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.
Explanation:
Introduction to SQL Performance Analyzer (link)
SQL Performance Analyzer compares the performance of SQL statements before and after
the change and produces a report identifying any changes in execution plans or
performance of the SQL statements.
Fixing Regressed SQL Statements
If the performance analysis performed by SQL Performance Analyzer reveals regressed
SQL statements, then you can make changes to remedy the problem. For example, you can
fix regressed SQL by running SQL Tuning Advisor or using SQL plan baselines. You can
then repeat the process of executing the SQL statements and comparing its performance to
the first execution. Repeat these steps until you are satisfied with the outcome of the
analysis