多选题When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this?（）AIt produces less accurate results of the comparison analysis.BIt automaticall

第1题：

第2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3题：

第4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.

第5题：

You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing.  What information is captured as part of this process？（）

• A、 the SQL text
• B、 the execution plan
• C、 the execution context
• D、 the execution frequency
• E、 the system change number （SCN）

第6题：

When executing a SQL workload，you choose to generate execution plans only， without collecting execution statistics.  Which two statements describe the implications of this？（）

• A、 It produces less accurate results of the comparison analysis.
• B、 It automatically calls the SQL Tuning Advisor for recommendations.
• C、 It shortens the time of execution and reduces the impact on system resources.
• D、 Only the changes in the execution plan，and not performance regression，are detected.

第7题：

When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this? （）(Choose two.)

• A、It produces less accurate results of the comparison analysis.
• B、It automatically calls the SQL Tuning Advisor for recommendations.
• C、It shortens the time of execution and reduces the impact on system resources.
• D、Only the changes in the execution plan, and not performance regression, are detected.

第8题：

第9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10题：

When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this?（）

• A、It produces less accurate results of the comparison analysis.
• B、It automatically calls the SQL Tuning Advisor for recommendations.
• C、It shortens the time of execution and reduces the impact on system resources.
• D、Only the changes in the execution plan, and not performance regression, are detected.