Briefly define the three problems that can occur because of concurrent processing that are addressed by resource locking.
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Q83: Explain the process of using optimistic locking.
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A)restoring
Q89: Which type of data repository is composed
Q90: Recovering a database via rollback involves _.
A)restoring
Q91: Recovering a database via reprocessing involves _.
A)restoring
Q92: Briefly define the four isolation levels and
Q93: Which of the following would not be
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