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Which procedure is used for acquiring the necessary locks for a transaction where all nece

Which procedure is used for acquiring the necessary locks for a transaction where all nece

Which procedure is used for acquiring the necessary locks for a transaction where all necessary locks are acquired before any are released?

(a)Record controller
(b)Exclusive lock
(c)Authorization rule
(d)Two phase lock
(e)Three phase lock.

Johnson 28-Dec-2017

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