EXAMIANS
A cursor type in which the application can only move forward through the recordset is called:
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Locks placed by the DBMS are called ________ .
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The advantage of optimistic locking is that:
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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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Two transactions that run concurrently and generate results that are consistent with the results that would have occurred if they had run separately are referred to as serializable transactions.
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Which of the following disallows both dirty reads and nonrepeatable reads, but allows phantom reads?
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Dirty read, nonrepeatable, and phantom reads are not possible in this instance.
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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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Which of the following occurs when one transaction reads a changed record that has not been committed to the database?
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