Course outline

DB2 11 for z/OS Application Performance and Tuning

Categories: Guaranteed To Run™, IBM

GK IBM LS Partner

Duration: 5 Days

In this course, you will learn how to prevent application performance problems and improve the performance of existing applications. You 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.

Note: While class exercises are performed within a DB2 11 for z/OS environment, our expert instructors can provide guidance on all versions and their differences.

  • 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

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

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.

  • Introduction to Application Performance and Tuning
  • List common causes of application performance problems
  • Evalutate different approaches for detecting the problems
  • Describe possible solutions
  • Performance Analysis Tools
  • Understand components of local response time (LRT)
  • Identify touch random (TR), touch sequential (TS), and fetch (F) time costs
  • Utilize VQUBE3 to estimate local response time (LRT)
  • Locate necessary time values in an accounting trace report
  • Draw and interpret a bubble chart
  • Towards Better Indexes
  • Understand DB2 index structure and usage
  • Evalute the cost of creating a new index or modifying an existing index
  • Design the best possible index for a single table query
  • Describe prefetch operations and multi-index access
  • Multiple Table Access
  • Identify various join methods and join types
  • Predict table join order
  • Design the best indexes for joining tables
  • Optimmize correlated and non-correlated subqueries
  • Utilize UNION, INTERSECT, and EXCEPT operations
  • Towards Better Tables
  • Evaluate clustering alternatives
  • Understand basic rules of nomalization
  • Consider conditions for denormalization
  • Define materialized query tables
  • Learning to Live with the Optimizer
  • Describe the limitations related to dangerous predicates
  • Identify situations when the optimizer needs help with filter factor estimates
  • Massive Batch
  • Detect performance problems with massive batch jobs
  • Make batch jobs run faster
  • Locking Issues
  • Describe DB2 serialization
  • Understand transaction locking
  • Avoid locking problems in application design
  • Course Summary
  • Summarize the topics covered in this course
This course is delivered by an authorized IBM Global Training Provider.
  • Guaranteed to Run™. This ensures you will attend the instructor led class or live online class you want as scheduled without any disruptive cancellations*. You book the training you need, get back to focusing on your job and are sure your training requirements will be met saving time, money and ensuring peace of mind.
  • This schedule icon the schedule indicates that this date/time will be conducted as Instructor Led Training (ILT) or a Virtual Instructor Led Training (VILT) depending on the indicated class availablity.
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