08. Consider the following database schedule with two transactions, 11 and T2 $S=r 2(X) ; r 1(X) ; r 2(Y) ; w 1(X) ; r 1(Y) ; $ w2 $(x); a 1 ; a 2$ where ri(2) denotes a read operation by transaction Ti on a variable Z, wi(2) denotes a write operation by $\mathrm{Ti}$ on a variable $2$ and ai denotes an abort by transaction $\mathrm{Ti}$. cs.vs. 1189