timestamp based Protocols topic in division Concurrency Control of RDBMS

1 Answer

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Best answer
The correct choice is (a) The largest timestamp of any transaction that can execute write(Q) successfully

Explanation: W-timestamp(Q) denotes The largest timestamp of any transaction that can execute write(Q) successfully.

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