多选题Which three are the valid statements in relation to SQL plan baselines？（）AThe plans can be manually loaded to the SQL plan baseline.BThe plans in the SQL plan baseline are verified and accepted plans.CThe plans generated for every SQL statement are sto

题目
多选题
Which three are the valid statements in relation to SQL plan baselines？（）
A

The plans can be manually loaded to the SQL plan baseline.

B

The plans in the SQL plan baseline are verified and accepted plans.

C

The plans generated for every SQL statement are stored in the SQL plan baseline by default.

D

The plan baselines are stored temporarily in the memory as long as the database instance is running.

E

For the SQL plan baselines to be accessible to the optimizer， the SYSAUX tablespace must be online.

相似考题

1.Which two statements about the SQL Management Base (SMB) are true?()A. It contains only SQL profiles generated by SQL Tuning Advisor.B. It stores plans generated by the optimizer using a stored outline.C. It is part of the data dictionary and stored in the SYSAUX tablespace.D. It is part of the data dictionary and stored in the SYSTEM tablespace.E. It contains the statement log, the plan history, plan baselines, and SQL profiles.

2.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

3.Which three statements are true about SQL plan directives?()A. They are tied to a specific statement or SQL id.B. They instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan.C. They are used to gather only missing statistics.D. They are created for a query expression where statistics are missing or the cardinality estimates by the optimizer are incorrect.E. They instruct the optimizer to create only column group statistics.F. Improve plan accuracy by persisting both compilation and execution statistics in the SYSAUX tablespace.

4.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.

更多“Which three are the valid statements in relation to SQL plan”相关问题

  • 第1题：

    Which three features work together, to allow a SQL statement to have different cursors for the samestatement based on different selectivity ranges?()

    A. Bind Variable Peeking

    B. SQL Plan Baselines

    C. Adaptive Cursor Sharing

    D. Bind variable used in a SQL statement

    E. Literals in a SQL statement


    参考答案：A, C, E

  • 第2题：

    Which of the following objects contains control structures that are considered the bound form of SQL statements?（）

    • A、UDT
    • B、Trigger
    • C、Package
    • D、Access plan

    正确答案:C

  • 第3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4题：

    Which three are the valid statements in relation to SQL plan baselines?（）

    • A、The plans can be manually loaded to the SQL plan baseline.
    • B、The plans in the SQL plan baseline are verified and accepted plans.
    • C、The plans generated for every SQL statement are stored in the SQL plan baseline by default.
    • D、The plan baselines are stored temporarily in the memory as long as the database instance is running.
    • E、  For the SQL plan baselines to be accessible to the optimizer, the SYSAUX tablespace must be online.

    正确答案:A,B,E

  • 第5题：

    Which three statements are valid SDM configuration wizards？ （）

    • A、NAT
    • B、VPN
    • C、STP
    • D、Security Audit

    正确答案:A,B,D

  • 第6题：

    Examine the following statement that is used to modify the constraint on the SALES table： SQL> ALTER TABLE SALES MODIFY CONSTRAINT pk DISABLE VALIDATE； Which three statements are true regarding the above command（）

    • A、The constraint remains valid.
    • B、The index on the constraint is dropped.
    • C、It allows the loading of data into the table using SQL*Loader.
    • D、New data conforms to the constraint， but existing data is not checked
    • E、It allows the data manipulation on the table using INSERT/UPDATE/DELETE SQL statements.

    正确答案:A,B,C

  • 第7题：

    多选题
    Examine the following statement that is used to modify the primary key constraint on the SALES table： SQL> ALTER TABLE SALES MODIFY CONSTRAINT pk DISABLE VALIDATE； Which three statements aretrue regarding the above command（）
    A

    The constraint remains valid.

    B

    The index on the constraint is dropped.

    C

    It allows the loading of data into the table using SQL *Loader.

    D

    New data conforms to the constraint， but existing data is not checked.

    E

    It allows the data manipulation on the table using INSERT/UPDATE/DELETE SQL statements.


    正确答案： C,A
    解析： 暂无解析

  • 第8题：

    多选题
    Which three features work together, to allow a SQL statement to have different cursors for the samestatement based on different selectivity ranges?（）
    A

    Bind Variable Peeking

    B

    SQL Plan Baselines

    C

    Adaptive Cursor Sharing

    D

    Bind variable used in a SQL statement

    E

    Literals in a SQL statement


    正确答案： C,D
    解析： 暂无解析

  • 第9题：

    多选题
    Which three statements are true about adaptive SQL plan management?（）
    A

    It automatically performs verification or evolves non-accepted plans, in COMPREHENSIVE mode when they perform better than existing accepted plans.

    B

    The optimizer always uses the fixed plan, if the fixed plan exists in the plan baseline.

    C

    It adds new, bettor plans automatically as fixed plans to the baseline.

    D

    The non-accepted plans are automatically accepted and become usable by the optimizer if they perform better than the existing accepted plans.

    E

    The non-accepted plans in a SQL plan baseline are automatically evolved, in COMPREHENSIVE mode, during the nightly maintenance window and a persistent verification report is generated.


    正确答案： C,D
    解析： 暂无解析

  • 第10题：

    多选题
    While deploying a new application module, the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced. Which two statements describe the consequences?（）
    A

    The plan baselines can be evolved over time to produce better performance.

    B

    The newly generated plans are directly placed into the SQL plan baseline without being verified.

    C

    The new SQL statements initially run with the plans that are known to produce good performance under standard test configuration.

    D

    The optimizer does not generate new plans for the SQL statements for which the SQL plan baseline has been imported.


    正确答案： C,A
    解析： 暂无解析

  • 第11题：

    多选题
    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： E,A
    解析： 暂无解析

  • 第12题：

    多选题
    Which three are the valid statements in relation to SQL plan baselines?（）
    A

    The plans can be manually loaded to the SQL plan baseline.

    B

    The plans in the SQL plan baseline are verified and accepted plans.

    C

    The plans generated for every SQL statement are stored in the SQL plan baseline by default.

    D

    The plan baselines are stored temporarily in the memory as long as the database instance is running.

    E

      For the SQL plan baselines to be accessible to the optimizer, the SYSAUX tablespace must be online.


    正确答案： A,E
    解析： 暂无解析

  • 第13题：

    Which of the following objects contains control structures that are considered the bound form of SQL statements?()

    A.UDT

    B.Trigger

    C.Package

    D.Access plan


    参考答案：C

  • 第14题：

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

    • 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15题：

    Which three features work together, to allow a SQL statement to have different cursors for the samestatement based on different selectivity ranges?（）

    • A、Bind Variable Peeking
    • B、SQL Plan Baselines
    • C、Adaptive Cursor Sharing
    • D、Bind variable used in a SQL statement
    • E、Literals in a SQL statement

    正确答案:A,C,E

  • 第16题：

    While deploying a new application module, the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced. Which two statements describe the consequences?（）

    • A、The plan baselines can be evolved over time to produce better performance.
    • B、The newly generated plans are directly placed into the SQL plan baseline without being verified.
    • C、The new SQL statements initially run with the plans that are known to produce good performance under standard test configuration.
    • D、The optimizer does not generate new plans for the SQL statements for which the SQL plan baseline has been imported.

    正确答案:A,C

  • 第17题：

    Which three statements are true about adaptive SQL plan management?（）

    • A、It automatically performs verification or evolves non-accepted plans, in COMPREHENSIVE mode when they perform better than existing accepted plans.
    • B、The optimizer always uses the fixed plan, if the fixed plan exists in the plan baseline.
    • C、It adds new, bettor plans automatically as fixed plans to the baseline.
    • D、The non-accepted plans are automatically accepted and become usable by the optimizer if they perform better than the existing accepted plans.
    • E、The non-accepted plans in a SQL plan baseline are automatically evolved, in COMPREHENSIVE mode, during the nightly maintenance window and a persistent verification report is generated.

    正确答案:A,D,E

  • 第18题：

    多选题
    Which two statements about the SQL Management Base (SMB) are true?（）
    A

    It contains only SQL profiles generated by SQL Tuning Advisor.

    B

    It stores plans generated by the optimizer using a stored outline.

    C

    It is part of the data dictionary and stored in the SYSAUX tablespace.

    D

    It is part of the data dictionary and stored in the SYSTEM tablespace.

    E

    It contains the statement log, the plan history, plan baselines, and SQL profiles.


    正确答案： A,B
    解析： 暂无解析

  • 第19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20题：

    多选题
    Examine the following statement that is used to modify the constraint on the SALES table： SQL> ALTER TABLE SALES MODIFY CONSTRAINT pk DISABLE VALIDATE； Which three statements are true regarding the above command（）
    A

    The constraint remains valid.

    B

    The index on the constraint is dropped.

    C

    It allows the loading of data into the table using SQL*Loader.

    D

    New data conforms to the constraint， but existing data is not checked

    E

    It allows the data manipulation on the table using INSERT/UPDATE/DELETE SQL statements.


    正确答案： E,B
    解析： 暂无解析

  • 第21题：

    多选题
    Which three statements are true about SQL plan directives?（）
    A

    They are tied to a specific statement or SQL id.

    B

    They instruct the maintenance job to collect missing statistics or perform dynamic sampling to generate a more optimal plan.

    C

    They are used to gather only missing statistics.

    D

    They are created for a query expression where statistics are missing or the cardinality estimates by the optimizer are incorrect.

    E

    They instruct the optimizer to create only column group statistics.

    F

    Improve plan accuracy by persisting both compilation and execution statistics in the SYSAUX tablespace.


    正确答案： B,D,E
    解析： 暂无解析

  • 第22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23题：

    多选题
    Which three statements about performance analysis by SQL Performance Analyzer are true? （）
    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
    解析： 暂无解析

  • 第24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

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