多选题Which three statements about performance analysis by SQL Performance Analyzer are true? （）AIt detects changes in SQL execution plans.BIt produces results that can be used to create the SQL plan baseline.CThe importance of SQL statements is based on the

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多选题

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

It detects changes in SQL execution plans.

It produces results that can be used to create the SQL plan baseline.

The importance of SQL statements is based on the size of the objects accessed.

It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.

It shows only the overall impact on workload and not the net SQL impact on workload.

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第1题

Which of these appropriately describes the results of a manual SQL Tuning Advisor task?（）A、A list of SQL statements and recommendations for tuningB、A list of SQL statements that have been tuned by the Advisor, with before and after metricsC、Graphs showing the actual performance improvement made by the Advisor after it implemented the recommended changesD、All of the above

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第2题

Which two statements are true regarding the SQL Repair Advisor？（） A、 The SQL Repair Advisor can be invoked to tune the performance of the regressed SQL statements.B、 The SQL Repair Advisor can be invoked even when the incident is not active for a SQL statement crash.C、 The SQL Repair Advisor is invoked by the Health Monitor when it encounters the problematic SQL statement.D、 The DBA can invoke the SQL Repair Advisor when he or she receives an alert generated when a SQL statement crashes and an incident is created in the ADR.

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第3题

You are maintaining the PROD database of NetFx Corporation. You set the value of the SQL_TRACE parameter to TRUE. What will be the impact of this setting？（） A、 The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the USER_DUMP_DEST directory.B、 The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the USER_DUMP_DEST directory.C、 The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the BACKGROUND_DUMP_DEST directory.D、 The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the BACKGROUND_DUMP_DEST directory.

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第4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.

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第5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.

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第6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.

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第7题

Identify three scenarios in which you would recommend the use of SQL Performance Analyzer to analyzeimpact on the performance of SQL statements.（）A、Change in the Oracle Database versionB、Change in your network infrastructureC、Change in the hardware configuration of the database serverD、Migration of database storage from non-ASM to ASM storageE、Database and operating system upgrade

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Which three statements about performance analysis by SQL Per

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