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While tuning a SQL statement, the SQL Tuning Advisor finds an existing SQL profile for the statement that has stale statistics available. What would the optimizer do in this situation?（）A、It updates the existing SQL profiles with current statisticsB、It ma

题目

While tuning a SQL statement, the SQL Tuning Advisor finds an existing SQL profile for the statement that has stale statistics available. What would the optimizer do in this situation?（）

  • A、It updates the existing SQL profiles with current statistics
  • B、It makes the statistics information available to GATHER_STATS_JOB
  • C、It initiates the statistics collection process by running GATHER_STATS_JOB
  • D、It logs a warning message in the alert log so that the DBA can perform statistics collection manually
相似考题

1.View the Exhibit to examine the Automatic SQL Tuning result details.Which action would you suggest for the selected SQL statement in the Exhibit?()A. Accept the recommended SQL profile.B.Collect statistics for the related objects.C. Run the Access Advisor for the SQL statement.D. Run the Segment Advisor for recommendations.

2.You run the SQL Tuning Advisor (STA) to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement, which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile?（）A. The tuned plan is not added to the SQL plan baseline.B. The tuned plan is added to the fixed SQL plan baseline as a fixed plan.C. The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan.D. The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.

3.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 executionB.The SQL statements in the STS are executed concurrently to produce the execution plan and execution statisticsC.The execution plan and execution statistics are computed for each SQL statement in the STSD.The effects of DDL and DML are considered to produce the execution plan and execution statistics

4.Identify the activities performed as part of the Automatic SQL Tuning process in the maintenance window?()A. generating the SQL profileB. testing and accepting the SQL profileC. generating a list of candidate SQLs for tuningD. adding tuned SQL plans into the SQL plan baselineE. tuning each SQL statement in the order of importanceF. generating baselines that include candidate SQLs for tuning

更多“While tuning a SQL statement, th”相关问题

  • 第1题：

    Which of the following cannot be used as input to the SQL Tuning Advisor?() (Choose all that apply.)

    A. A single SQL statement provided by a user

    B. An existing SQL Tuning Set (STS)

    C. A preprocessed Database Replay workload

    D. A schema name

    E. SQL statement identified in EM as using excessive resources


    参考答案：C, D

  • 第2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3题：

    Which of the following cannot be used as input to the SQL Tuning Advisor?（） (Choose all that apply.)

    • A、A single SQL statement provided by a user
    • B、An existing SQL Tuning Set (STS)
    • C、A preprocessed Database Replay workload
    • D、A schema name
    • E、SQL statement identified in EM as using excessive resources

    正确答案:C,D

  • 第4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

    正确答案:A,B,C,E

  • 第5题：

    To view the results of a manual SQL Tuning Advisor task， which steps should the DBA take？（）  

    • A、 From the Advisor Central home page，select the tuning task from the Advisor Tasks section 
    • B、 From Advisor Central，choose SQL Advisors，SQL Tuning Advisors，Manual Tuning Task Results
    • C、 From Advisor Central，choose SQL Advisors，Manual SQL Tuning Advisors，Tuning Task Results
    • D、 Either B or C

    正确答案:A

  • 第6题：

    单选题
    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
    解析： 暂无解析

  • 第7题：

    单选题
    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： A
    解析： 暂无解析

  • 第8题：

    单选题
    Which of the following advisors within the Oracle advisory framework will analyze a single SQL statement and make recommendations for performance improvement?（）
    A

    SQL Repair Advisor

    B

    SQL Optimizer

    C

    SQL Access Advisor

    D

    SQL Tuning Advisor SQL


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    While tuning a SQL statement, the SQL Tuning Advisor finds an existing SQL profile for the statement that has stale statistics available. What would the optimizer do in this situation?（）
    A

    It updates the existing SQL profiles with current statistics.

    B

    It makes the statistics information available to GATHER_STATS_JOB

    C

    It initiates the statistics collection process by running GATHER_STATS_JOB

    D

    It logs a warning message in the alert log so that the DBA can perform statistics collection manually.


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    Which of the following advisors within the Oracle advisory framework will analyze a single SQL statement and make recommendations for performance improvement?（）
    A

    SQL Repair Advisor

    B

    SQL Optimizer

    C

    SQL Access Advisor

    D

    SQL Tuning Advisor


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    While tuning a SQL statement， the SQL Tuning Advisor finds an existing SQL profile for the statement that has stale statistics available. What would the optimizer do in this situation？（）
    A

     It updates the existing SQL profiles with current statistics

    B

     It makes the statistics information available to GATHER_STATS_JOB

    C

     It initiates the statistics collection process by running GATHER_STATS_JOB

    D

     It logs a warning message in the alert log so that the DBA can perform statistics collection manually


    正确答案： D
    解析： 暂无解析

  • 第12题：

    多选题
    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.


    正确答案： C,B
    解析： 暂无解析

  • 第13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14题：

    Which of the following advisors within the Oracle advisory framework will analyze a single SQL statement and make recommendations for performance improvement?（）

    • A、SQL Repair Advisor
    • B、SQL Optimizer
    • C、SQL Access Advisor
    • D、SQL Tuning Advisor

    正确答案:D

  • 第15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

    正确答案:A,B,C,E

  • 第16题：

    Which of the following cannot be used as input to the SQL Tuning Advisor？（）

    • A、 A single SQL statement provided by a user
    • B、 An existing SQL Tuning Set （STS）
    • C、 A preprocessed Database Replay workload
    • D、 A schema name
    • E、 SQL statement identified in EM as using excessive resources

    正确答案:C,D

  • 第17题：

    单选题
    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： B
    解析： 暂无解析

  • 第18题：

    多选题
    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


    正确答案： A,B
    解析： 暂无解析

  • 第19题：

    多选题
    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


    正确答案： A,E
    解析： 暂无解析

  • 第20题：

    单选题
    Which of the following advisors within the Oracle advisory framework will analyze a single SQL statement and make recommendations for performance improvement？（）
    A

     SQL Repair Advisor

    B

     SQL Optimizer

    C

     SQL Access Advisor

    D

     SQL Tuning Advisor


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    You run the SQL Tuning Advisor (STA) to tune a SQL statement that is part of a fixed SQL plan baseline. The STA generates a SQL profile for the SQL statement, which recommends that you accept the profile. Which statement is true when you accept the suggested SQL profile?（）
    A

    The tuned plan is not added to the SQL plan baseline.

    B

    The tuned plan is added to the fixed SQL plan baseline as a fixed plan.

    C

    The tuned plan is added to the fixed SQL plan baseline as a nonfixed plan.

    D

    The tuned plan is added to a new nonfixed SQL plan baseline as a nonfixed plan.


    正确答案： C
    解析： 暂无解析

  • 第22题：

    多选题
    Which of the following cannot be used as input to the SQL Tuning Advisor?（） (Choose all that apply.)
    A

    A single SQL statement provided by a user

    B

    An existing SQL Tuning Set (STS)

    C

    A preprocessed Database Replay workload

    D

    A schema name

    E

    SQL statement identified in EM as using excessive resources


    正确答案： B,E
    解析： 暂无解析

  • 第23题：

    多选题
    Which of the following cannot be used as input to the SQL Tuning Advisor？（）
    A

    A single SQL statement provided by a user

    B

    An existing SQL Tuning Set （STS）

    C

    A preprocessed Database Replay workload

    D

    A schema name

    E

    SQL statement identified in EM as using excessive resources


    正确答案： E,B
    解析： 暂无解析

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