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DB2 9 Database

Administration Workshop forLinux(Course code CL2X2)

Student ExercisesERC 10.3

IBM certified course material

5.3

over

Front cover


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Student Exercises

July 2010 edition

The information contained in this document has not been submitted to any formal IBM test and is distributed on an as is basis withoutany warranty either express or implied. The use of this information or the implementation of any of these techniques is a customerresponsibility and depends on the customers ability to evaluate and integrate them into the customers operational environment. Whileeach item may have been reviewed by IBM for accuracy in a specific situation, there is no guarantee that the same or similar results willresult elsewhere. Customers attempting to adapt these techniques to their own environments do so at their own risk.

Copyright International Business Machines Corporation 1999, 2010. All rights reserved.

This document may not be reproduced in whole or in part without the prior written permission of IBM.

Note to U.S. Government Users Documentation related to restricted rights Use, duplication or disclosure is subject to restrictionsset forth in GSA ADP Schedule Contract with IBM Corp.

Trademarks

IBM is a registered trademark of International Business Machines Corporation.

The following are trademarks of International Business Machines Corporation in the United

States, or other countries, or both:

VMware and the VMware "boxes" logo and design, Virtual SMP and VMotion are

registered trademarks or trademarks (the "Marks") of VMware, Inc. in the United Statesand/or other jurisdictions.

Intel and Pentium are trademarks or registered trademarks of Intel Corporation or its

subsidiaries in the United States and other countries.

Java and all Java-based trademarks and logos are trademarks of Sun Microsystems, Inc.in the United States, other countries, or both.

Linux is a registered trademark of Linus Torvalds in the United States, other countries, or

both.

Microsoft, Windows, Windows NT and Windows Vista are trademarks of MicrosoftCorporation in the United States, other countries, or both.

UNIX is a registered trademark of The Open Group in the United States and other

countries.

AMD, and combinations thereof, is a trademark of Advanced Micro Devices, Inc.

Other company, product, or service names may be trademarks or service marks of others.

AIX AIX 5L Approach

CICS ClearCase DB2

DB2 Connect DB2 Universal DatabaseDistributed RelationalDatabase Architecture

DRDA Express Informix

InfoSphere iSeries LotusScript

Lotus MQSeries Optim

OS/390 OS/400 pSeries

S/390 Symphony Tivoli

WebSphere z/OS zSeries

1-2-3


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5.3

OC

Course materials may not be reproduced in whole or in part

without the prior written permission of IBM.

Copyright IBM Corp. 1999, 2010 Contents iii

Contents

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Exercises description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Exercise 1. Starting your lab environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Starting the VMware image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Exercise 2. DB2 CLP usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Section 1: Exploring the CLP usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Section 2: Exploring the CLPPlus usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3Section 3: Looking at Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Exercise 3. Create an instance and explore the environment . . . . . . . . . . . . . . . . . 3-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Section 1: Creating the instance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Section 2: Checking your environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6Section 3: Exploring DB2 and Setting up Remote Connectivity . . . . . . . . . . . . . . . 3-8Section 4: Setup for Remaining Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Exercise 4. Creating databases and data placement . . . . . . . . . . . . . . . . . . . . . . . . 4-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Section 0: Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Section 1: Creating the database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Section 2: Creating Table Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11Script files used for lab4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Exercise 5. Create objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Section 0: Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2Section 1: Create Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3Section 2: Create Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9Section 3: Create Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12Section 4: Create Alias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14Section 5: Add Referential Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16Section 6: Add Check Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20Section 7: Create a Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22Section 8: Working with Temporary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24Section 9 (Optional): Working with XML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27Script files used for lab5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

Exercise 6. Moving data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2


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iv DB2 9 DB Admin Workshop for Linux Copyright IBM Corp. 1999, 2010

Section 0: Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2Section 1: Import Data in Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2Section 2: Create Exception Tables ARTISTS, ALBUMS, STOCK . . . . . . . . . . . .6-5Section 3: Backup Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6Section 4: Load Data with INSERT option into CONCERTS . . . . . . . . . . . . . . . . . .6-7Section 5: Load Data with REPLACE option into ARTISTS . . . . . . . . . . . . . . . . . . .6-9Section 6: Examining the SET INTEGRITY PENDING State . . . . . . . . . . . . . . . . .6-11

Section 7: Understanding CHECK CONSTRAINT Enforcement . . . . . . . . . . . . . .6-15Section 8: Understanding TRIGGER Enforcement . . . . . . . . . . . . . . . . . . . . . . . . .6-17Section 9: Using the db2look tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-19Section 10 (Optional): Working with LOB Data . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20Script files used for lab6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-24

Exercise 7. Backup and recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Section 0: Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2Section 1: Determining Log Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2

Section 2: Backup/Restore Support with Archive Logging . . . . . . . . . . . . . . . . . . . .7-7Section 3: Resetting the Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-15Script files used for lab7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-16

Exercise 8. Investigating DB2 locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

Section 0: Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3Section 1: Basic Lock Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4Section 2: Lock Timeouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-7Section 3: Deadlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-12Section 4: Resetting the Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14

Script files used for lab8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-15

Exercise 9. Problem determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Section 0: Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2Section 1: Collecting information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2Section 2: Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6Section 3: Reset DIAGLEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-8Script files used for lab9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-9

Exercise 10. Security (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1

Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2Section 0: Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-2Section 1: Default PUBLIC Privileges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-2Section 2: DB2 Authorities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-8Section 3: DB2 User and Group Privileges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-15Section 4: Database roles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-21Section 5: Resetting the Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-23Script files used for lab10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-24


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Copyright IBM Corp. 1999, 2010 Contents v

Appendix A. UNIX vi Editor command summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Appendix B. Application performance tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1Exercise instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Section 1: Access strategies and utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2Script files used for labappdxc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7


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vi DB2 9 DB Admin Workshop for Linux Copyright IBM Corp. 1999, 2010


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Copyright IBM Corp. 1999, 2010 Trademarks vii

5.4

MK Trademarks

The reader should recognize that the following terms, which appear in the content of this

training document, are official trademarks of IBM or other companies:

IBM and the IBM logo are registered trademarks of International Business Machines

Corporation.

The following are trademarks of International Business Machines Corporation, registered in

many jurisdictions worldwide:

Windows is a trademark of Microsoft Corporation in the United States, other countries, or

both.

Linux is a trademark of Linus Torvalds in the United States, other countries, or both.

Other company, product, or service names may be trademarks or service marks of others.

AIX AIX 5L Approach

CICS ClearCase DB2

DB2 Connect DB2 Universal DatabaseDistributed RelationalDatabase Architecture

DRDA Express Informix

InfoSphere iSeries LotusScript

Lotus MQSeries OptimOS/390 OS/400 pSeries

S/390 Symphony Tivoli

WebSphere z/OS zSeries

1-2-3


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viii DB2 9 DB Admin Workshop for Linux Copyright IBM Corp. 1999, 2010


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Copyright IBM Corp. 1999, 2010 Exercises description ix

4.0

ef Exercises description

The students will learn how to administer a Linux database server using either DB2's GUI

interface or a DB2 Command Window.

DO NOT CHANGE ANY OF YOUR PASSWORDS!Each exercise in this course is divided into sections as described below.

Objectives This section outlines the learning points of the exercise.

Reference Materials List of documents which you may find useful in performing theexercise.

Lab Exercise The step-by-step guide to the lab.

The exercise instructions include hints to help you perform the tasks requested or to

provide answers to the questions posed in the exercise. Where possible, both the Terminal

session and the GUI solutions are given.Optional Exercises This section gives you additional exercises to perform relating to the

unit of discussion. It is strictly optional and should be performed when you have completedthe required exercises. The required exercises pertain to the most pertinent information

provided in the unit. This section may help round out the hands-on experience for a relatedunit.

Table 0-1: Lab Guide Substitutions

Description Your Value Substitution in Lab GuideStudent User ID inst20

Roots Password dalvm3

Server hostname ibmclass

Administrative Server dasusr1

Admin Server Password ibm2blue

Initial User Name inst00

Initial User Password ibm2blue


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x DB2 9 DB Admin Workshop for Linux Copyright IBM Corp. 1999, 2010

Lab environment

Copyright IBM Corporation 2010

Artistsartno name classification bio picture

inx Pk CLOB BLOB

TS tsp02 tsp01 tsp03

Albums

itemno title artno

inx Pk Fk

TS tsp05 tsp04

Stock

itemno type price qty

inx Fk cc trigger

TS tsp06

Reorder

itemno timestamp

trigger trigger

tsp07

Check Constraint: cctype

Stock.type = D or C or R

Trigger: reorder

Stock.qty


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Copyright IBM Corp. 1999, 2010 Exercise 1. Starting your lab environment 1-1

4.0

empty Exercise 1. Starting your lab environment

What this exercise is about

This exercise covers the use of VMware Player. Your lab environment

is a virtual machine image, used with the VMware Player product or inthe case where you are attending the ILO (3L2X), you will use an eLab

environment to perform the exercises.

What you should be able to do

At the end of the exercise, you should be able to:

Find your DB2 VMware virtual machine image

Start your DB2 VMware virtual machine image using VMware

Player

Introduction

You will use a VMware virtual machine (VM) image to run exerciseswithin. The DB2 VMware VM lab image you will use is a Linux image,

in a single user environment.

This image contains the DB2 server used for the CL2X and 3L2Xcourses.


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1-2 DB2 9 DB Admin Workshop for Linux Copyright IBM Corp. 1999, 2010

Exercise instructions

Starting the VMware image

Note

If you are in the ILO class - 3L2X - then your instructor will inform you of how you can usean eLab environment for your exercises.

Note

Steps 1 through 3 are not used for the eLab environment.

The VMware VM (virtual machine) image you will be using is a Virtual Machine image of anoperating system, run within the native Windows operating system of your computer.

__ 1. Logon to your student workstation with the username and password supplied by

your instructor.

________________________________________________________________

__ 2. Start a Linux VMware VM image on your computer.

__ a. On your local computer, find the VMware Player icon and start it.

__ b. The VMware Player window opens, which is a browser. Navigate on the browserto the location of your VMware VM image (your instructor will inform you of the

location).

________________________________________________________________

__ c. Select the file with the .vmxextension, whose icon looks like this:

__ d. Click the Openbutton.

__ 3. This starts your Virtual Machine image. The image has preset parameters which willensure that the native OS will not be overtaxed for resources.

__ 4. Logon to the system within your VM image. Your username and password for thelocal Linux system is: inst00

ibm2blue

__ 5. Become familiar with the method of file handling and navigation for the system youare using.


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Copyright IBM Corp. 1999, 2010 Exercise 1. Starting your lab environment 1-3

4.0

emptyLinux

SUSE:Right-click the inst00s Home icon in the upper left of the screen, and

select Browse Folder. This opens a window similar to Windows Explorer that youcan use to work with files in the various directories. Double-click the Filesystem

icon.

__ 6. Maximize your VMware VM image by clicking the Maximizeicon on the upper rightof your image window.

__ 7. Leave your Virtual Machine image running while we continue the class.

End of exercise


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Copyright IBM Corp. 1999, 2010 Exercise 2. DB2 CLP usage 2-1

4.0

empty Exercise 2. DB2 CLP usage


This exercise will let you explore the CLP and DB2 GUIs, making you

familiar with them by using the DB2 default instance - inst00 - and theSAMPLE database.


At the end of the exercise, students should be able to:

Use the CLP

Use the different GUIs

Know the possibilities of the CLP and the GUIs

Introduction

Before class started, the DB2 product was installed on the Databaseserver that you are using. A Database Administration Server (DAS)

was also created and started. Also the default DB2 instance with theSAMPLE database was created. You will now be able to familiarize

yourself with the CLP and the GUIs.

Refer to Appendix Bfor the SAMPLE database model.

The general approach taken in the classroom for DB2 9 is to use aVMware VM image running on the same PC that you log into.

When you are using Linux commands, there might be slightdifferences depending on the versions of Linux (RedHat, SuSE, ...).


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Section 1: Exploring the CLP usage

Because you will use the default DB2 instance and the sample database, you must logon

with the appropriate userid and password to be able to perform all operations.

Note

You might have already completed Step 1 in Exercise 1.

__ 1. At the VMware Linux VM image, enter the username and password on the GUI loginscreen of the virtual machine (VM). If this VM has to be started, the instructor will

give you directions on how to do so.

Enter inst00as the UsernameEnter ibm2blueas the Password

(Your login and password might differ, depending on the classroom environment and

setup. The instructor will give you the username and password if these are differentin your classroom.)

__ 2. If not already done, open a Terminal session.

__ a. Right-click the empty Linux desktop and select Open Terminal.

__ 3. First, try to get general information about commands that can be used in the CLP.

db2 ? | more

You will get a list with all possible commands. Scroll through this list to see thepossibilities.

__ 4. Now examine what can be done with the getcommand.

db2 ? get | more

________________________________________________________________

__ 5. Next lets assume you receive an SQLSTATE=08003. How you can determine whatthis SQLSTATE means? Execute the correct command and explain the meaning.

________________________________________________________________

__ 6. Next lets examine the options set for your CLP session. Issue the correct command

and determine which options are set to on.

________________________________________________________________

________________________________________________________________


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4.0

empty __ 7. Next lets create a script with the name myscript00.cmd, which connects to the

sampledatabase, selects the columns empnoand lastnamefrom the table

employeeand lists the database manager configuration. Use the appropriate tool(for example, gedit or vi) to create and save the script.

gedit myscript00.cmd

or

vi myscript00.cmd

Enter these lines in the file:

db2start;

connect to sample;

select name, price from product;

get dbm cfg;

If using vi, save this by issuing :wqwithin vi.

__ 8. Now execute the created script using your CLP session and echo the current

command.

db2 -tvf myscript00.cmd

__ 9. As there is a lot of information returned from the select statement and the database

manager configuration, it might be helpful to store the information in a file called

myout00.txtto be able to examine it step by step. Execute the script again and

save the output in a file named myout00.txt.

db2 -tvf myscript00.cmd -z myout00.txt

__ 10. You can now examine the file using the morecommand.

more myout00.txt

Section 2: Exploring the CLPPlus usage

This is a short lab, exposing you to the use of Command Line Processor Plus (CLPPlus).

__ 1. There are several ways that you can use CLPPlus to connect to a database.

__ a. The first way is to issue a command string that starts CLPPlus and connects to adatabase at the same time. On a DB2 command window, issue:

clpplus inst00@localhost:30000/sample

When asked for the password, enter ibm2blue.

Notice that you are connected to the SAMPLE database as the inst00user.

__ 2. Now exit CLPPlus (with either exit or quit):

exit;

__ 3. Start CLPPlus again, but with no arguments:


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clpplus

Notice you are not connected to a database yet.

__ a. Connect to the SAMPLE database.

CONNECT inst00/ibm2blue@localhost:30000/sample

Note

If you cannot use the @ key for some reason, simple issue the CONNECT commandand you will be prompted for the rest of the information needed.

__ b. You should see:

C:\Documents and Settings\inst00>clpplus

CLPPlus: Version 1.0

Copyright (c) 2009, IBM CORPORATION. All rights reserved.

SQL> CONNECT inst00/ibm2blue@localhost:30000/sample

Database Connection Information

Hostname = localhost

Database server = DB2/NT SQL09070

SQL authorization ID = inst00

Local database alias = SAMPLE

Port = 30000

SQL>

__ 4. Now create a new table (test) in the SAMPLE database that you can use:

Note

You must include the statement terminator character; in this case, the semi-colon

(;), whenever you issue a command with CLPPlus.

CREATE TABLE test (c1 int, c2 char(20));

__ a. Now check the table structure with DESCRIBE:

DESCRIBE test;

__ b. Populate the table by inserting a new row of data:

INSERT INTO test VALUES (1, 'TEST');


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4.0

empty __ c. Now retrieve data from the test table:

SELECT * FROM test;

__ d. Update a row of data in the test table:

UPDATE test SET c2 = 'HOME';

__ e. Now check your change:

SELECT * FROM test;

__ 5. Finally, drop the test table and exit the CLPPlus utility:

drop table test;

quit;


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Section 3: Looking at Release Notes

__ 1. Look at the files located in the Readme subdirectory. They are located in the DB2installation directory, under Readme/en_US.iso88591(or similar directory). Thesefiles will redirect you to a URL that contains the Release Notes.

__ 2. Start the Control Center: enter db2cc &. When given the opportunity to select the

Control Center view, just click the OKbutton. This will provide the advanced view.

__ 3. Click the + next to the All Databases folder in the left pane. Select the + left of the

SAMPLE database to explore what is under the database. You will see folders likeTables, Views, Aliases, and so forth.

__ 4. Next click the folder named TABLES. In the Contents pane, all tables are shown.

__ 5. Select the EMPLOYEEtable. What is displayed in the Detail pane?

________________________________________________________________

________________________________________________________________

__ 6. Now click the OPENtab in the Detailpane. What is the result?

________________________________________________________________________________________________________________________________

__ 7. Close this window and click the QUERYtab. What happens now?

________________________________________________________________

________________________________________________________________

__ 8. Leave the select * line and add a line with the following: select empno fromemployee; and execute this using the green arrow on the top left corner or bypressing Ctrland Enter. Is the execution of two SQL statements successful and are

the results displayed under the Query results tab?________________________________________________________________

________________________________________________________________

__ 9. Change back to the Control Center using the appropriate button (Object View tab),and examine the different options by first selecting database and then right-clicking

the database.

Repeat this examination for other objects like instance, table, and so forth.

Terminal

more /opt/ibm/db2/V9.7/Readme/en*/Release.Notes

This file will instruct you to view the Release notes at this web site:

http://publib.boulder.ibm.com/infocenter/db2luw/v9r7/topic/com

.ibm.db2.luw.common.doc/doc/c0023859.html


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4.0

empty __ 10. You can also examine the other files under sqllib subdirectory.

ls -l sqllib

__ 11. Determine your systems DB2 registry values:

db2set -all

__ 12. Log off asinst00from the Windows XP VM image.

End of exercises


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Copyright IBM Corp. 1999, 2010 Exercise 3. Create an instance and explore the environment 3-1

4.0

empty Exercise 3. Create an instance and explore theenvironment


In this exercise, you will create an instance on the Linux databaseserver to be prepared for further steps.

What this unit is about


Create an instance

Set environment variables Determine the type of DB2 installation from the Database Manager

Configuration file Define the Administration Server (DAS) and a database instance

through the DB2 Control Center on the remote administrativesystem

Introduction

You will now perform the steps needed to create an instance andexamine what file structures are built when creating an instance.

The general approach taken in the classroom for DB2 9 is to use aVMware VM image running on the same PC that you login to.

When you are using Linux commands, there may be slight differencesdepending on the versions of Linux (RedHat, SuSE, ...).


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Section 1: Creating the instance

Note

For the single-user VMware Linux environment, your user ID will generally be inst20.

Note

You may have already completed Step 1 in a previous exercise.

__ 1. Log in as inst00.

login: inst00

inst00s Password: ibm2blue

The login dialog may be different depending on the vendor of the Linux system

but will always require a username and password.



You may get a message that the db2profile cannot be found this can be

ignored at this time.

__ b. You will need to start the DAS to use the GUIs.

su - dasusr1

(password is ibm2blue)

db2admin start

exit

__ 3. Switch user to root.

su - rootEnter root's password that your instructor gave you.


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empty

__ 4. Create your FencedID user group named fence20. The use of the term Fencedwill

be discussed in lecture later.

__ 5. Create your user group named adm20. This will be used to provide a level ofauthorization in the database server.

__ 6. Create your instance user name called inst20. inst20's primary group should be

adm20.

__ 7. Create your fenced user name of fenced20. The primary group for fenced20should

be fence20.

Background Information Do not execute these steps.

The command syntax to create a DB2 Instance on your Linux server is(DO NOT issue this command now; it will be issued later):

db2icrt -u FencedID InstName

You must be the Linux system administrator (root) in order to execute thiscommand. The command can be found in the DB2DIR/instancedirectory

where DB2DIR =

/opt/ibm/db2/V9.7

As an alternative, you can have the DB2 Installer utility, db2setup, create thegroups and usernames for the DB2 Administration Server and a default user

instance. The DB2 Installer program can also be used to create additionalinstances after the DB2 product is installed. Reference the appropriate chapter

for your operating system in the Quick Beginnings Guide.

The InstName and FencedID names must already exist before you issue the

db2icrtcommand. You also need separate and unique Group names for theInstName and FencedID names for security purposes. The next set of stepshave you create Linux group names and user names for InstName and

FencedID.

Terminal groupadd fence20

Terminal groupadd adm20

Terminal useradd -m -g adm20inst20

Terminal useradd -m -g fence20fenced20


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__ 8. Provide a password for user inst20. inst20's password should be ibm2blue.

__ 9. Provide a password for user fenced20. fenced20's password should be ibm2blue.

__ 10. You are now ready to create your instance. Create your instance using inst20forInstName and fenced20for FencedID. This command may take a few minutes to

execute.

Remember, since you are logged in as root,the Linux operating system will notautomatically look in the current directory for an executable, so you must eitherspecify the complete path, or tell the operating system to look in the current directory

by prefixing the command with ./as in ./db2icrt. (Thats a dot slash).

/opt/ibm/db2/V9.7/instance/db2icrt -u fenced20 inst20

Note

You may get an error indicating that ulimit cannot raise limit, but you should also

see a DB2 return code (DBI1070I) that indicates that the program db2icrtcompleted successfully.

__ 11. Look at the instances that have been created using the db2ilistcommand. Doyou see any other instances?

_______________________________________________________________

/opt/ibm/db2/V9.7/instance/db2ilist

Terminal

ibmclass:~ # passwd inst20

Changing password for inst20.

New Password:Reenter New Password:

Password changed.

ibmclass:~ #

Terminal

ibmclass:~ # passwd fenced20

Changing password for fenced20.

New Password:

Reenter New Password:

Password changed.

ibmclass:~ #


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empty __ 12. When you created your instance, a directory named sqllib was added under theHOME directory of the instance (/home/inst20). List the attributes of this directory

by executing the following Linux command:

ls -dl /home/inst20/sqllib

The output should look like this:

drwxrwsr-t 15 inst20 adm20 1072 Jun 30 14:01 /home/inst20/sqllib__ 13. What is the owner name?

________________________________________________________________

__ 14. What is the group name?

________________________________________________________________

__ 15. What file permissions does the owner have?

________________________________________________________________

__ 16. What file permissions does the group have?________________________________________________________________

__ 17. What file permissions do the users have?

________________________________________________________________


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Section 2: Checking your environment

You will now exit from your session as rootand become the Database Server instanceowner. You no longer need to be the Linux administrator to configure DB2.

__ 1. Exit from your current terminal session.

exit (exit from root)

exit (exit from inst00)

This will close your Linux terminal session.

__ 2. Log out from the Linux image.

__ a. Click the Computermenu at the bottom left of the Linux screen and select

Logout.

__ b. Click Log Out.

__ 3. Log in as inst20. If prompted to change your password, continue to use ibm2blueas the password.

Your login dialog may be different depending on the vendor of the Linux system

but will always require a username and password. If you have to enter a new

password, you will always have to do so twice to verify that you typed the new

password consistently.

__ 4. On Linux systems, DB2 creates a profile named db2profilewhich is used to set

your sessions environment when you log in. Look at the file sqllib/db2profile.

__ a. Open a terminal session by right-clicking the empty Linux desktop and select

Open Terminal.

cdmore sqllib/db2profile

Note

To increase the font size on your Terminal window, click on the Editmenu and

select Current Profile...

Then uncheck the'Use the system terminal font' box.

Click the Closebutton.

__ 5. What will the DB2INSTANCE variable be set to?

________________________________________________________________

__ 6. Quit the more command (type q).


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4.0

empty __ 7. When you created your instance, the db2icrtcommand updated your .bashrctoexecute the db2profilecommand file. Look at your .bashrcfile. Note the lines

added by DB2 to execute your db2profile.

You should see lines that indicate:

# The following three lines have been added by DB2.

if [ -f /home/inst20/sqllib/db2profile ]; then

. /home/inst20/sqllib/db2profile

fi


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Section 3: Exploring DB2 and Setting up Remote Connectivity

__ 1. Issue the db2 getcommand that shows your current instance value.

________________________________________________________________

__ 2. Issue the db2 getcommand that shows your database manager configuration fileparameters. (Pipe to more.)

________________________________________________________________

__ 3. What is your node type?

Note

Second textual line from the top in the previous step.

________________________________________________________________(If it is NOT Enterprise Server Edition with local and remote clients,

Communication Support may not have been installed correctly contact yourinstructor.)

__ 4. What is the default database path?

________________________________________________________________

__ 5. How is the authentication set for your instance (where will the userid/password be

validated)?

__________________________________________________________________ 6. Look at your DB2 Registry variables by issuing the following command:

db2set -all

__ 7. What is the DB2 Administration Server (DAS) name?

________________________________________________________________

__ 8. Look at the entry for the DB2 System Name it should be set to the machine namefor your server computer.

________________________________________________________________

__ 9. Update your Database Manager Configuration file to add the correct SYSADMGroup (this may already be done for you). Issue the following command:

db2 update dbm cfg using sysadm_group adm20

__ 10. Update your Database Manager Configuration file to add a TCP/IP Port number in

order to support remote communications. First, find the port number you will beusing:

view /etc/services


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4.0

empty Type Gto get to the bottom of the file. Your port number (previously set up for you)should be 30200. Issue :q!to exit the view.

__ 11. Issue the following command:

db2 update dbm cfg using svcename 30200

__ 12. Set the DB2COMM variable in your DB2 Registry indicating that you support TCP/IP

communications to your instance. Issue the following command:db2set DB2COMM=TCPIP -i inst20

__ 13. Look at your DB2 Registry variables by issuing the following command:

db2set -all

__ 14. What value is DB2COMM set to?

________________________________________________________________

__ 15. Start your instance by issuing the db2startcommand. If you receive an errormessage about not being able to start communications, contact your instructor.

Note

If you get a message about using evaluation period licenses, this can be ignored.

________________________________________________________________


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Section 4: Setup for Remaining Exercises

__ 1. Copy the files from the labfilessource directory to your home directory by issuing thefollowing commands. Ignore any error messages about not having permissions

(some files are not to be copied).

cd

cp -r /home/labfiles/cl2x/lab* .ls

Note

In the above task, the cl2x is lowercase CL2X.

End of exercises


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Copyright IBM Corp. 1999, 2010 Exercise 4. Creating databases and data placement 4-1

4.0

empty Exercise 4. Creating databases and dataplacement


During this exercise, you will create your database and your tablespaces. Also in this exercise, you will select information on table

spaces from the system catalog (SYSCAT) views.



Create a database Create a table space

Execute a script file to create multiple table spaces Access the SYSCAT views containing table space information

List table space information List container information

Introduction

This exercise will step you through the creation of your database andthe table spaces that will be needed to hold the tables in your

database. In most cases, you will have an option in this exercise toperform the functions using either of:

Using a Terminal session on your Linux system (referred to as

Terminal) Using the graphical tools on your Linux system (referred to as GUI)


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Section 0: Setup

If not already done, start your Linux VMware VM image and log in as the inst20 user.

__ 1. If not already done, open a Terminal session.__ a. Right-click the empty Linux desktop and select Open Terminal.

Section 1: Creating the database

You will be looking at the create database command and determining what would be

produced if you ran it. DO NOT create the database until the exercise specifically

instructs you to do so.

__ 1. Creating a database can be done with the DB2 command create database. Use the

online help facility to display the DB2 command syntax for create database.

__ 2. What information can you specify on the create database command?

________________________________________________________________

__ 3. Based on what you learned in lecture, what table spaces are created when a

database is created?

________________________________________________________________

__ 4. What type of table space, SMS or DMS, will your database use by default for thesedefault table spaces?

________________________________________________________________

Terminal db2 ? create db | more

GUI

__ Start the DB2 Control Centerby entering db2cc &on your Terminalsession. This starts the DB2 Control Centerin the background, so you

can continue to use the Terminal session for other things.

__ From the DB2 Control Center, open the Command Editor(either choosethe Tools option on the menu bar and then select Command Editor, or

choose the Command Editor icon on the tool bar (4th from the left)).

__ From the DB2 Command Editor, in the Commandsbox, enter:

? create database

__ Choose Selectedfrom the menu bar.

__ Select Executefrom the pull-down menu.


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4.0

empty __ 5. Before we create our MUSICDBdatabase, remember what you learned in lectureabout what some of the defaults will be.

What is the default path that the database will be created on?

What will be the default table space type (SMS or DMS) for the table spaces that

will be created to hold User Tables, Catalog Tables, and Temporary Tables?

What are the default Extent and Prefetch sizes? What are the default Territory, Code Set and Collating Sequence values?

_______________________________________________________________

__ 6. Create your database with a Database name of MUSICDBusing the directories

shown. It will take a few minutes to create the database.

TerminalFrom your Terminal session, run the following command:

db2 create db musicdb on /dbauto/path1 dbpath on /database


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__ 7. You should now have your MUSICDBdatabase created. The System Database

Directorycontains an entry for all databases known by this instance. Check the

System Database Directoryfor an entry for the MUSICDBdatabase by issuing thelist db directorycommand.

GUI

To start the Control Center, enter the following command in a Terminal

session:

db2cc &

From the Control Center, click the +next to your INST20 instance, and thenright-click the Databasesfolder and select Create Database -> Standard.

__ On the Namepage, enter a database name of MUSICDB. The default isto let DB2 manage the storage, but change that and specify the dbpathbe placed in the /databasedirectory while the database datawill be

placed in the /dbauto/path1directory.

__ On the Regionpage, make sure Country/Regionis set to default. (If yourinstructor has told you to use a different language, please verify the

change with your instructor.)

__ Accept the values for Territory and Codeset.

__ Select the System Collating Sequenceradio button.

__ On the Summarypage, click Show Command. Look at the generated

command and Closethe Show Commandwindow.

__ Click the Finishbutton.

__ Wait a couple of minutes while your database is being created. Youmight receive an information message that you could launch the

Configuration Advisorto tune your database. Do not use the

Configuration Advisorat this time. Click the Nobutton.

__ Your database will appear under the Databasesfolder in the left pane of

your DB2 Control Centerpanel. Select the +next to the Databasefolderto see your MUSICDBdatabase listed.

Note:The first request that you make from the client to access information

in the database (for example, if you look at the list of tables via the DB2

Control Center) will automatically bind a number of packages to support the

client utilities. This might take a few moments; please be patient.

Terminal db2 list db directory


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empty

__ 8. What is the Database alias name and where did it come from?________________________________________________________________

__ 9. What does a Directory entry type of Indirect mean?

________________________________________________________________

__ 10. It is time to connect to your MUSICDBdatabase. Check your current connectionstate with the get connection statecommand.

__ 11. What is the connection state?

________________________________________________________________

__ 12. Connect to your MUSICDBdatabase.

__ 13. Did you get connected to your MUSICDBdatabase?

________________________________________________________________

__ 14. Check your connection state again. What does it show?

________________________________________________________________

GUI

__ From the DB2 Command Editor, enter:

list db directory

__ Press Ctrl-Enterto cause the command to be executed.

Terminal db2 get connection state

GUI

From the DB2 Command Editor, enter:

get connection state

Select the green arrow icon under the Commandstab to execute the

command.

Terminal db2 connect to musicdb

GUIFrom the DB2 Command Editor, enter and execute:

connect to musicdb

Terminal db2 get connection state


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__ 15. Every database has its own Database Configuration file that contains informationabout the database and tuning parameters. Look at the Database Configuration file

for your MUSICDBdatabase.

__ 16. Find the default values for two specific configuration parameters for your database,

LOCKLIST and MAXLOCKS. Since there are a large number of configuration

parameters, we can use grepto find the specific ones we want when using a localconnection the option -imeans case insensitive.

_______________________________________________________________

__ 17. Values of some of the parameters can be changed. Update the following parametersand specify the values shown.

Change maxlocks to 20

Change num_freqvalues to 12

GUI

From the DB2 Command Editor, delete the last statement you entered in

the Commandsbox.

Choose Selectedfrom the menu bar and then select History.

Select get connection statein the Commandsbox, and click the Pastebutton.

Execute the command:

get connection state

Terminal db2 get db cfg for musicdb | more

GUI

__ Switch to your DB2 Control Centersession.

__ Select MUSICDB in the left pane under the Databasesfolder.

__ Right-click and select Configure Parametersfrom the pop-up menu.

__ Scroll through the list to see the parameters that can be changed.

__ Click the Cancelbutton when finished.

Terminal db2 get db cfg for musicdb | grep -i lock

GUISwitch to the DB2 Control Centersession looking for these two specific

configuration parameters and their values: LOCKLISTand MAXLOCKS.

Terminaldb2 update db cfg for musicdb using maxlocks 20 num_freqvalues

12


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empty

__ 18. When do these database configuration file changes take effect?

__________________________________________________________________ 19. Check to see if the Current and Delayed Valuesare the same for maxlocks and

num_freqvalues.

__ 20. Some default table spaces were created during creation of the database. List thetable space information.

__ 21. What are the table space names and what ID number is associated with the table

space?

________________________________________________________________

________________________________________________________________

________________________________________________________________

Note

dbsize returns the size of the database (in bytes) and is calculated as follows:

dbsize = sum (used_pages * page_size) for each table space (SMS and DMS).

dbcapacity returns the database capacity (in bytes) (not available on partitioned

database systems) and is calculated as follows: dbcapacity = SUM (DMSusable_pages * page size) + SUM (SMS container size + file system free size per

GUIFrom the Command Editor, enter and execute:

update db cfg for musicdb using maxlocks 20 num_freqvalues 12

Terminaldb2 get db cfg for musicdb show detail | more

Scroll through the output.

GUI

Issue the following command from Command Editor:

get db cfg for musicdb show detail

Scroll through the output. (You might need to scroll to the right to see bothCurrent and Delayed Values.)

Terminal db2 list tablespaces | more

GUI

From the Command Editor:

list tablespaces


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container). If multiple SMS containers are defined on the same file system, the filesystem free size is included only once in the calculation of capacity.

__ 24. Table space container information can be displayed with the list tablespacecontainerscommand. Use the Help facility to show the DB2 command syntax.

.

__ 25. Show the container information for table space ID 0. What type of container is thisand where is it located?

________________________________________________________________

__ 26. List the names of the system catalog tables. What are these tables?

________________________________________________________________

__ 27. Get more detailed information for the table spaces and indicate which table spaces

are set to automatic size increase.

Terminal db2 "? list tablespace containers"

GUI ? list tablespace containers

Terminal db2 list tablespace containers for 0

GUI list tablespace containers for 0

Terminal

db2 list tables for system | more

-or-db2 "select substr(tabname,1,18) as tabname,

substr(definer,1,10) as definer,

case type when 'T' then 'T Table'

else 'Error' end as type

from syscat.tables where type = 'T' and definer = 'SYSIBM' " |

more

GUI

list tables for system

-or-

select tabname, definer,

case type when 'T' then 'T Table' else 'Error' end as type

from syscat.tables where type = 'T' and definer = 'SYSIBM'


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4.0

empty ________________________________________________________________

__ 28. Verify which default path containers are associated with the temporary table space

and the default user table space.

________________________________________________________________

__ 29. Retrieve detailed container information from the Catalog tables. What is thecontainer types for each container (you will use a script file)?

________________________________________________________________

Terminal db2 get snapshot for tablespaces on musicdb | more

GUI get snapshot for tablespaces on musicdb

Terminaldb2 list tablespaces

db2 list tablespace containers for 1


GUI

On the Command Editor, Commandstab, first make sure the Toolisconfigured for multiple commands.

__ Select Tools Settingsicon on the tool bar.

__ Make sure the checkbox next to Use statement termination character

is checked, and that the statement termination character specified is asemicolon.

__ Close Tools Settingwindow.

list tablespaces;

list tablespace containers for 1;

list tablespace containers for 2;

Terminal

Verify how to set the script options by examining the output from thefollowing command:

db2 list command options | more

Execute the script to retrieve the information:

cd $HOME/lab4

more select_containers.sql

db2 -tvf select_containers.sql


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GUI

Using the Command Editor, execute the following statement:

select tbsp_name, tbsp_id, container_name, container_id,

container_type

from sysibmadm.snapcontainer order by tbsp_id


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4.0

empty Section 2: Creating Table Spaces

Your MUSICDBdatabase requires additional table spaces. You will create one of thesetable spaces. You will then create the remaining six table spaces via a script command file.

__ 1. Create your first table space. It should have the following characteristics:

Table space name is TSP01

Table Space Type is Regular

Buffer Pool should be IBMDEFAULTBP (which is also the default)

Table Space management is DMS (also called high performance)

Container size should be 104 pages with 4 KB pages

Container should be a File

Container path and filename should be /dbauto/path1/inst20/dms/tsp01

Table space extent size and prefetch size should be 4

Terminal

Change to the lab4directory:

cd $HOME/lab4

This work has been done for you. View thecreate_tablespace_tsp01.ddl file, then execute it.

more create_tablespace_tsp01.ddl

db2 -tvf create_tablespace_tsp01.ddl


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__ 2. Verify your new table space (TSP01) by listing table spaces.

Verify that the Allocated size is 104 pages. Verify that the extent size and prefetch

size are both 4. If not, drop the table space and create it again.

GUI part 1

From the Control Centerright-click Table Spacesand choose Create.

__ Use the Create Table Space Wizardto specify the characteristics as

shown in the instructions above.

__ On the Namepage, indicate name of tsp01. Click the I want to managemy storage manuallyradio button.

__ On the Typepage, indicate Regular.

__ On the Space Managementpage, indicate Database-managed space(high performance).

__ On the Containerspage, click Add; specify 4 KBpages, then a size of

104. Indicate the file name as given in the instructions. (Select thedirectory name of /dbauto/path1/inst20 , but you will need to type

in dms/tsp01as the Container name since the dmsdirectory does notyet exist.)

__ Click OK.

__ Ensure that on the Read/Writewindow, you indicate Extentsize as 4

pages (four 4KB pages).

__ Ensure that on the Recoverywindow, you uncheck the box: Enable

dropped table recovery.

GUI part 2

After specifying all the characteristics, check your settings by clicking ShowSQL on the Summarypage before creating the table space. Your SQL

should look like this:

CREATE REGULAR TABLESPACE TSP01 PAGESIZE 4 K MANAGED BY

DATABASE USING ( FILE '/dbauto/path1/inst20/dms/tsp01' 104 )EXTENTSIZE 4 OVERHEAD 10.5 PREFETCHSIZE 4 TRANSFERRATE 0.14

BUFFERPOOL IBMDEFAULTBP DROPPED TABLE RECOVERY OFF;

Click Finishto create the table space.

Terminaldb2 connect to musicdb

db2 list tablespaces show detail | more

GUIFrom the Command Editor:

list tablespaces show detail;


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4.0

empty __ 3. On your Linux Database Server, a script file named create_tablespaces.ddl contains SQL statements to create your additional table spaces.

From your terminal session:

more create_tablespaces.ddl

Notice that the file creates six table spaces named tsp02, tsp03, tsp04, tsp05, tsp06,

and sms01.__ 4. Execute the script file, which you viewed in the previous step, to create your

remaining table spaces.

Make sure you have the following options set before executing the script:

Auto commit should be enabled.

Execution should be stopped if there is an error.

Commands and statements should be echoed back to the screen.

A semicolon should be used as the termination character.

________________________________________________________________

________________________________________________________________

__ 5. Confirm that the additional six table spaces are present. Are your new table space

names listed?

________________________________________________________________

__ 6. From your Terminal session, change directories to /dbauto/path1/inst20/dms and do a list of the files.

cd /dbauto/path1/inst20/dms

ls

__ 7. What are these files?

TerminalExecute the script with the following script options:

db2 -tvsf create_tablespaces.ddl

Terminal db2 list tablespaces | more

GUI

From the DB2 Control Center, refresh table spaces.

__ Right-click and select Table Spaces.

__ Select Refreshfrom the pop-up menu.

__ Check the Objectpane for your new table spaces.


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________________________________________________________________

__ 8. Where are the rest of the DMS table space files?


db2 list tablespace containers for 8db2 list tablespace containers for 7

Tablespace Containers for Tablespace 7

Container ID = 0Name = /dbauto/path1/inst20/NODE0000/MUSICDB/T0000007/C0000000.LRG

Type = File

Container ID = 1

Name = /dbauto/path2/inst20/NODE0000/MUSICDB/T0000007/C0000001.LRG

Type = File

Container ID = 2

Name = /dbauto/path2/inst20/NODE0000/MUSICDB/T0000007/C0000002.LRG

Type = File


Tablespace Containers for Tablespace 8

Container ID = 0

Name = /dbauto/path1/inst20/NODE0000/MUSICDB/T0000008/C0000000.USR

Type = File

Container ID = 1

Name = /dbauto/path2/inst20/NODE0000/MUSICDB/T0000008/C0000001.USR

Type = File

Container ID = 2

Name = /dbauto/path2/inst20/NODE0000/MUSICDB/T0000008/C0000002.USRType = File

__ 9. Display detailed information about the table spaces. You must be connected to the

database first.

__ 10. What ID numbers are associated with each of the table spaces? How many usable

pages are there in the DMS table spaces? List a few differences between SMS andDMS table spaces.

Terminaldb2 connect to musicdb

db2 list tablespaces show detail | more

GUI

From the Command Editor:

connect to musicdb;

list tablespaces show detail;


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4.0

empty ________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

__ 11. Show the container information for table space ID 4. What type of container is this

and where it is located?

_______________________________________________________________

_______________________________________________________________

__ 12. Show the container information for your SMS table space ID 10. What type of

containers are being used and where are they?

________________________________________________________________

________________________________________________________________

__ 13. From your Terminal session, change directory to the smsdirectory and list thedirectory.

cd /dbauto/path1/inst20/sms/sms01

ls -l

__ 14. Table data is stored in .DAT files, indexes in .INX files, and LOB info in .LB and .LBA

files. And there is an SQLTAG.NAM file that holds overhead information about thiscontainer, and the tables that are found there.

Currently there are no tables in this table space.

__ 15. From your Terminal session, create a table and an index on that table in this table

space. And then list the contents of the directory again. What do you see now? Arethe new files named after the table name?

db2 "create table t (i int) in sms01"

db2 "create index ii on t(i)"

ls -l

________________________________________________________________

Terminal db2 list tablespace containers for 4 show detail

GUI list tablespace containers for 4 show detail

Terminal db2 list tablespace containers for 10 show detail

GUI list tablespace containers for 10 show detail


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__ 16. Drop table tas it is no longer needed:

db2 drop table t

__ 17. Perform another list of the directory and compare the file sizes from the previous list:

ls -l

__ 18. Table space information is accessible through a view with the name

SYSCAT.TABLESPACES. The fields that contain table space information are:

TBSPACE Name of primary table space for this table

DEFINER Authid of table space creator

TBSPACEID Internal table space identifier

TBSPACETYPE Type of table space. D for DMS or S for SMS.

DATATYPE Type of data that can be stored in the table space. L for long dataonly, A for all types of permanent data, or T for temporary tables only.

Issue a select from SYSCAT.TABLESPACES to answer the following questions.

__ 19. What is the authorization ID of table space definer for the default table spaces?

________________________________________________________________

__ 20. Which of the various table spaces allows long data types?

________________________________________________________________

__ 21. Which table space only allows temporary table data?________________________________________________________________

__ 22. Table space information for individual tables can be accessed through theSYSCAT.TABLES view. The fields that contain table space information are:

TBSPACEID Table space ID of primary table space for this table

TBSPACE Name of primary table space for this table

INDEX_TBSPACE Table space containing the indexes for this table

Terminal

cd $HOME/lab4

more select_tablespaces.sql

db2 -tvf select_tablespaces.sql

GUI

select tbspace, definer, tbspaceid, tbspacetype, datatype

from syscat.tablespaces

If the results do not show up on the Query Resultstab, either change your

select statement to the one shown in the Local instructions so you can see

the fields without excessive scrolling, or exit the Command Editor, reopen it,and reissue your statement.


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4.0

empty LONG_TBSPACE Table space containing LONG or LOB data for this table

List the table space information for the table SYSIBM.SYSTABLES.

__ 23. Is the SYSIBM.SYSTABLES table divided between different table spaces?

________________________________________________________________

________________________________________________________________

________________________________________________________________

__ 24. In DB2 Version 9.7, there is a new way to view table space information. Use theMON_GET_TABLSPACE function to view metrics for the table spaces.

db2 "SELECT varchar(tbsp_name, 30) as tbsp_name, member, tbsp_type,

pool_data_p_reads

FROM TABLE(MON_GET_TABLESPACE('',-2)) AS t

ORDER BY pool_data_p_reads DESC"

__ a. This SQL has been done for you. View the select_mon_get_tbsp.sqlfile then

execute it:

more select_mon_get_tbsp.sqldb2 -tvf select_mon_get_tbsp.sql

Example output:

TBSP_NAME MEMBER TBSP_TYPE POOL_DATA_P_READS

------------------------------ ------ ---------- --------------------

SYSCATSPACE 0 DMS 130

USERSPACE1 0 DMS 34

TSP03 0 DMS 10

SYSTOOLSPACE 0 DMS 6

TSP01 0 DMS 6TSP06 0 DMS 6

TSP02 0 DMS 4

TSP04 0 DMS 4

TSP05 0 DMS 4

TEMPSPACE1 0 SMS 0

SMS01 0 SMS 0

11 record(s) selected.

Terminalmore select_systables.sql

db2 -tvf select_systables.sql

GUI select tabname, tbspaceid, tbspace, index_tbspace, long_tbspacefrom syscat.tables where tabname='SYSTABLES'


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__ 25. Now use the MON_GET_CONTAINER function to return metrics about table spacecontainers:

db2 "SELECT varchar(container_name,70) as container_name,

varchar(tbsp_name,20) as tbsp_name,

pool_read_time

FROM TABLE(MON_GET_CONTAINER('',-2)) AS t

ORDER BY pool_read_time DESC"

__ a. This SQL has been done for you. View the select_mon_get_cont.sqlfile thenexecute it:

more select_mon_get_cont.sql

db2 -tvf select_mon_get_cont.sql

Example output:

CONTAINER_NAME TBSP_NAME POOL_READ_TIME--------------------------------------------------------------- -------------- --------------

/dbauto/path1/inst20/NODE0000/MUSICDB/T0000000/C0000000.CAT SYSCATSPACE 613

/dbauto/path1/inst20/NODE0000/MUSICDB/T0000002/C0000000.LRG USERSPACE1 25

/dbauto/path2/inst20/NODE0000/MUSICDB/T0000007/C0000001.LRG TSP04 14

/dbauto/path1/inst20/NODE0000/MUSICDB/T0000003/C0000000.LRG SYSTOOLSPACE 8

/dbauto/path1/inst20/dms/tsp01 TSP01 6




/dbauto/path1/inst20/NODE0000/MUSICDB/T0000008/C0000000.USR TSP05 1

/dbauto/path1/inst20/NODE0000/MUSICDB/T0000001/C0000000.TMP TEMPSPACE1 0



/dbauto/path1/inst20/NODE0000/MUSICDB/T0000007/C0000000.LRG TSP04 0/dbauto/path2/inst20/NODE0000/MUSICDB/T0000007/C0000002.LRG TSP04 0



/dbauto/path1/inst20/sms/sms01 SMS01 0

17 record(s) selected.

__ 26. Enter connect reset to break your database connection.

Terminal db2 connect reset

GUI connect reset


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4.0

empty Script files used for lab4

create_tablespace_tsp01.ddlconnect to musicdb user inst20 using ibm2blue;

update command options using

l on /home/inst20/lab4/create_tablespace_tsp01.logr on /home/inst20/lab4/create_tablespace_tsp01.out;

create regular tablespace tsp01

managed by database

using (file '/dbauto/path1/inst20/dms/tsp01' 104)

extentsize 4 autoresize yes ;

create_tablespaces.ddlalter database musicdb add storage on '/dbauto/path2';

connect to musicdb user inst20 using ibm2blue;


l on /home/inst20/lab4/create_tablespaces.log

r on /home/inst20/lab4/create_tablespaces.out;


managed by database


extentsize 2 autoresize yes maxsize 2 M ;

create large tablespace tsp03

managed by database


extentsize 8 autoresize yes maxsize 10 M ;

create tablespace tsp04

managed by automatic storage initialsize 100 K maxsize none

extentsize 2;

create regular tablespace tsp05 initialsize 64 K maxsize 1 Mextentsize 2;


managed by database


extentsize 4;


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create regular tablespace sms01

managed by system

using ('/dbauto/path1/inst20/sms/sms01')

extentsize 4;

select_containers.sql

connect to musicdb user inst20 using ibm2blue;


l on /home/inst20/lab4/select_containers.log

r on /home/inst20/lab4/select_containers.out;

select tbsp_id as TS_ID, substr(tbsp_name,1,20) as TS_name,

container_type, substr(container_name,1,60) as container_name

from sysibmadm.snapcontainer

order by tbsp_id, container_id;

select_mon_get_cont.sqlconnect to musicdb user inst20 using ibm2blue;


l on /home/inst20/lab4/select_mon_get_cont.log

r on /home/inst20/lab4/select_mon_get_cont.out;

select varchar(container_name, 70) as container_name,

varchar(tbsp_name, 20) as tbsp_name, pool_read_time

from table(mon_get_container('', -2)) as torder by pool_read_time desc ;

select_mon_get_tbsp.sqlconnect to musicdb user inst20 using ibm2blue;


l on /home/inst20/lab4/select_mon_get_tbsp.log

r on /home/inst20/lab4/select_mon_get_tbsp.out;

select varchar(tbsp_name, 30) as tbsp_name, member,tbsp_type, pool_data_p_reads

from table(mon_get_tablespace('', -2)) as t

order by pool_data_p_reads desc ;

select_systables.sqlconnect to musicdb user inst20 using ibm2blue;


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4.0

empty update command options using

l on /home/inst20/lab4/select_systables.log

r on /home/inst20/lab4/select_systables.out;

select substr(tabname,1,18) as tabname, tbspaceid,

substr(tbspace,1,20) as tbspace, substr(index_tbspace,1,20) as

index_tbspace,substr(long_tbspace,1,20) as long_tbspace

from syscat.tables where tabname='SYSTABLES' ;

select_tablespaces.sqlconnect to musicdb user inst20 using ibm2blue;


l on /home/inst20/lab4/select_tablespaces.log

r on /home/inst20/lab4/select_tablespaces.out;

select substr(tbspace,1,18) as tbspace,

substr(definer,1,10) as definer, tbspaceid, tbspacetype,

datatype from syscat.tablespaces;

End of exercises


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Copyright IBM Corp. 1999, 2010 Exercise 5. Create objects 5-1

4.0

empty Exercise 5. Create objects


This exercise is an online exercise which creates objects used in a

database.



Create tables

Create indexes

Create views

Create an alias Add referential integrity constraints to a table

Add check constraints to a table

Add triggers to a table

Access System Catalog information about objects

Retrieve an XML document

IntroductionNow that the database and table spaces have been created, the

database objects needed for your MUSICDBdatabase need to becreated. The DB2 Control Center (GUI exercises) or a DB2 statement

will be used to create at least the first object of each type, such as thefirst table. Where there are multiple objects of the same type to be

created, a script file will be executed to create all the remaining objectsof a certain type.


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Throughout the exercise, if the DB2 Message Window appears, or if you are looking at aShow SQL or Show Command window, in many cases, the exercise instructions will not

specifically tell you to close the window. Read the message, look at the SQL or Command,and then click Close to close the window.

If a GUI window, other than the Control Center, appears to be hung, check to be sure thatthe Control Center does not have a message window open. If there is a message windowopen in the Control Center, it might impact the usability of the other GUI tools.

Commands are generally to be entered on the Command Editor, Commands tab. If you

want to enter them on the Terminal session (prefaced with db2), that will generally work aswell.

In some cases, the window might need to be scrolled to access the Action buttons on the

window (like OK, Cancel, or Apply). If you cannot see the Action button, scroll down thewindow to see them.

If, at any point in the exercises, when you are importing a new script into the CommandEditor, Commands tab, you are prompted on whether you want to discard your current

script, indicate Yes.

Section 0: Setup

If not already done, start your Linux VMware image and log in as the inst20user.




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Copyright IBM Corp. 1999, 2010 Exercise 5. Create objects 5-3

4.0

empty Section 1: Create Tables

In this section, you will be creating the tables needed for your MUSICDB database.

__ 1. Create your ARTISTS table. The table should have the following characteristics.

Table schema of inst20

Table Name of artists

Regular data to go in table space tsp01

Indexes to go in table space tsp02

Long data to go in table space tsp03

The column artno should be defined as a primary key

Columns defined like the following:(artno smallint not null,

name varchar (50),

classification char (1) not null,

bio clob (100K) logged compact,

picture blob (500k) not logged compact)

Terminal

cd $HOME/lab5

A script file, create_table_artists.ddl contains the DDL needed tocreate the artists table. View it, then execute it.

more create_table_artists.ddl

db2 -tvf create_table_artists.ddl

GUI

__ Select Commandstab on the Command Editorpanel.

__ Selected-> Open(menu bar)

__ Verify that the System nameis your local workstation.

__ In the Directorieslist, select the $HOME/lab5directory by clicking twice.

__ Scroll down the Files listuntil you reach a file named

create_table_artists.ddl and select it.

__ Note that the Pathbox gets filled in with the

create_table_artists.ddl file name.

__ Click OK.


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__ 2. Verify the creation of y