T1:r(A),w(A),r(B),w(B),c
T2: r(A),r(B),c
how many recoverable schedule possible over T1,T2?
how many cascadeless schedule possible over T1,T2?
T3:w(X);w(Y);R(Z);C;
T4:w(Y);R(Y);C
how many recoverable schedule possible over T3,T4?
how many cascadeless schedule possible over T3,T4?
T5:R(P);R(P);W(Q);W(Q)C;
T6:R(P);W(P);C
how many recoverable schedule possible over T5,T6?
how many cascadeless schedule possible over T5,T6?