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Suppose a deadlock occurs in the schedule S given below.


S: l1(A),l3(D),l1(B),u1(A),l2(C),l2(B),l1(D),l2(B),l3(C),l4(A),l4(C),l5(A)


A transaction that causes the least number of cascading rollbacks is

decided to be chosen as victim, then which of the following transaction

cannot be chosen as a victim?


1. T3


2. T2


3. T1


4. Cannot be decided
in Databases by (255 points) | 36 views

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