QUESTION 63
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
Correct Answer: D
您使用哪一种方法来撤消特定事务而不影响其所作的更改
其他交易的变化
D.确定所有必要的SQL语句flashback_transaction_query撤消用于恢复
原文：http://blog.csdn.net/xuejiayue1105/article/details/48825951