Recent questions tagged conflict-serializable

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 In (https://gateoverflow.in/219555/number-of-tables) number of tables to be made was 4, merging E1 and E2 in one table, one for R3, and for E3 and ... , I am confused regarding when to merge tables and when to not, someone please help me 
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Q.3(a): You are given the following schedules involving three transactions (T1, T2, T3) performing operations on database items (A, B, C, D): ... lock and unlock instructions to ensure they adhere to the two-phase locking protocol.
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Consider the following read-write schedule $\text{S}$ over three transactions $T_{1}, T_{2}$, and $T_{3}$ ... $T_{3} T_{1} T_{2}$
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Consider the following two schedules consisting to two transaction $\mathrm{T}_1$ and $\mathrm{T}_2$ :Which of the following is/are true about these ... $\mathrm{S}_2$ are neither conflict equivalent nor conflict serializable.
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Which of the following statements is/are false?In a cascade-less schedule if a transaction $T_j$ read a data item written by transaction $T_i$ then the ... been produced using the $2 \mathrm{PL}$ locking protocol) is conflict-serializable.
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How many total $Conflict$ $Serializable$ $Schedules$ are possible that can be formed by $T1$ and $T2?$T1:$ $r_1(A)$ $r_1(B)$ $w_1(B)$T2:$ $r_2(B)$ $r_2(A)$ $w_2(B)$
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According to me answer is 2.Is it right? Suggestion is needed how to approach this if it is given in more complexity.
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Assume by "Serializability", we mean "Conflict Serializability".For the given schedule, which of the following is TRUE?$\text{T}_1$\text{T}_2$\text{T}_3$ ... serial schedule $\text{T}_2, \text{T}_3, \text{T}_1, \text{T}_4$