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NIELIT 2023: Relational Algebra and Transactions concepts
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Question 1
Which of the following is not a property of transactions?
Question 2
Which property ensures that the changes exist permanently in a database and data is never lost even if there occurs a failure of any kind?
Question 3
Which of the following is not a transaction state?
Question 4
In which phase, a new lock on the data item may be acquired by the transaction, but none can be released in 2PL?
Question 5
Which of the following statements are true:
S1: Every conflict serializable schedule is also view serializable.
S2: Every view serializable schedule that is not conflict serializable has blind writes.
S1: Every conflict serializable schedule is also view serializable.
S2: Every view serializable schedule that is not conflict serializable has blind writes.
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GATE & PSU CSDatabasesJun 26GATE & PSU CS
