试题详情
- 单项选择题Which method would you use to undo the changes made by a particular transaction without affecting the changes made by other transactions?（）
A、point-in-time recovery
B、execute the ROLLBACK command with transaction number
C、flashback the database to before the transaction was committed
D、determine all the necessary undo SQL statements from FLASHBACK_TRANSACTION_QUERY and use them for recovery
- D
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