The database is most vulnerable to failure after a change to its structure.
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Q12: The size of a lock is referred
Q13: The DBA has to find a balance
Q14: Concurrency control measures are taken to ensure
Q15: Resource locking is one remedy to the
Q16: One important reason for documenting changes to
Q18: A transaction is sometimes called atomic because
Q19: The DBA is responsible for managing changes
Q20: A transaction is a series of actions
Q21: The transaction boundaries are the essential information
Q22: In general,optimistic locking is the preferred technique
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