Q:Question:Consider the following concurrent execution of database transactions T1, T2 and T3. T1: a = read(x) T2: d = read(x) T1: write(y,a+1) T3: b = read(y) write(y,b+2) T2: write(x,d+2) T1: write(x,a-1) T2: write(y,d-2) T1: commit T2: commit T3: commit The concurrent execution given above is not controlled by any scheduler. Show a sample concurrent execution of the transactions T1, T2, and T3 that is controlled by 2-Phase Locking scheduler andA:Answer:See a step by step answer