Oracle认证考试

What view might you use to try to determine how long a particular backup will take?（）A、V$SESSION_EVENT B、V$SESSION C、V$W0041ITSD、V$WAITSTAT E、V$SESSION_LONGOPS 

题目

What view might you use to try to determine how long a particular backup will take?（）

  • A、V$SESSION_EVENT 
  • B、V$SESSION 
  • C、V$W0041ITS
  • D、V$WAITSTAT 
  • E、V$SESSION_LONGOPS 
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相似问题和答案

第1题：

What really made me decide to buy the house was the beautiful () through the window.

A、vision

B、look

C、picture

D、view


参考答案：B

第2题：

In some societies people want children for what might be family reasons.


参考答案： 在某些社会中，人们希望拥有孩子是出于所谓的家庭原因。

第3题：

What does"a bird's-eye view"mean?

A． See a view with a bird' s eyes.

B． A bird looks at a beautiful view.

C． It is a general view from a high position.

D． If is a scenic place.


正确答案：C
a bird’s-eye view是美国俚语，意为“从高处向下看的景致：俯视”。A项意为“用鸟的眼睛看景点”；B项意为“鸟在看美景”；D项意为风景点。故C为正确选项。

第4题：

You are granted the CREATE VIEW privilege. What does this allow you to do? ()

A. Create a table view.

B. Create a view in any schema.

C. Create a view in your schema.

D. Create a sequence view in any schema.

E. Create a view that is accessible by everyone.

F. Create a view only of it is based on tables that you created.


参考答案：C

第5题：

---Look at the rainbow! What a view! ---_______.

A、Yes. What beautiful it is

B、Yes. How beautiful it is

C、Yes. What a beautiful it is

D、Yes. How a beautiful it is


参考答案：B

第6题：

I don't regret ______ even if it might have upset her.

A. to tell her what I thought

B. to have told her that I thought

C. telling what I thought

D. telling her what I thought


正确答案：D
regret后接动名词表示“后悔干了某事”，后接不定式表示“遗憾要干某事”。

第7题：

It’s no use___ with him. You might as well____ with a stone wall. He is incapable of seeing anyone else’s point of view.

A、arguing; argue

B、to argue; arguing

C、arguing; arguing

D、to argue; argue


参考答案：A

第8题：

What kind of diseases might be infected by blood transfusion? ()

A. AIDS

B. flu

C. hepatitis

D. stroke


参考答案：AC

第9题：

What is true about updates through a view? ()

A. You cannot update a view with group functions.

B. When you update a view group functions are automatically computed.

C. When you update a view only the constraints on the underlying table will be in effect.

D. When you update a view the constraints on the views always override the constraints on the underlying tables.


参考答案：A

第10题：

Examine the structure of the EMPLOYEES table:What is the correct syntax for an inline view?()

A.

B.

C.

D.


参考答案：A

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