EXAMIANS
A cursor type in which the application sees the data as they were at the time the cursor was opened is called:
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A durable transaction is one in which all committed changes are permanent.
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The size of a lock is referred to as lock sizing.
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An exclusive lock locks the item from change but not from read.
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In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed.
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Locks placed by the DBMS are explicit locks.
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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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The lost update problem is when User A reads data that have been processed by a portion of a transaction from User B.
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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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Locks placed by command are called ________ .
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