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DB2 11 for z/OS Application Performance and Tuning


Inhalt des Trainings

This Application Performance and Tuning course is designed to teach the students how to prevent application performance problems and to improve the performance of existing applications. Students will learn about indexes, table design, locking, and other issues relevant to application performance. This course includes paper exercises and machine exercises designed to reinforce the lecture content.

After completing this course, students will be able to:
  • Design better indexes
  • Determine how to live with the optimizer (avoid pitfalls, help when necessary)
  • Avoid locking problems
  • Use accounting trace information to find significant performance problems in an operational application


    This intermediate course is designed for DB2 for z/OS application developers, DB2 for z/OS DBAs, and anyone else who is responsible for application performance and tuning in a DB2 for z/OS environment.


  • Familiarity with DB2 for z/OS application programming and SQL.


  1. Introduction to Application Performance and Tuning
  2. List common causes of application performance problems
  3. Evalutate different approaches for detecting the problems
  4. Describe possible solutions
  5. Performance Analysis Tools
  6. Understand components of local response time (LRT)
  7. Identify touch random (TR), touch sequential (TS), and fetch (F) time costs
  8. Utilize VQUBE3 to estimate local response time (LRT)
  9. Locate necessary time values in an accounting trace report
  10. Draw and interpret a bubble chart
  11. Towards Better Indexes
  12. Understand DB2 index structure and usage
  13. Evalute the cost of creating a new index or modifying an existing index
  14. Design the best possible index for a single table query
  15. Describe prefetch operations and multi-index access
  16. Multiple Table Access
  17. Identify various join methods and join types
  18. Predict table join order
  19. Design the best indexes for joining tables
  20. Optimmize correlated and non-correlated subqueries
  21. Utilize UNION, INTERSECT, and EXCEPT operations
  22. Towards Better Tables
  23. Evaluate clustering alternatives
  24. Understand basic rules of nomalization
  25. Consider conditions for denormalization
  26. Define materialized query tables
  27. Learning to Live with the Optimizer
  28. Describe the limitations related to dangerous predicates
  29. Identify situations when the optimizer needs help with filter factor estimates
  30. Massive Batch
  31. Detect performance problems with massive batch jobs
  32. Make batch jobs run faster
  33. Locking Issues
  34. Describe DB2 serialization
  35. Understand transaction locking
  36. Avoid locking problems in application design
  37. Course Summary
  38. Summarize the topics covered in this course



Ab  4.265,-*

*Preis pro Teilnehmer*in ohne Zusatzoptionen, exkl. MwSt.

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