EXAMIANS
An ACID transaction is one that is atomic, consistent isolated, and durable.
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Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction?
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A transaction is a series of actions to be taken on the database so that either all of them are performed successfully or none of them are performed at all.
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Locks placed by the DBMS are called ________ .
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Locks placed by command are implicit locks.
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In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed.
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When one transaction reads a changed record that has not been committed to the database a filthy read occurs.
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Which of the following refers to a cursor type where changes of any type and from any source are visible?
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An exclusive lock locks the item from change but not from read.
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Locks placed by the DBMS are explicit locks.
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