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IBM Db2 11.1 Certification Guide
IBM Db2 11.1 Certification Guide

IBM Db2 11.1 Certification Guide: Explore techniques to master database programming and administration tasks in IBM Db2

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IBM Db2 11.1 Certification Guide

Db2 Server Management

This chapter covers the steps to configure and manage Db2 servers, instances, and databases. You will learn how to create and efficiently manage the database storage groups. You will also learn how to use many of the Db2 autonomic computing features to improve database availability and performance. You will learn how to use the Db2 workload manager (WLM) and its functionalities to efficiently meet the service-level agreements in the environment. By the end of the chapter, you will also be able to use the data server manager (DSM) to administer, monitor, and manage the Db2 database server. After the completion of this chapter, you will be able to demonstrate the ability to:

  • Create and manage Db2 instances and databases
  • View and modify the Db2 registry variables
  • View and modify the Db2 database manager configuration parameters
  • View and modify the Db2 database...

Working with Db2 instances

A Db2 instance is an environment responsible for managing system resources and the databases that fall under their control. Basically, an instance is made up of a set of processes, threads, and memory areas. The following diagram illustrates the relationship between a Db2 server, its instances, and its associated databases:

Relationship between server, instances, and databases

The server is at the highest level in the hierarchy, and you can have multiple Db2 versions installed on a given server. It is recommended that you check the system requirements for IBM Db2 for Linux, Unix, and Windows installations at https://www-01.ibm.com/support/docview.wss?uid=swg27038033.

Instances are second in the hierarchy and are responsible for managing the system resources required to run the database. You can create multiple instances on a server, providing a unique...

Configuring the Db2 system environment

The Db2 database environment contains a number of operating system environment variables and Db2-specific profile registry variables that are used to manage, monitor, and control the behavior of the Db2 system.

Environment variables are set at the operating system level using standard operating system commands, such as set on a Windows operating system and export on a UNIX operating system. Examples are shown here:

       set DB2INSTANCE=db2inst1 [On Windows]
       export DB2INSTANCE=db2inst1 [On UNIX]

The Db2 profile registry settings are categorized as:

  • Db2 global-level profile registry: All server-wide environment variable settings reside in this registry, and these settings are applicable to all of the instances that pertain to a particular version of Db2.
  • Db2 instance-level profile registry: The environment variable settings for a...

DB2 autonomic computing features

In today's dynamic world, we need databases that are self-configurable and self-optimizable, based on changes in workload characteristics. Db2 comes with a rich set of autonomic computing features to appropriately sense and respond to many situations, and to optimize the database for the best possible performance and use of available resources.

The following table, provides a summary of Db2 autonomic computing features, and a short description of each:

Autonomic Feature

Description

Self-tuning memory

Simplifies the memory configuration management across various configuration parameters and buffer pools.

Automatic storage

Simplifies storage management across all of the table spaces within the database. The database manager takes responsibility for creating and managing (expanding/shrinking) the containers, as and when required...

A word about Db2 workload manager (WLM)

The Db2 WLM is a feature that can help identify, manage, monitor, and control the database workload, to better reflect the organization and priorities of your business.

The WLM environment can be designed using the following four stages:

  1. Definition of the business goals: It is necessary to understand the overall business goal you are trying to achieve for this system. For example, you may want to limit certain business processes to no more than 10% of system resources, while allowing a few critical business processes to utilize up to 80% of the resources.
  2. Identification of the work entering the database server: Identification of the activities, in detail, for each of the business goals identified in step 1. For example, for critical business processes, identify the application user name or authorization ID that submits the query.
  3. Management...

A word about IBM Data Server Manager (DSM)

The IBM Data Server Manager is an integrated database management tool platform for Db2 on Linux, UNIX, and Windows, and is built based on four key features:

  • Identify:
    • Receive early notifications of problems before they impact the service
    • Quickly isolate problems across the database, network, and application layers
    • Get visibility into problems by workload, to prioritize response
  • Diagnose:
    • Follow the well-proven guided workflows to diagnose
    • Provide a complete view of data, from real time to any specific time in the past
    • Dive deeply into root causes, with detailed drill-down capabilities
    • Use built-in integration to leverage data from other IBM solutions
  • Solve:
    • Receive easy-to-understand, actionable recommendations for problem resolution
    • Tune entire workloads to balance costs across query and insert actions
  • Prevent:
    • Capture all...

Summary

The objective of this chapter was to acquaint you with the following:

  • The Db2 instance-specific commands, such as create, list, update, and drop
  • The Db2 registry and operating system environment variables
  • The Db2 instance and database configuration parameters and commands
  • The Db2 autonomic computing features, and associated application or business benefits with STMM and automatic storage
  • An introduction to the WLM feature and associated objects
  • An introduction to IBM Data Server Manager and its capabilities

Practice questions

  • Question 1: Which command can be used to display only the instance level registry settings for an instance db2inst1?
    1. db2set -all db2inst1
    2. db2set -i db2inst1
    3. db2set -lr
    4. db2val
  • Question 2: Which of the following commands can be used to retrieve CURRENT and PENDING values of database manager configuration parameters for the instance db2inst1? (Choose two.)
    1. db2look -dbmcfg
    2. db2 "ATTACH TO db2inst1"; db2 "GET DBM CFG SHOW DETAIL"
    3. db2 "GET DBM CFG SHOW DETAIL"
    4. db2pd -dbmcfg
    5. db2greg
  • Question 3: Which of the following table functions displays the registry setting?
    1. MON_GET_DATABASE ()
    2. MON_GET_INSTANCE ()
    3. ENV_GET_REG_VARIABLES ()
    4. MON_GET_UTILITY()
  • Question 4: Which of the following parameters contributes to DATABASE_MEMORY usage? (Choose two.)
    1. dbheap
    2. stmtheap
    3. applheapsz
    4. appl_memory
    5. util_heap_sz
  • Question 5: What is the order...

Solutions

  • Question 1:
    The correct answer is (2). Option (3) displays all of the supported registry variables. Option (4) is a Db2 copy validation command, and option (1) is invalid.
  • Question 2:
    The correct answers are (2) and (4). Option (3) needs an instance attachment before running the SHOW DETAIL clause of the GET DBM CFG command. Option (5) is a global registry display command. Option (1) is invalid.
  • Question 3:
    The correct answer is (3). Options (1), (2), and (4) are monitoring table functions, and will be discussed in the monitoring chapter.
  • Question 4:
    The correct answers are (1) and (5). The parameter database_memory specifies the amount of shared memory that is reserved for the database shared memory region. When you set this parameter to AUTOMATIC, the initial memory requirement is calculated based on the underlying configuration settings:
    • Buffer pools: This specifies...
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Key benefits

  • •Prepare yourself for the IBM C2090-600 certification exam
  • •Cover over 50 Db2 procedures including database design, performance, and security
  • •Work through over 150 Q&As to gain confidence on each topic

Description

IBM Db2 is a relational database management system (RDBMS) that helps you store, analyze, and retrieve data efficiently. This comprehensive book is designed to help you master all aspects of IBM Db2 database administration and prepare you to take and pass IBM's Certification Exams C2090-600. Building on years of extensive experience, the authors take you through all areas covered by the test. The book delves deep into each certification topic: Db2 server management, physical design, business rules implementation, activity monitoring, utilities, high availability, and security. IBM Db2 11.1 Certification Guide provides you with more than 150 practice questions and answers, simulating real certification examination questions. Each chapter includes an extensive set of practice questions along with carefully explained answers. This book will not just prepare you for the C2090-600 exam but also help you troubleshoot day-to-day database administration challenges.

Who is this book for?

The IBM Db2 11.1 Certification Guide is an excellent choice for database administrators, architects, and application developers who are keen to obtain certification in Db2. Basic understanding of Db2 is expected in order to get the most out of this guide.

What you will learn

  • • Configure and manage Db2 servers, instances, and databases
  • • Implement Db2 BLU Acceleration and a DB2 pureScale environment
  • • Create, manage, and alter Db2 database objects
  • • Use the partitioning capabilities available within Db2
  • • Enforce constraint checking with the SET INTEGRITY command
  • • Utilize the Db2 problem determination (db2pd) and dsmtop tools
  • • Configure and manage HADR
  • • Understand how to encrypt data in transit and at rest
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Publication date, Length, Edition, Language, ISBN-13
Publication date : Jun 28, 2018
Length: 478 pages
Edition : 1st
Language : English
ISBN-13 : 9781788626910
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ISBN-13 : 9781788626910
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Table of Contents

9 Chapters
Introduction to the Db2 Certification Path Chevron down icon Chevron up icon
Db2 Server Management Chevron down icon Chevron up icon
Physical Design Chevron down icon Chevron up icon
Implementing Business Rules Chevron down icon Chevron up icon
Monitoring Db2 Activity Chevron down icon Chevron up icon
Db2 Utilities Chevron down icon Chevron up icon
High Availability Chevron down icon Chevron up icon
Db2 Security Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Half star icon Empty star icon Empty star icon 2.8
(5 Ratings)
5 star 20%
4 star 20%
3 star 20%
2 star 0%
1 star 40%
Manuel Rey Jan 30, 2019
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Buen libro para iniciar procesos de certificación en ibm db2
Amazon Verified review Amazon
Ruby Stepansky Aug 03, 2018
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
I have enjoyed reading the book so far. I have found some typos and some issues with some of the questions and answers at the end of the chapters. In general, I'm using thing book as preparatory reading for my Db2 LUW 11.1 certification. I anticipate that it will assist me, aside from my hands-on Db2 DBA work.
Amazon Verified review Amazon
JV May 03, 2019
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
Si lo compro en papel, al menos lo espero a color. Hoja impresa en blanco y negro.
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dhineesha Jul 01, 2021
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
I bought this book it's waste of timeif you want to pass the exam don't buy this bookstrongly recommending not to buy this bookyou will get dumps from online so don't even have a thought of buying this book
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Arindam Apr 19, 2020
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