Oracle OCP 9i to 11g SQL Performance Analyzer

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Author:
Tralala
ID:
206661
Filename:
Oracle OCP 9i to 11g SQL Performance Analyzer
Updated:
2014-05-02 05:23:53
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Oracle OCP 9i 11g SQL Performance Analyzer
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Oracle OCP 9i to 11g SQL Performance Analyzer
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  1. What does SQL Performance Analyzer do?
    Allows an accurate forecast of the potential impact of system changes on SQL performance.
  2. What tool allows a system to be tuned before changes are made?
    SQL Performance Analyzer
  3. What does the SQL Performance Analyzer produce?
    A report showing net impact of changes in the workload performance and performance divergence of each SQL statement
  4. Where is SQL Performance Analyzer run?
    On a production database or a test database that closely resembles production.
  5. Where do Oracle recommended SQL Performance Analyzer is run?
    On a test system
  6. What is the difference between SQL Performance Analyzer and SQL Tuning advisor?
    • SQL Performance Analyzer is designed to determine the impact of changes on a system
    • SQL Tuning Advisor help tune SQL on a currently running system.
  7. From where does SQL Performance Analyzer source SQL statements?
    From a production system.
  8. How are captured SQL statements from a database stored?
    As a tuning set
  9. Define a tuning set?
    A database object that includes one or more SQL statements with execution stats and execution context.
  10. What does DBA_ADVISOR_TASKS show?
    Displays descriptive information about the SQL Performance Analyzer task that was created.
  11. What does DBA_ADVISOR_EXECUTIONS show?
    Displays information about task executions.
  12. What does DBA_ADVISOR_SQLSTATS show?
    Displays a list of all SQL compilations and execution statistics.
  13. What does V$ADVISOR_PROGRESS show?
    Displays the operation progress of SQL Performance Analyzer.
  14. What are the steps in analyzing performance changes?
    • 1. Capture Workload
    • 2. Create a performance analyzer task
    • 3. Build a pre-change SQL trial
    • 4. Perform system changes
    • 5. Build a post-change SQL trial
    • 6. Compare results and tune the SQL that requires tuning
  15. Which package is used to manage tuning sets?
    DBMS_SQLTUNE
  16. How does one create a tuning set?
    DBMS_SQLTUNE.CREATE_SQLSET
  17. How does one populate a tuning set?
    DBMS_SQLTUNE.LOAD_SQLSET
  18. What creates a staging table to allow import and export of tuning sets?
    DBMS_SQLTUNE.CREATE_SGTAB_SQLSE
  19. Which package contains procedures and functions specific to the SQL Performance Analyzer
    DBMS_SQLPA
  20. Which procedure is used to create analysis task?
    DBMS_SQLPA.CREATE_ANALYSIS_TASK
  21. Which procedure executes a analysis task?
    DBMS_SQLPA.EXECUTE_ANALYSIS_TASK
  22. Which procedure displays the results of an analysis task?
    DBMS_SQLPA.REPORT_ANALYSIS_TASK
  23. What does DBA_ADVISOR_FINDINGS show?
    Displays the SQL Performance Analyzer findings.
  24. What does DBA_ADVISOR_SQLPLANS show?
    Displays a list of all execution plans.

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