SAP® Certified Development Associate — ABAP® with SAP NetWeaver® 7.02

53 Pages·2012·1.61 MB·English

Puneet Asthana and David Haslam
SAP® Certified Development Associate—
ABAP® with SAP NetWeaver® 7.02
Bonn (cid:2) Boston
Contents at a Glance
PART I General Introduction
1 ABAP Development Certification Track—Overview ..................... 27
2 Courses and Experience .............................................................. 39
PART II Exam Preparation
3 SAP NetWeaver—Overview ........................................................ 49
4 ABAP Workbench Usage ............................................................. 75
5 ABAP Debugger Program Usage .................................................. 109
6 ABAP Types and Data Objects .................................................... 143
7 Internal Table Definition and Use ............................................... 169
8 SQL Statements Including Update Strategies ............................... 205
9 Basic ABAP Programs and Interface Creation .............................. 241
10 ABAP Dictionary ......................................................................... 295
11 Unicode ..................................................................................... 337
12 Classical Screens ......................................................................... 359
13 Selection Screens ........................................................................ 407
14 ABAP Object-Oriented Programming .......................................... 433
15 ALV Grid Control ........................................................................ 471
16 User Interfaces (Web Dynpro) .................................................... 505
17 Class Identification Analysis and Design ...................................... 533
18 Enhancements and Modifications ............................................... 559
19 Table Relationships ..................................................................... 601
7
Contents
Preface .......................................................................................................... 15
Acknowledgments ......................................................................................... 23
PART I: General Introduction
1 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 ....... 35
Professional Examination Specifics ............................................................ 36
Competency Areas .................................................................................... 36
Summary ....................................................................................................... 37
2 Courses and Experience ............................................................ 39
Training Courses for ABAP ............................................................................. 40
Sources of Information .................................................................................. 41
Strategic Understanding ................................................................................ 43
SAP Examination Strategies ........................................................................... 44
General Examination Strategies ..................................................................... 46
Summary ....................................................................................................... 46
PART II: Exam Preparation
3 SAP NetWeaver—Overview ..................................................... 49
Objectives of this Portion of the Test ............................................................ 50
Key Concepts Refresher ................................................................................. 50
SAP Products in a Nutshell ........................................................................ 51
Product Evolution ..................................................................................... 52
SAP NetWeaver Architecture .................................................................... 56
Kernel and Administration Services ........................................................... 58
8 Contents
Software-Oriented View ............................................................................ 59
User-Oriented View .................................................................................. 61
Structure of a Work Process ...................................................................... 63
Important Terminology .................................................................................. 67
Practice Questions ......................................................................................... 68
Practice Question Answers and Explanations ................................................. 70
Take Away ..................................................................................................... 71
Refresher ................................................................................................... 72
Tips ........................................................................................................... 73
Summary ....................................................................................................... 73
4 ABAP Workbench Usage ........................................................... 75
Objectives of this Portion of the Test ............................................................. 76
Key Concepts Refresher ................................................................................. 77
ABAP Workbench ...................................................................................... 77
Repository Browser ................................................................................... 81
Repository Information System .................................................................. 83
Workbench Settings .................................................................................. 85
New ABAP Editor and Workbench Settings ............................................... 86
ABAP Workbench Tools in Detail .............................................................. 90
Enhancement Information System ............................................................. 92
Packages and Their Attributes ................................................................... 95
Transport Organizer ................................................................................... 98
Practice Questions ......................................................................................... 101
Practice Question Answers and Explanations ................................................. 104
Take Away ..................................................................................................... 106
Refresher ................................................................................................... 107
Summary ....................................................................................................... 107
5 ABAP Debugger Program Usage ...............................................109
Objectives of this Portion of the Test ............................................................. 111
Key Concepts Refresher ................................................................................. 111
New and Classic Debugger ........................................................................ 112
New Debugger Tools and UI ..................................................................... 116
Assertions and Breakpoints ........................................................................ 125
New Debugger Customization and Settings ............................................... 127
Important Terminology .................................................................................. 133
Practice Questions ......................................................................................... 134
Contents 9
Practice Question Answers and Explanations ................................................. 137
Take Away .................................................................................................... 139
Refresher .................................................................................................. 140
Tips ........................................................................................................... 140
Summary ....................................................................................................... 141
6 ABAP Types and Data Objects ................................................. 143
Objectives of this Portion of the Test ............................................................ 145
Key Concepts Refresher ................................................................................. 145
ABAP Types and Data Objects .................................................................. 145
ABAP Data Types ...................................................................................... 152
Local Data Types ....................................................................................... 156
Global Data Types ..................................................................................... 158
Data Object Visibility ................................................................................ 160
Important Terminology ................................................................................. 161
Practice Questions ........................................................................................ 162
Practice Question Answers and Explanations ................................................. 165
Take Away .................................................................................................... 166
Refresher .................................................................................................. 167
Summary ....................................................................................................... 167
7 Internal Table Definition and Use ............................................ 169
Objectives of this Portion of the Test ............................................................ 170
Key Concepts Refresher ................................................................................. 171
Internal Table Definition and Use .............................................................. 171
Defining ABAP Internal Tables .................................................................. 176
Using ABAP Internal Tables ....................................................................... 184
Important Terminology ................................................................................. 197
Practice Questions ........................................................................................ 198
Practice Question Answers and Explanations ................................................. 201
Take Away .................................................................................................... 203
Refresher .................................................................................................. 203
Summary ....................................................................................................... 204
8 SQL Statements Including Update Strategies ......................... 205
Objectives of this Portion of the Test ............................................................ 207
Key Concepts Refresher ................................................................................. 207
10 Contents
Data Modeling .......................................................................................... 207
Data Retrieval ........................................................................................... 210
Performance of Database Access ............................................................... 213
Logical Units of Work ................................................................................ 217
Enqueue and Dequeue .............................................................................. 219
Inline Updates ........................................................................................... 224
Perform on Commit ................................................................................... 224
Update Modules ....................................................................................... 225
Practice Questions ......................................................................................... 231
Practice Question Answers and Explanations ................................................. 235
Take Away ..................................................................................................... 238
Refresher ................................................................................................... 239
Tips ........................................................................................................... 239
Summary ....................................................................................................... 240
9 Basic ABAP Programs and Interface Creation ..........................241
Objectives of this Portion of the Test ............................................................. 243
Key Concepts Refresher ................................................................................. 243
Organizing Development ........................................................................... 244
ABAP Programming Overview ................................................................... 245
ABAP Event Blocks .................................................................................... 252
Basic ABAP Statements .............................................................................. 256
ABAP Subroutine ....................................................................................... 260
ABAP Function Module ............................................................................. 261
ABAP Classes and Methods ....................................................................... 265
ABAP Selection Screen .............................................................................. 268
Authorization Checks ................................................................................ 271
ABAP Dynpros .......................................................................................... 273
Dialog Messages ........................................................................................ 275
Important Terminology .................................................................................. 281
Practice Questions ......................................................................................... 283
Practice Question Answers and Explanations ................................................. 288
Take Away ..................................................................................................... 291
Refresher ................................................................................................... 292
Tips ........................................................................................................... 293
Summary ....................................................................................................... 293
Contents 11
10 ABAP Dictionary ....................................................................... 295
Objectives of this Portion of the Test ............................................................ 296
Key Concepts Refresher ................................................................................. 297
Overview .................................................................................................. 297
Basic and Complex Data Types .................................................................. 299
Transparent Tables .................................................................................... 313
Search Helps ............................................................................................. 319
Append Search Helps ................................................................................ 323
Lock Objects ............................................................................................. 323
View Types and Maintenance ................................................................... 326
Important Terminology ................................................................................. 329
Practice Questions ........................................................................................ 329
Practice Question Answers and Explanations ................................................. 333
Take Away .................................................................................................... 334
Refresher .................................................................................................. 335
Summary ....................................................................................................... 336
11 Unicode ..................................................................................... 337
Objectives of this Portion of the Test ............................................................ 339
Key Concepts Refresher ................................................................................. 339
Unicode Compliance ................................................................................. 340
Unicode Tools ........................................................................................... 341
Important Terminology ................................................................................. 352
Practice Questions ........................................................................................ 352
Practice Question Answers and Explanations ................................................. 355
Take Away .................................................................................................... 356
Refresher .................................................................................................. 356
Tips ........................................................................................................... 357
Summary ....................................................................................................... 357
12 Classical Screens ....................................................................... 359
Objectives of this Portion of the Test ............................................................ 361
Key Concepts Refresher ................................................................................. 361
Screen Design ........................................................................................... 362
GUI Status and Title Design ...................................................................... 382
Table Control Programming ...................................................................... 391
Important Terminology ................................................................................. 400
12 Contents
Practice Questions ......................................................................................... 400
Practice Question Answers and Explanations ................................................. 403
Take Away ..................................................................................................... 405
Refresher ................................................................................................... 405
Summary ....................................................................................................... 406
13 Selection Screens ......................................................................407
Objectives of this Portion of the Test ............................................................. 408
Key Concepts Refresher ................................................................................. 409
Selection Screens ....................................................................................... 409
Selection Screen Design ............................................................................ 409
Important Terminology .................................................................................. 426
Practice Questions ......................................................................................... 427
Practice Question Answers and Explanations ................................................. 429
Take Away ..................................................................................................... 430
Refresher ................................................................................................... 431
Summary ....................................................................................................... 431
14 ABAP Object-Oriented Programming .......................................433
Objectives of this Portion of the Test ............................................................. 435
Key Concepts Refresher ................................................................................. 435
Object-Oriented Programming Concepts ................................................... 435
ABAP Objects ............................................................................................ 437
ABAP Class ................................................................................................ 437
Objects ..................................................................................................... 446
Attributes .................................................................................................. 446
Methods ................................................................................................... 449
Events ....................................................................................................... 459
Practice Questions ......................................................................................... 464
Practice Question Answers and Explanations ................................................. 466
Take Away ..................................................................................................... 469
Refresher ................................................................................................... 469
Summary ....................................................................................................... 470
15 ALV Grid Control .......................................................................471
Objectives of this Portion of the Test ............................................................. 472
Key Concepts Refresher ................................................................................. 473
Overview of ALV Programming ................................................................. 474
Contents 13
ALV Grid Programming (CL_GUI_ALV_GRID) ............................................ 474
ALV Object Model .................................................................................... 485
Important Terminology ................................................................................. 496
Practice Questions ........................................................................................ 498
Practice Question Answers and Explanations ................................................. 501
Take Away .................................................................................................... 502
Refresher .................................................................................................. 503
Tips ........................................................................................................... 503
Summary ....................................................................................................... 504
16 User Interfaces (Web Dynpro) .................................................. 505
Objectives of this Portion of the Test ............................................................ 506
Key Concepts Refresher ................................................................................. 507
Web Dynpro Design ................................................................................. 507
Controllers ................................................................................................ 513
Contexts ................................................................................................... 515
Events ....................................................................................................... 515
Web Dynpro Application .......................................................................... 516
Graphical Elements ................................................................................... 517
Important Terminology ................................................................................. 523
Practice Questions ........................................................................................ 525
Practice Question Answers and Explanations ................................................. 528
Take Away .................................................................................................... 530
Refresher .................................................................................................. 530
Tips ........................................................................................................... 530
Summary ....................................................................................................... 531
17 Class Identification Analysis and Design ................................. 533
Objectives of this Portion of the Test ............................................................ 534
Key Concepts Refresher ................................................................................. 535
Functional Methods .................................................................................. 535
Inheritance ............................................................................................... 540
Interfaces .................................................................................................. 546
Class Identification .................................................................................... 549
Important Terminology ................................................................................. 551
Practice Questions ........................................................................................ 552
Practice Question Answers and Explanations ................................................. 556
Take Away .................................................................................................... 557
14 Contents
Refresher ................................................................................................... 558
Tips ........................................................................................................... 558
Summary ....................................................................................................... 558
18 Enhancements and Modifications ............................................559
Objectives of this Portion of the Test ............................................................. 560
Key Concepts Refresher ................................................................................. 561
Enhancing SAP Applications ...................................................................... 561
Enhancement Techniques .......................................................................... 562
Enhancement Framework .......................................................................... 588
Modification ............................................................................................. 591
Practice Questions ......................................................................................... 593
Practice Question Answers and Explanations ................................................. 596
Take Away ..................................................................................................... 598
Refresher ................................................................................................... 599
Summary ....................................................................................................... 600
19 Table Relationships ...................................................................601
Objectives of this Portion of the Test ............................................................. 602
Key Concepts Refresher ................................................................................. 603
Table Relationships ................................................................................... 603
Value Help ................................................................................................ 611
Practice Questions ......................................................................................... 616
Practice Question Answers and Explanations ................................................. 619
Take Away ..................................................................................................... 621
Refresher ................................................................................................... 621
Tips ........................................................................................................... 622
Summary ....................................................................................................... 622
The Authors .................................................................................................... 623
Index .............................................................................................................. 625