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For each of the following schedules, draw the precedence graph and argue if the schedule is...

For each of the following schedules, draw the precedence graph and argue if the schedule is con ict

serializable. If the schedule is con ict serializable, give one possible equivalent serial schedule. (Ri

means transaction i reads an item and Wi writes an item.)

a) R1(A);W1(A);R2(A);R2(B);W3(B);W2(C);R4(A);R4(B);R4(C);R2(D);R3(E);W1(E);

b) R1(A);R4(A);W1(A);W3(B);R2(A);R2(B);R4(B);R4(C);R2(D);R3(E)

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