GATE Computer Science (CS) 2016 Shift 2 Solved Paper
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Question : 61 of 65
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Consider the following database schedule with two transactions, T1 and T2.
S = r2(X); r1 (X); r2(Y); w1(X); r1 (Y); w2(X); a1; a2
where ri(Z) denotes a read operation by transaction Ti on a variable Z, wi(Z) denotes a write operation by Ti on a variable Z and ai denotes an abort by transaction Ti.
Which one of the following statements about the above schedule is TRUE?
S = r2(X); r1 (X); r2(Y); w1(X); r1 (Y); w2(X); a1; a2
where ri(Z) denotes a read operation by transaction Ti on a variable Z, wi(Z) denotes a write operation by Ti on a variable Z and ai denotes an abort by transaction Ti.
Which one of the following statements about the above schedule is TRUE?
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