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043-114

原创 Linux操作系统 作者:jbymy2000 时间:2012-03-08 09:52:13 0 删除 编辑
114. 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 ea
ch 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.
Answer: E
a要求看数据的不同verson
b要求看sql语句。所以就是E了。

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