For Exam C_TAW12_70
This book gives you the tools and understanding you need to be successful on your way to becoming an SAP Certified Development Associate in ABAP.

Key Objective Coverage
Learn the topics, terminology, and definitions as they’ll be presented on the exam.

Practice Questions and Answers
Get familiar with the different types of exam questions, and find tips and strategies for answering them correctly.

Real-World Scenarios
Understand how SAP solutions are used in everyday business scenarios.

Take-Aways and Test Tips
Learn how to improve your odds of doing well in each section of the exam.

Exam Topics for C_TAW12_70

• SAP NetWeaver Overview
• ABAP Workbench, ABAP Debugger, ABAP Dictionary
• ABAP Types and Data Objects
• Internal Tables, Table Relationships
• SQL Statements, ALV Grid Control, Unicode
• Classical and Selection Screens
• ABAP Object-Oriented Programming
• User Interfaces and Interface Creation
• Class Identifi cation Analysis and Design
• Enhancements and Modifications

About the Author(s)

Puneet Asthana and David Haslam are both recognized experts in ABAP development, who generously share their experience and knowledge with you to help you prepare for the SAP certification examination.

Table of Contents

Acknowledgments ... 15

Preface ... 17
... Structure of This Book ... 18
... Glimpse into the Exam Structure ... 21
... Practice Questions ... 22
... Summary ... 24

ABAP Development Certification Track — Overview ... 27
... Certification Exam Scoring Changes ... 28
... ... Certification Levels ... 29
... ... Advanced Certification Levels ... 31
... Becoming an SAP Certified ABAP Development Associate — Overview ... 32
... ... Associate Examination Specifics ... 32
... ... Competency Areas ... 33
... Becoming an SAP Certified ABAP Development Professional — Overview ... 36
... ... SAP Certified Development Professional — ABAP System Integration — SAP NetWeaver 7.0 ... 36
... ... Professional Examination Specifics ... 37
... ... Competency Areas ... 37
... ... SAP Certified Development Professional — ABAP User Interfaces — SAP NetWeaver 7.0 ... 40
... ... Professional Examination Specifics ... 40
... ... Competency Areas ... 40
... ... Summary ... 43

Courses and Experience ... 45
... Training Courses for ABAP ... 46
... Sources of Information ... 47
... Strategic Understanding ... 48
... SAP Examination Strategies ... 50
... General Examination Strategies ... 52
... Summary ... 52

SAP NetWeaver — Overview ... 55
... Objectives of this Portion of the Test ... 56
... Key Concepts Refresher ... 56
... ... SAP Products in a Nutshell ... 57
... ... Product Evolution ... 58
... ... SAP NetWeaver Architecture ... 62
... ... Kernel and Administration Services ... 63
... ... Software-Oriented View ... 64
... ... User-Oriented View ... 66
... ... Structure of a Work Process ... 69
... Important Terminology ... 73
... Practice Questions ... 73
... Practice Question Answers and Explanations ... 75
... Take Away ... 76
... ... Refresher ... 76
... ... Tips ... 78
... Summary ... 78

ABAP Workbench Usage ... 79
... Objectives of this Portion of the Test ... 80
... Key Concepts Refresher ... 81
... ... ABAP Workbench ... 81
... ... Repository Browser ... 85
... ... Repository Information System ... 86
... ... Workbench Settings ... 88
... ... New ABAP Editor and Workbench Settings ... 89
... ... ABAP Workbench Tools in Detail ... 93
... ... Enhancement Information System ... 95
... ... Packages and their Attributes ... 97
... ... Transport Organizer ... 101
... Practice Questions ... 104
... Practice Question Answers and Explanations ... 107
... Take Away ... 109
... ... Refresher ... 109
... Summary ... 110

ABAP Debugger Program Usage ... 111
... Objectives of this Portion of the Test ... 113
... Key Concepts Refresher ... 113
... ... New and Classic Debugger ... 114
... ... New Debugger Tools and UI ... 118
... ... Assertions and Breakpoints ... 126
... ... New Debugger Customization and Settings ... 128
... Important Terminology ... 130
... Practice Questions ... 130
... Practice Question Answers and Explanations ... 133
... Take Away ... 135
... ... Refresher ... 135
... ... Tips ... 136
... Summary ... 136

ABAP Types and Data Objects ... 137
... Objectives of this Portion of the Test ... 139
... Key Concepts Refresher ... 139
... ... ABAP Types and Data Objects ... 139
... ... ABAP Data Types ... 146
... ... Local Data Types ... 149
... ... Global Data Types ... 152
... ... Data Object Visibility ... 154
... Important Terminology ... 155
... Practice Questions ... 155
... Practice Question Answers and Explanations ... 158
... Take Away ... 159
... ... Refresher ... 159
... Summary ... 160

Internal Table Definition and Use ... 161
... Objectives of this Portion of the Test ... 162
... Key Concepts Refresher ... 163
... ... Internal Table Definition and Use ... 163
... ... Defining ABAP Internal tables ... 167
... ... Using ABAP Internal Tables ... 176
... Important Terminology ... 189
... Practice Questions ... 189
... Practice Question Answers and Explanations ... 192
... Take Away ... 194
... ... Refresher ... 194
... Summary ... 195

SQL Statements Including Update Strategies ... 197
... Objectives of this Portion of the Test ... 199
... Key Concepts Refresher ... 199
... ... Data Modeling ... 199
... ... Data Retrieval ... 202
... ... Performance of Database Access ... 205
... ... Logical Units of Work ... 208
... ... Enqueue and Dequeue ... 210
... ... Inline Updates ... 216
... ... Perform on Commit ... 216
... ... Update Modules ... 217
... Practice Questions ... 222
... Practice Question Answers and Explanations ... 226
... Take Away ... 229
... Refresher ... 229
... ... Tips ... 230
... ... Summary ... 230

Basic ABAP Programs and Interface Creation ... 231
... Objectives of this Portion of the Test ... 233
... Key Concepts Refresher ... 233
... ... Organizing Development ... 234
... ... ABAP Programming Overview ... 235
... ... ABAP Event Blocks ... 242
... ... Basic ABAP Statements ... 246
... ... ABAP Subroutine ... 249
... ... ABAP Function Module ... 251
... ... ABAP Classes and Methods ... 255
... ... ABAP Selection Screen ... 258
... ... Authorization Checks ... 260
... ... ABAP Dynpros ... 262
... ... Dialog Messages ... 265
... Important Terminology ... 271
... Practice Questions ... 272
... Practice Question Answers and Explanations ... 277
... Take Away ... 280
... ... Refresher ... 281
... ... Tips ... 282
... Summary ... 282

ABAP Dictionary ... 283
... Objectives of this Portion of the Test ... 284
... Key Concepts Refresher ... 285
... ... Overview ... 285
... ... Basic and Complex Data Types ... 287
... ... Transparent Tables ... 300
... ... Search Helps ... 305
... ... Append Search Helps ... 309
... ... Lock Objects ... 309
... ... View Types and Maintenance ... 311
... Important Terminology ... 315
... Practice Questions ... 316
... Practice Question Answers and Explanations ... 318
... Take Away ... 320
... ... Refresher ... 320
... Summary ... 321

Unicode ... 323
... Objectives of this Portion of the Test ... 325
... Key Concepts Refresher ... 325
... ... Unicode Compliance ... 326
... ... Unicode Tools ... 327
... Important Terminology ... 339
... Practice Questions ... 339
... Practice Question Answers and Explanations ... 340
... Take Away ... 341
... ... Refresher ... 342
... ... Tips ... 342
... Summary ... 342

Classical Screens ... 343
... Objectives of this Portion of the Test ... 345
... Key Concepts Refresher ... 345
... ... Screen Design ... 346
... ... GUI Status and Title Design ... 366
... ... Table Control Programming ... 375
... Important Terminology ... 383
... Practice Questions ... 383
... Practice Question Answers and Explanations ... 386
... Take Away ... 387
... ... Refresher ... 388
... Summary ... 389

Selection Screens ... 391
... Objectives of this Portion of the Test ... 392
... Key Concepts Refresher ... 392
... ... Selection Screens ... 393
... ... Selection Screen Design ... 393
... Important Terminology ... 410
... Practice Questions ... 410
... Practice Question Answers and Explanations ... 412
... Take Away ... 414
... ... Refresher ... 414
... Summary ... 415

ABAP Object-Oriented Programming ... 417
... Objectives of this Portion of the Test ... 419
... Key Concepts Refresher ... 419
... ... Object-Oriented Programming Concepts ... 419
... ... ABAP Objects ... 421
... ... ABAP Class ... 421
... ... Objects ... 429
... ... Attributes ... 430
... ... Methods ... 432
... ... Events ... 442
... Practice Questions ... 447
... Practice Question Answers and Explanations ... 449
... Take Away ... 451
... ... Refresher ... 451
... Summary ... 452

ALV Grid Control ... 453
... Objectives of this Portion of the Test ... 454
... Key Concepts Refresher ... 455
... Overview of ALV Programming ... 456
... ... ALV Grid Programming (CL_GUI_ALV_GRID) ... 456
... ... ALV Object Model ... 467
... Important Terminology ... 477
... Practice Questions ... 480
... Practice Question Answers and Explanations ... 482
... Take Away ... 483
... ... Refresher ... 483
... ... Tips ... 484
... Summary ... 484

User Interfaces (Web Dynpro) ... 485
... Objectives of this Portion of the Test ... 486
... Key Concepts Refresher ... 487
... ... Web Dynpro Design ... 487
... ... Controllers ... 492
... ... Contexts ... 495
... ... Events ... 495
... ... Web Dynpro Application ... 496
... ... Graphical Elements ... 497
... Important Terminology ... 503
... Practice Questions ... 505
... Practice Question Answers and Explanations ... 507
... Take Away ... 508
... ... Refresher ... 509
... ... Tips ... 509
... Summary ... 509

Class Identification Analysis and Design ... 511
... Objectives of this Portion of the Test ... 512
... Key Concepts Refresher ... 513
... ... Functional Methods ... 513
... ... Inheritance ... 518
... ... Interfaces ... 524
... ... Class Identification ... 526
... Important Terminology ... 528
... Practice Questions ... 529
... Practice Question Answers and Explanations ... 532
... Take Away ... 534
... ... Refresher ... 534
... ... Tips ... 535
... Summary ... 535

Enhancements and Modifications ... 537
... Objectives of this Portion of the Test ... 538
... Key Concepts Refresher ... 539
... ... Enhancing SAP Applications ... 539
... ... Enhancement Techniques ... 540
... ... Enhancement Framework ... 564
... ... Modification ... 567
... Practice Questions ... 569
... Practice Question Answers and Explanations ... 572
... Take Away ... 574
... ... Refresher ... 574
... Summary ... 575

Table Relationships ... 577
... Objectives of this Portion of the Test ... 578
... Key Concepts Refresher ... 579
... ... Table Relationships ... 579
... ... Value Help ... 587
... Practice Questions ... 591
... Practice Question Answers and Explanations ... 594
... Take Away ... 595
... ... Refresher ... 595
... ... Tips ... 596
... Summary ... 596

The Authors ... 597