£2,950.00

Price for this course

5 HOURS

Duration

Classroom IBM

Delivery

Available dates


Mon01Feb 21 TO Fri05Feb 21

Where

Tech Data ILO UK
Connection details will be communicated separately
Instructor Led
Online

Code

TR-664532
Mon26Apr 21 TO Fri30Apr 21

Where

Tech Data ILO UK
Connection details will be communicated separately
Instructor Led
Online

Code

TR-664533

Overview

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.

Audience

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.

Prerequisites

You should have:

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

Objective

  • 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

Course Outline

  • 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


FAQs

What do I need to bring with me to my public class?

All required learning materials and equipment are provided in the classroom.

 

 

 

 

When do public training course fees have to be paid?

For public training classes payment must be received no later than three business days prior to the first day of class in order to remain in the class and confirm your seat. Failure to provide payment by this date may result in removal from the class, and/or late cancellation fees applied. You can submit payment in the form of a Purchase Order or credit card.

 

 

 

 

On-site (private) Course Pricing:

To find out more about On-site training e-mail us at enablement@agilesolutions.co.uk or call one of our offices.

 

 

 

 

What is the cancellation policy?

Requests for cancellations or date transfers need to be received at least ten (10) business days prior to the event start date in order to receive a full refund. If a cancellation or reschedule request is received less than ten (10) business days before the start date, the penalty of 100% of the cost of the course will be applied, resulting in no amount of the fee being refunded. Refunds will not be allowed for “no-shows” in our public training or IVA courses. This cancellation policy is strictly enforced.

 

 

 

 

What happens if Agile Solutions needs to cancel or reschedule a course?

Agile Solutions reserves the right to cancel events for any reason at any time. Cancellation liability for Agile Solutions, if Agile Solutions cancels the course, is limited to the return of course payment ONLY. Agile Solutions will not reimburse registrants for any other costs including but not limited to any travel cancellation fees or penalties, including airfare and hotel costs. PLEASE NOTE: If your registration status is either “Approved”, or “Pending Payment” you have not been confirmed for the class and it is recommended that you do not make any travel arrangements until you have received a confirmation e-mail letting you know the class and registration is confirmed.

 

 

 

 

How will I know if my course has been rescheduled?

Agile Solutions reserves the right to reschedule or cancel a course due to low enrollment or if necessitated by other circumstances. Agile Solutions will contact you via e-mail or phone to inform you of the change of schedule. Once you have been notified you may reschedule or receive a full credit. Agile Solutions shall not be liable for any other costs including but not limited to any non-refundable travel arrangements if a course is rescheduled or cancelled.