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Which one of the following is NOT a part of the ACID properties of database transactions?
- a)Atomicity
- b)Consistency
- c)Isolation
- d)Deadlock-freedom
Correct answer is option 'D'. Can you explain this answer?
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Which one of the following is NOT a part of the ACID properties of dat...
ACID properties of database transaction:
- Atomicity: The entire transaction takes place at once or doesn’t happen at all.
- Consistency: The database must be consistent before and after the transaction.
- Isolation: Multiple transactions occur independently without interference.
- Durability: The changes of a successful transaction occurs even if the system failure occurs.
So, deadlock freedom is not the ACID property of database transaction.
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Which one of the following is NOT a part of the ACID properties of dat...
Explanation:
ACID Properties of Database Transactions:
- Atomicity: Atomicity ensures that all operations within a transaction are performed as a single unit of work. This means that either all operations in the transaction are successfully completed, or none of them are.
- Consistency: Consistency ensures that the database remains in a consistent state before and after the transaction. This means that the database constraints, rules, and relationships are maintained during the execution of the transaction.
- Isolation: Isolation ensures that the concurrent execution of transactions does not result in any interference between them. Each transaction should operate independently of other transactions, as if it were the only transaction running on the system.
- Deadlock-freedom: Deadlock-freedom is not a part of the ACID properties of database transactions. Deadlock refers to a situation where two or more transactions are waiting indefinitely for each other to release locks, resulting in a standstill. While deadlock prevention and detection mechanisms are important in database systems, they are not considered a core part of the ACID properties.
Therefore, the correct answer to the question is option D - Deadlock-freedom.
ACID Properties of Database Transactions:
- Atomicity: Atomicity ensures that all operations within a transaction are performed as a single unit of work. This means that either all operations in the transaction are successfully completed, or none of them are.
- Consistency: Consistency ensures that the database remains in a consistent state before and after the transaction. This means that the database constraints, rules, and relationships are maintained during the execution of the transaction.
- Isolation: Isolation ensures that the concurrent execution of transactions does not result in any interference between them. Each transaction should operate independently of other transactions, as if it were the only transaction running on the system.
- Deadlock-freedom: Deadlock-freedom is not a part of the ACID properties of database transactions. Deadlock refers to a situation where two or more transactions are waiting indefinitely for each other to release locks, resulting in a standstill. While deadlock prevention and detection mechanisms are important in database systems, they are not considered a core part of the ACID properties.
Therefore, the correct answer to the question is option D - Deadlock-freedom.
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Which one of the following is NOT a part of the ACID properties of database transactions?a)Atomicityb)Consistencyc)Isolationd)Deadlock-freedomCorrect answer is option 'D'. Can you explain this answer?
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