单选题By mistake， you ran the batch job （for updating the BILL_DETAILS table） twice. You are not sure which rows in the BILL_DETAILS table were affected. You need to identify： a） A list of changes made along with the transaction identifier of each change. b） The necessary SQL statements to undo the erroneous changes. Which option would you choose？（）A RMAN only.B Flashback Table only.C Flashback Version Query only.D Flashback Database and Flashback Transaction Query.E Flashback Version Query and Flashback Transaction Query.
单选题
By mistake， you ran the batch job （for updating the BILL_DETAILS table） twice. You are not sure which rows in the BILL_DETAILS table were affected. You need to identify： a） A list of changes made along with the transaction identifier of each change. b） The necessary SQL statements to undo the erroneous changes. Which option would you choose？（）
A
RMAN only.
B
Flashback Table only.
C
Flashback Version Query only.
D
Flashback Database and Flashback Transaction Query.
E
Flashback Version Query and Flashback Transaction Query.
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