On Tuesday， a junior DBA dropped an important application user account， whose schema has important tables. You are asked to recover all the objects in the schema. On investigation， you find that the user account was dropped at 11：00 a.m. and Sunday’s back

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On Tuesday， a junior DBA dropped an important application user account， whose schema has important tables. You are asked to recover all the objects in the schema. On investigation， you find that the user account was dropped at 11：00 a.m. and Sunday’s backup is the most recent backup. Which flashback feature would you use？（）

A、Flashback Drop
B、Flashback Table
C、Flashback Database
D、Flashback Version Query
E、Flashback Transaction Query

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相似问题和答案

第1题：

–What day is tomorrow? –Today is Tuesday. So it’s________.

(A) Monday

(B) Wednesday

(D) Saturday

正确答案：B
解答参考：本题问“明天是星期几”，回答“今天是星期二，所以明天是星期三”。

第2题：

When was Annie's last driving test？

A.On Tuesday. B.On Friday. C.On Thursday.

正确答案：A

第3题：

31. --- Can you come on Monday or Tuesday?

---I’m afraid _______ day is possible.

A. neitherB. either C. some D. any

正确答案：A

第4题：

15． Let's play table tennis _________Tuesday morning，shall we?

A．on

B．in

C．to

D．at

正确答案：A
15.A【解析】句意：咱们周二上午去打乒乓球，好吗？ Tuesday是具体的“某一天”，前面应该用介词on．

第5题：

Student: Good morning, Professor Liu. ______I'm late.

Professor: You are late every morning. You were late Tuesday, yesterday...Don't you have a watch?

正确答案：A

第6题：

What time does my flight leave ____Tuesday?

A.at

B.in

C.by

D.on

参考答案：D

第7题：

____ Tuesday evening at eight, Major Joyee will give a lecture in Bailey Hall on “My Experience in China”.

A. In

B. At

C. Of

D. On

参考答案：D

第8题：

$A=array("Monday","Tuesday",3=>"Wednesday");echo$A[2];代码运行结果是:Monday。()

此题为判断题(对，错)。

正确答案:×

第9题：

On which days did the tourists spend most of their time on the boat?

A. Monday and Tuesday. B. Tuesday and Wednesday.

C. Wednesday and Thursday. D. Monday and Wednesday.

正确答案：D

第10题：

定义如下枚举类型：enum{Monday,Tuesday,Wednesday,Thursday,Friday=2};表达式 Wednesday= =Friday的值是( )。

A．false

B．true

C．2

D．异常

正确答案：B
解析：enum枚举类型名＞{枚举元素表＞}；其中关键词enum”表示定义的是枚举类型，枚举类型名由标识符组成，而枚举元素表由枚举元素或枚举常量组成．本题中的枚举类型中的数据值Wednesday为2，而Friday的值赋值为2，所以判断Wednesday等于Friday的表达式值为真，即true。

On Tuesday， a

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