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Which three functions are performed by the SQL Tuning Adviso

题目
多选题
Which three functions are performed by the SQL Tuning Advisor？（）
A

Building the SQL profile

B

Recommending optimization of materialized views

C

Checking query objects for missing and stale statistics

D

Recommending bitmap， function-based， and B-tree indexes

E

Recommending restructuring SQL queries that are using bad plans

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相似问题和答案

第1题：

You want to analyze a SQL Tuning Set (STS) using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set?（）

A.Every SQL statement in the STS is considered only once for execution

B.The SQL statements in the STS are executed concurrently to produce the execution plan and execution statistics

C.The execution plan and execution statistics are computed for each SQL statement in the STS

D.The effects of DDL and DML are considered to produce the execution plan and execution statistics


参考答案：A, C

第2题：

Which three functions are performed by the SQL Tuning Advisor?（） (Choose three.)

  • A、Building the SQL profile
  • B、Recommending optimization of materialized views
  • C、Checking query objects for missing and stale statistics
  • D、Recommending bitmap, function-based, and B-tree indexes
  • E、Recommending restructuring SQL queries that are using bad plans

正确答案:A,C,E

第3题：

Which three functions are performed by the SQL Tuning Advisor? ()

A. Building the SQL profile

B. Recommending optimization of materialized views

C. Checking query objects for missing and stale statistics

D. Recommending bitmap, function-based, and B-tree indexes

E. Recommending restructuring SQL queries that are using bad plans


参考答案：A, C, E

第4题：

Which statement is true when you run the SQL Tuning Advisor with limited scope？（）

  • A、Access path analysis is not performed for the SQL statements.
  • B、SQL structure analysis is not performed for the SQL statements.
  • C、SQL Profile recommendations are not generated for the SQL statements.
  • D、The staleness and absence of the statistics are not checked for the objects in the query supplied to the SQL Tuning Advisor.

正确答案:C

第5题：

Which three functions are performed by the SQL Tuning Advisor?（）

  • A、Building and implementing SQL profiles
  • B、Recommending the optimization of materialized views
  • C、Checking query objects for missing and stale statistics
  • D、Recommending bitmap, function-based, and B-tree indexes
  • E、Recommending the restructuring of SQL queries that are using bad plans

正确答案:A,C,E

第6题：

Which three functions are performed by the SQL Tuning Advisor?() (Choose three.)

A. Building the SQL profile

B. Recommending optimization of materialized views

C. Checking query objects for missing and stale statistics

D. Recommending bitmap, function-based, and B-tree indexes

E. Recommending restructuring SQL queries that are using bad plans


参考答案：A, C, E

第7题：

Which three statements about performance analysis by SQL Performance Analyzer are true? （）(Choose three.)

  • A、It detects changes in SQL execution plans.
  • B、It produces results that can be used to create the SQL plan baseline.
  • C、The importance of SQL statements is based on the size of the objects accessed.
  • D、It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.
  • E、It shows only the overall impact on workload and not the net SQL impact on workload.

正确答案:A,B,D

第8题：

Identify the activities performed as part of the Automatic SQL Tuning process in the maintenance window?()

A. generating the SQL profile

B. testing and accepting the SQL profile

C. generating a list of candidate SQLs for tuning

D. adding tuned SQL plans into the SQL plan baseline

E. tuning each SQL statement in the order of importance

F. generating baselines that include candidate SQLs for tuning


参考答案：A, B, C, E

第9题：

Which of the following identifies and creates an index to minimize the DB time for a particular SQL statement？（）  

  • A、 The SGA Tuning Advisor
  • B、 The SQL Access Advisor
  • C、 The SQL Tuning Advisor
  • D、 The Memory Advisor

正确答案:C

第10题：

What happens when you run the SQL Tuning Advisor with limited scope？（）  

  • A、 Access path analysis is not performed for SQL statements.
  • B、 SQL structure analysis is not performed for SQL statements.
  • C、 SQL Profile recommendations are not generated for SQL statements.
  • D、 Staleness and absence of statistics are not checked for the objects in the SQL Tuning Advisor.

正确答案:B

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