单选题Examine the following PL/SQL block：   DECLARE   my_plans pls_integer； BEGIN  my_plans ：= DBMS_SPM.LOAD_PLANS_FROM_CURSOR_CACHE （sql_id=> ？9twu5t2dn5xd？； END；   Which statement is true about the plan being loaded into the SQL plan baseline by the above 

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第2题：

To make audit information more productive， the DBA executes the following command before startingan audit operation：  SQL> ALTER SYSTEM SET AUDIT_TRAIL=DB，EXTENDED SCOPE=SPFILE；  Which statement is true regarding the audit record generated when auditing starts after restarting thedatabase（）

• A、It contains only the plan for the SQL statement executed by the user.
• B、It contains the SQL text executed by the user and the bind variables used with it.
• C、It contains the plan and statistics associated with the SQL statement executed by the user.
• D、It contains the plan for the SQL statement executed by the user and the bind variables used with it.

第3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.

第4题：

Examine the following PL/SQL block：   DECLARE   my_plans pls_integer； BEGIN  my_plans ：= DBMS_SPM.LOAD_PLANS_FROM_CURSOR_CACHE （sql_id=> ？9twu5t2dn5xd？； END；   Which statement is true about the plan being loaded into the SQL plan baseline by the above command？（）

• A、 It is loaded with the FIXED status.
• B、 It is loaded with the ACCEPTED status.
• C、 It is not loaded with the ENABLED status.
• D、 It is not loaded with the ACCEPTED status.

第5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.

第6题：

Which statement describes the effect of the execution of the above PL/SQL block?（）

• A、The plan baselines are verified with the SQL profiles.
• B、All fixed plan baselines are converted into nonfixed plan baselines.
• C、All the nonaccepted SQL profiles are accepted into the plan baseline.
• D、The nonaccepted plans in the SQL Management Base are verified with the existing plan baselines.

第7题：

Examine the following PL/SQL block：   SET SERVEROUTPUT ON SET LONG 10000 ECLARE report clob；  BEGIN report ：= DBMS_SPM.EVOLVE_SQL_PLAN_BASELINE（）； DBMS_OUTPUT.PUT_LINE（report）； END；   Which statement describes the effect of the execution of the above PL/SQL block？（）  

• A、 The plan baselines are verified with the SQL profiles.
• B、 All fixed plan baselines are converted into nonfixed plan baselines.
• C、 All the nonaccepted SQL profiles are accepted into the plan baseline.
• D、 The nonaccepted plans in the SQL Management Base are verified with the existing plan baselines.

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第14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.

第15题：

Which two statements about the SQL Management Base (SMB) are true? （）(Choose two.)

• 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.

第16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.

第17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

第18题：

The OPTIMIZER_USE_PLAN_BASELINES parameter is set to TRUE. The optimizer generates a plan for a SQL statement but does not find a matching plan in the SQL plan baseline. Which two operations are performed by the optimizer in this scenario?（）

• A、The optimizer adds the new plan to the plan history.
• B、The optimizer selects the new plan for the execution of the SQL statement.
• C、The optimizer adds the new plan to the SQL plan baseline as an accepted plan.
• D、The optimizer adds the new plan to the SQL plan baseline but not in the ENABLED state.
• E、The optimizer costs each of the accepted plans in the SQL plan baseline and picks the one with the lowest cost.

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