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Database Management SystemBriefly explain the ACID property of database system.20187mDATABASE MANAGEMENT SYSTEMExplain ACID properties.20247mDatabase Management SystemIn ACID properties, which component ensures that once a transaction is committed, it remains so? (i) Atomicity (ii) Durability (iii) Isolation (iv) Consistency20242mDatabase Management SystemList the ACID properties. Explain the usefulness of each.20207m
PreviousRelation R (ABCDEFGH) contains only atomic values for all of its attributes. F = {CH → G, A → BC, B → CFH, E → A, F → EG} is a set of functional dependencies (FDs) so that F is exactly the set of FDs that hold for R. (i) Find all the candidate keys the relation R have? (ii) Find the highest normal form with justification in which R exist?NextConsider the transactions T1, T2 and T3 and schedules S1 and S2 given below: T1 : r1 (X); r1(Z); w1 (X); w1 (Z), T2 : r2 (Y); r2 (Z); w2 (Z) T3 : r3 (Y); r3 (X); w3 (Y) S1 : r1 (X); r3(Y); r3(X); r2 (Y); r2(Z); w3(Y); w2 (Z); r1 (Z); w1(X), w1 (Z). S2 : r1 (X); r3 (Y); r2(Y); r3(X); r1(Z); r2(Z); w3 (Y); w1 (X); w2(Z), w1 (Z). Determine which of the above schedules are conflict – serializable.
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