Make a comparison of the sequences of operations of the transactions T and U and under optimistic concurrency control
What will be an ideal response?
The order of interleavings allowed with two-phase locking depends on the order in which T and U access ai. If T is first we get (b) and if U is first we get (c).
The ordering for two-phase locking is the same (i) optimistic concurrency control.
The ordering for two-phase locking is the same (ii) optimistic concurrency control if we allow transaction T to restart after aborting.
In this example, the sequences of operations are the same for both methods.
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