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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 I

题目
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.


相似考题
更多“While tuning a SQL statement, the SQL Tuning Advisor finds a”相关问题
  • 第1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2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3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. In this case, SQL Tuning Advisor produces recommendations based on statistical checks, access path analysis, and SQL structure analysis. SQL profile recommendations are not generated.

    正确答案:B,C

  • 第4题:

    Which component does the SQL Tuning Advisor NOT analyze for the SQL statements?()  

    • A、ADDM
    • B、AWR
    • C、Cursor Cache
    • D、SQL Tuning Sets
    • E、Flash Recovery Area

    正确答案:E

  • 第5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6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: C
    解析: 暂无解析

  • 第8题:

    单选题
    To view the results of the most recent Automatic SQL Tuning Advisor task, which sequence should you follow?()
    A

    EM Database home page, Software and Support, SQL Advisors, Automatic SQL Tuning Advisor.

    B

    EM Database home page, Software and Support, Advisor Central, SQL Advisors, Automatic SQL Tuning Advisor.

    C

    EM Database home page, Software and Support, Support Workbench, Advisor Central, SQL Advisors, Automatic SQL Tuning Advisor.

    D

    Either B or C

    E

    All of the above


    正确答案: C
    解析: 暂无解析

  • 第9题:

    单选题
    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: D
    解析: 暂无解析

  • 第10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11题:

    单选题
    Which component does the SQL Tuning Advisor NOT analyze for the SQL statements?()
    A

    ADDM

    B

    AWR

    C

    Cursor Cache

    D

    SQL Tuning Sets

    E

    Flash Recovery Area


    正确答案: A
    解析: 暂无解析

  • 第12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

  • 第13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14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15题:

    To view the results of the most recent Automatic SQL Tuning Advisor task,which sequence should you follow?()  

    • A、 EM Database home page,Software and Support,SQL Advisors,Automatic SQL Tuning Advisor
    • B、 EM Database home page,Software and Support,Advisor Central,SQL Advisors,Automatic SQL Tuning Advisor
    • C、 EM Database home page,Software and Support,Support Workbench,Advisor Central,SQL Advisors,Automatic SQL Tuning Advisor
    • D、 Either B or C
    • E、 All of the above

    正确答案:D

  • 第16题:

    You are creating a SQL Tuning Set to allow a group of SQL statements to be passed into the SQL Tuning Advisor. Which packages will you use to create the SQL Tuning Set?()

    • A、 DBMS_WORKLOAD_REPOSITORY
    • B、 DBMS_RESOURCE_MANAGER
    • C、 DBMS_SQLTUNE
    • D、 DBMS_ADVISOR

    正确答案:C

  • 第17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18题:

    单选题
    You are creating a SQL Tuning Set to allow a group of SQL statements to be passed into the SQL Tuning Advisor. Which packages will you use to create the SQL Tuning Set?()
    A

     DBMS_WORKLOAD_REPOSITORY

    B

     DBMS_RESOURCE_MANAGER

    C

     DBMS_SQLTUNE

    D

     DBMS_ADVISOR


    正确答案: A
    解析: 暂无解析

  • 第19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
    To view the results of the most recent Automatic SQL Tuning Advisor task,which sequence should you follow?()
    A

     EM Database home page,Software and Support,SQL Advisors,Automatic SQL Tuning Advisor

    B

     EM Database home page,Software and Support,Advisor Central,SQL Advisors,Automatic SQL Tuning Advisor

    C

     EM Database home page,Software and Support,Support Workbench,Advisor Central,SQL Advisors,Automatic SQL Tuning Advisor

    D

     Either B or C

    E

     All of the above


    正确答案: D
    解析: 暂无解析

  • 第22题:

    多选题
    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. In this case, SQL Tuning Advisor produces recommendations based on statistical checks, access path analysis, and SQL structure analysis. SQL profile recommendations are not generated.


    正确答案: D,C
    解析: 暂无解析

  • 第23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