Understanding DB2

Name: Understanding DB2 | Learning Visually with Examples
Brand: IBM Press
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Learning Visually with Examples

Raul Chong Xiaomei Wang Michael Dang Dwaine Snow(Autor*in)

IBM Press

2. Auflage

Erschienen am 29. Dezember 2007

1049 Seiten

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978-0-13-279741-2 (ISBN)

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Inhalt

Foreword xxiii Preface xxv Acknowledgments xxxi About the Authors xxxiii Chapter 1 Introduction to DB2 1 1.1 Brief History of DB2 1

1.2 The Role of DB2 in the Information On-Demand World 4

1.3 DB2 Editions 13

1.4 DB2 Clients 20

1.5 Try-and-Buy Versions 22

1.6 Host Connectivity 23

1.7 Federation Support 23

1.8 Replication Support 24

1.9 IBM WebSphere Federation Server and WebSphere Replication Server 25

1.10 Special Package Offerings for Developers 25

1.11 DB2 Syntax Diagram Conventions 26

1.12 Case Study 28

1.13 Summary 29

1.14 Review Questions 30

Chapter 2 DB2 at a Glance: The Big Picture 33 2.1 SQL Statements, XQuery Statements, and DB2 Commands 33

2.2 DB2 Tools Overview 38

2.4 Federation 55

2.5 Case Study: The DB2 Environment 56

2.6 Database Partitioning Feature 58

2.7 Case Study: DB2 with DPF Environment 74

2.8 IBM Balanced Warehouse 79

2.9 Summary 81

2.10 Review Questions 81

Chapter 3 Installing DB2 85 3.1 DB2 Installation: The Big Picture 85

3.2 Installing DB2 Using the DB2 Setup Wizard 88

3.3 Non-Root Installation on Linux and Unix 102

3.4 Required User IDs and Groups 105

3.5 Silent Install Using a Response File 108

3.6 Advanced DB2 Installation Methods (Linux and UNIX Only)113

3.7 Installing a DB2 License 116

3.8 Installing DB2 in a DPF Environment 118

3.9 Installing Multiple db2 Versions and Fix Packs on the Same Server 119

3.10 Installing DB2 Fix Packs 126

3.11 Migrating DB2 129

3.12 Case Study 131

3.13 Summary 133

3.14 Review Questions 134

Chapter 4 Using the DB2 Tools 137 4.1 DB2 Tools: The Big Picture 137

4.2 The Command-Line Tools 138

4.3 Web-Based Tools 157

4.4 General Administration Tools 158

4.5 Information Tools 165

4.6 Monitoring Tools 167

4.7 Setup Tools 171

4.8 Other Tools 175

4.9 Tool Settings 179

4.10 Case Study 179

4.11 Summary 184

4.12 Review Questions 185

Chapter 5 Understanding the DB2 Environment, DB2 Instances, and Databases 189 5.1 The DB2 Environment, DB2 Instances, and Databases: The Big Picture 189

5.2 The DB2 Environment 190

5.3 The DB2 Instance 198

5.4 The Database Administration Server 216

5.5 Configuring a Database 217

5.6 Instance and Database Design Considerations 224

5.7 Case Study 225

5.8 Summary 227

5.9 Review Questions 227

Chapter 6 Configuring Client and Server Connectivity 231 6.1 Client and Server Connectivity: The Big Picture 231

6.2 The DB2 Database Directories 233

6.3 Supported Connectivity Scenarios 243

6.4 Configuring Database Connections Using the Configuration Assistant 258

6.5 Diagnosing DB2 Connectivity Problems 276

6.6 Case Study 283

6.7 Summary 285

6.8 Review Questions 286

Chapter 7 Working with Database Objects 289 7.1 DB2 Database Objects: The Big Picture 289

7.2 Databases 292

7.3 Partition Groups 298

7.4 Table Spaces 299

7.5 Buffer Pools 300

7.6 Schemas 301

7.7 Data Types 302

7.8 Tables

7.9 Indexes

7.10 Multidimensional Clustering Tables and Block Indexes 347

7.11 Combining DPF, Table Partitioning, and MDC 351

7.12 Views 352

7.13 Packages 357

7.14 Triggers 358

7.15 Stored Procedures 360

7.16 User-Defined Functions 362

7.17 Sequences 364

7.18 Case Study 366

7.19 Summary 369

7.20 Review Questions 370

Chapter 8 The DB2 Storage Model 375 8.1 The DB2 Storage Model: The Big Picture 375

8.2 Databases: Logical and Physical Storage of Your Data 377

8.3 Database Partition Groups 384

8.4 Table Spaces 388

8.5 Buffer Pools 406

8.6 Case Study 410

8.7 Summary 412

8.8 Review Questions 412

Chapter 9 Leveraging the Power of SQL 417 9.1 Querying DB2 Data 418

9.2 Modifying Table Data 433

9.3 Selecting from UPDATE, DELETE, or INSERT 434

9.4 The MERGE Statement 436

9.5 Recursive SQL 437

9.6 The UNION, INTERSECT, and EXCEPT Operators 439

9.7 Case Study 441

9.8 Summary 445

9.9 Review Questions 445

Chapter 10 Mastering the DB2 pureXML Support 453 10.1 XML: The Big Picture 454

10.2 pureXML in DB2 478

10.3 Querying XML Data 486

10.4 SQL/XML Publishing Functions 507

10.5 Transforming XML Documents Using XSLT Functions 509

10.6 Inserting XML Data into a DB2 Database 509

10.7 Updating and Deleting XML Data 511

10.8 XML Indexes 514

10.9 XML Schema Support and Validation in DB2 522

10.10 Annotated XML Schema Decomposition 529

10.11 XML Performance Considerations 532

10.12 pureXML Restrictions 533

10.13 Case Study 534

10.14 Summary 538

10.15 Review Questions 538

Chapter 11 Implementing Security 543 11.1 DB2 Security Model: The Big Picture 543

11.2 Authentication 545

11.3 Data Encryption 558

11.4 Administrative Authorities 558

11.5 Database Object Privileges 565

11.6 Label-Based Access Control (LBAC) 583

11.7 Authority and Privilege Metadata 590

11.8 Windows Domain Considerations 594

11.9 Trusted Contexts Security Enhancement 596

11.10 Case Study 598

11.11 Summary 599

11.12 Review Questions 600

Chapter 12 Understanding Concurrency and Locking 603 12.1 DB2 Locking and Concurrency: The Big Picture 603

12.2 Concurrency and Locking Scenarios 604

12.3 DB2 Isolation Levels 607

12.4 Changing Isolation Levels 612

12.5 DB2 Locking 619

12.6 Diagnosing Lock Problems 630

12.7 Techniques to Avoid Locking 643

12.8 Case Study 646

12.9 Summary 647

12.10 Review Questions 647

Chapter 13 Maintaining Data 651 13.1 DB2 Data Movement Utilities: The Big Picture 651

13.2 Data Movement File Formats 653

13.3 The DB2 EXPORT Utility 654

13.4 The DB2 IMPORT Utility 667

13.5 The DB2 Load Utility 676

13.6 The DB2MOVE Utility 697

13.7 The db2relocatedb Utility 700

13.8 Generating Data Definition Language 701

13.9 DB2 Maintenance Utilities 703

13.10 Case Study 715

13.11 Summary 717

13.12 Review Questions 717

Chapter 14 Developing Database Backup and Recovery Solutions 721 14.1 Database Recovery Concepts: The Big Picture 721

14.2 DB2 Transaction Logs 725

14.3 Recovery Terminology 737

14.4 Performing Database and Table Space Backups 738

14.5 Database and Table Space Recovery Using the RESTORE DATABASE Command 746

14.6 Database and Table Space Roll Forward 754

14.7 Recovering a Dropped Table 758

14.8 The Recovery History File 760

14.9 Database Recovery Using the RECOVER DATABASE Command 762

14.10 Rebuild Database Option 764

14.11 Backup Recovery through Online Split Mirroring and Suspended I/O Support 773

14.12 Maintaining High Availability with DB2 782

14.13 The Fault Monitor 799

14.14 Case Study 801

14.15 Summary 805

Chapter 15 The DB2 Process Model 811 15.1 The DB2 Process Model: The Big Picture 811

15.2 Threaded Engine Infrastructure 814

15.3 The DB2 Engine Dispatchable Units 816

15.4 Tuning the Number of EDUs 831

15.5 Monitoring and Tuning the DB2 Agents 833

15.6 The Connection Concentrator 834

15.7 Commonly Seen DB2 Executables 835

15.8 Additional Services/Processes on Windows 836

15.9 Case Study 837

15.10 Summary 838

15.11 Review Questions 839

Chapter 16 The DB2 Memory Model 843 16.1 DB2 Memory Allocation: The Big Picture 843

16.2 Instance-Level Shared Memory 845

16.3 Database-Level Shared Memory 846

16.4 Application-Level Shared Memory 850

16.5 Agent Private Memory 853

16.6 The Memory Model 855

16.7 Case Study 857

16.8 Summary 861

16.9 Review Questions 861

Chapter 17 Database Performance Considerations 865 17.1 Relation Data Performance Fundamentals 866

17.2 System/Server Configuration 866

17.3 The DB2 Configuration Advisor 869

17.4 Configuring the DB2 Instance 877

17.5 Configuring Your Databases 879

17.6 Lack of Proper Maintenance 884

17.7 Automatic Maintenance 888

17.8 The Snapshot Monitor 890

17.9 Event Monitors 893

17.10 The DB2 Optimizer 896

17.11 The Explain Tool and Explain Tables 897

17.12 Using Visual Explain to Examine Access Plans 898

17.13 Workload Management 899

17.14 Case Study 902

17.15 Summary 905

17.16 Review Questions 905

Chapter 18 Diagnosing Problems 909 18.1 Problem Diagnosis: The Big Picture909

18.2 How DB2 Reports Issues 909

18.3 DB2 Error Message Description 911

18.4 DB2 First Failure Data Capture 913

18.5 Receiving E-mail Notifications 919

18.6 Tools for Troubleshooting 921

18.7 Searching for Known Problems 930

18.8 Case Study931

18.9 Summary 934

18.10 Review Questions 935

Appendix A Solutions to the Review Questions 937 Appendix B Use of Uppercase versus Lowercase in DB2 961 Appendix CIBM Servers 965 Appendix D Using the DB2 System Catalog Tables 967Resources 981 Index 987

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