You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improv

题目

You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance？（）

A、run Segment Advisor
B、run SQL Tuning Advisor on top SQL statements
C、run the Automatic Workload Repository （AWR） report
D、run the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements

参考答案和解析

正确答案:B

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相似问题和答案

第1题：

If you leave the club, you will not be____________ back in .

A. received B. admitted C. turned D. moved

正确答案：B

第2题：

听力原文：We have to inform. you that the documents you presented have been received without the original.

(7)

A．The documents presented by you are original.

B．The documents we received are not original.

C．You are requested to present other documents.

D．The documents presented to us are in order.

正确答案：B
解析：单句意思为“我们必须通知您贵方所呈交的单据没有正本。”

第3题：

( )your letter of March 5,we are pleased to inform. you that the L／C has been received.

A.Replying to

B.Replying for

C.Replied to

D.Replied for

参考答案：A

第4题：

If you receive the signal over radiotelephone of Romeo Papa Tango while using the International Code of Signals, you should ______.

A.report to the caller

B.contimue since he received your last transmission

C.end the transmission

D.repeat your last transmission

正确答案：D
假如当你使用国际信号码在无线电话上收到RPT时，你应重复你最后的发射（内容）。

第5题：

Are you satisfied with the grades you received in school?

正确答案：

第6题：

—() — In most cases, it is the total income received.

A. What does taxable income refer to?

B. Why do you want to know taxable income?

C. When do you start to learn taxable income?

参考答案：A

第7题：

Part A

51. Directions:

You have just received a letter from a company, which replied your application for a job and asked you to go to the interview on August 30. Please write a reply which is about 100 words on ANSWER SHEET II. Do not sign your own name at the end of the letter. You do not need to write the address. ( 10 points)

正确答案：
Dear Mr．Wang，
    Thank you for your reply of August 20 about my application for a position．It came to hand this morning as a pleasant surprise． I am glad to tell you that I will attend the interview at the time you set for the morning of August 30．I will bring along full details of my testimonials as you suggested，
    I Would like to introduce myself to the company and hope to be a member of it．I would certainly spare no effort to acquit myself to your satisfaction．
                                  Yours respectfully，
                                              X X X

第8题：

If you leave the club, you will not be back in .

A. received B. admitted C. turned D. moved

正确答案：B

第9题：

Have you received any degrees?

正确答案：

第10题：

Don't forget the day __________you were received into the Youth League.

A．when
B．that
C．at which
D．where

答案：A

解析：

考查定语从句。此句是由关系副词when引导的定语从句，修饰先行词the day，在从句中作时间状语．相当于on which。句意为“不要忘记你被接纳进入团支部的那一天”。

You received complai

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