Question 15
Consider the following schedule S as given below: S : R2(A), W2(A),W1(B),W2(C),W3(A),W1(A) According to the timestamp protocol, if the timestamps for transactions T1,T2, and T3 are 7, 2, and 12 respectively, then choose the correct option.
No transaction needs Roll Back.
Transaction T3 needs to Roll Back.
Transaction T2 needs to Roll Back.
Transaction T1 needs to Roll Back.