Oracle认证考试
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）
题目
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.
相似问题和答案
第1题：
A、make a, won't
B、will make a, aren't
C、make a, mustn't
第2题：
If I hadn’t listened to you, I would _have made_ (make) such a silly mistake.
have made
第3题：
A.mustn’t you
B.haven’t you
C.didn’t you
D.hadn’t you
第4题：
A、may not make
B、might not make
C、shouldn t have made
D、might not have made
第5题：
To persuade people , you must be able to find out
a ( ) for them to do it.
A. method
B. reason
C. mistake
第6题：
A.for you to make
B.of you to make
C.for your making
D.of your making
第7题：
A、have made
B、has made
C、were made
D、is made
第8题：
(A) Oh, nothing!
(B) Never mind. We all make mistakes.
(C) You should blame yourself.
(D) Don’t worry.
正确答案：B
解答参考：B.当对方在你面前抱怨自己做错了事时，应进行实质性的安慰，而D为敷衍性答复。AC为非礼貌用语。
第9题：
– I’m sorry for my mistake. -- ________________.
A、It doesn’t matter.
B、Thank you.
C、I apologize.
D、Sure.
第10题：
Just as in face-to-face communication, there are some basic rules of behavior(行为) that should be followed on the Internet. The basic rule is simple: treat others in the same way you would want to be treated. ①Imagine how you’d feel if you were in the other person’s shoes.
For anything you’re about to send: ask yourself, “ Would I say that to the person’s face?” If the answer is no, rewrite and reread. If someone in the chat room is rude to you, you needn’t to fire back. You should either ignore(不理睬) the person, or use your chat software to block their messages. Remember to respect the beliefs and opinions of others in the chat room.
②Offer advice when asked by newcomers, as they may not be sure what to do or how to communicate. When someone makes a mistake, be kind about it. If you do decide to tell someone about the mistake, point it out politely. At the same time, if you find you are wrong, be sure to correct yourself and apologize to those that you have offended(冒犯).③询问别人诸如年龄、性别和家庭情况等隐私问题是不礼貌的。Unless you know the person very well, and you are both comfortable with sharing personal information, or don’t ask such questions.
76. In the chat room we must respect others’ ____________ and __________.
beliefs, opinions