ABAP 7.4 Certification Guide : SAP Certified Development Associate

667 Pages·2016·25.53 MB·English

by  Puneet Asthana, David Haslam

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Puneet Asthana, David Haslam
®
ABAP 7.4 Certification Guide—
®
SAP Certified Development Associate
Dear Reader,
I don't know about you, but I've always hated tests. When a test was looming, I'd
go through stages of dread, procrastination, dread again, and frantic cramming.
And the entire time, I'd be worried that I was spending my time focusing on the
wrong material. Sound familiar?
At SAP PRESS, we don't want you to suffer the same dread and anxiety as you
approach your ABAP Certified Development Associate test. We've enlisted two
expert SAP employees and authors to write this guide, which comes packed with
helpful information about what you'll see on the test, test-taking strategies, discus-
sions on the topics that are covered, and practice questions and answers that will
help you feel confident in your knowledge. Updated through the years, two previ-
ous editions of this book have helped hundreds of test takers succeed. This edition
includes new information for SAP NetWeaver 7.4, additional test questions, and
more. We're confident that this book will prepare you for success, and make study-
ing much easier. Now take a deep breath, and dive right in!
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The Library of Congress has cataloged the printed edition as follows:
Asthana, Puneet.
SAP certifed development associate--ABAP with SAP NetWeaver 7.4 / Puneet Asthana. --
3rd edition.
pages cm
Includes index.
ISBN 978-1-4932-1212-5 (print : alk. paper) -- ISBN 1-4932-1212-5 (print : alk. paper) --
ISBN 978-1-4932-1213-2 (ebook)
-- ISBN 978-1-4932-1214-9 (print and ebook : alk. paper) 1. SAP NetWeaver--Examinations
--Study guides. 2. Web site development--Examinations--Study guides. 3. ABAP/4 (Computer
program language)--Examinations--Study guides. I. Title.
TK5105.8885.S24A88 2015
006.7’6--dc23
2015007508
ISBN 978-1-4932-1215-5 (print)
ISBN 978-1-4932-1213-2 (e-book)
ISBN 978-1-4932-1214-9 (print and e-book)
© 2015 by Rheinwerk Publishing, Inc., Boston (MA)
3rd edition 2015
7
Contents
Acknowledgments ......................................................................................... 15
Preface .......................................................................................................... 17
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 .................................................................................... 32
Summary ....................................................................................................... 35
2 Courses and Experience ............................................................ 37
Training Courses for ABAP ............................................................................. 38
Sources of Information .................................................................................. 39
Strategic Understanding ................................................................................ 41
SAP Examination Strategies ........................................................................... 42
General Examination Strategies ..................................................................... 44
Summary ....................................................................................................... 45
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 .................................................................... 57
Kernel and Administration Services ........................................................... 59
Software-Oriented View ........................................................................... 60
User-Oriented View .................................................................................. 63
Structure of a Work Process ...................................................................... 65
8 Contents
Important Terminology .................................................................................. 69
Practice Questions ......................................................................................... 70
Practice Question Answers and Explanations ................................................. 72
Takeaway ...................................................................................................... 73
Refresher ................................................................................................... 74
Tips ........................................................................................................... 75
Summary ....................................................................................................... 75
4 ABAP Workbench Usage ........................................................... 77
Objectives of this Portion of the Test ............................................................. 78
Key Concepts Refresher ................................................................................. 79
ABAP Workbench ...................................................................................... 79
Repository Browser ................................................................................... 85
Repository Information System .................................................................. 86
Workbench Settings .................................................................................. 89
ABAP Editor and Workbench Settings ....................................................... 90
ABAP Workbench Tools in Detail .............................................................. 94
Enhancement Information System ............................................................. 96
Packages and Their Attributes ................................................................... 99
Transport Organizer ................................................................................... 102
Practice Questions ......................................................................................... 105
Practice Question Answers and Explanations ................................................. 108
Takeaway ...................................................................................................... 111
Refresher ................................................................................................... 111
Summary ....................................................................................................... 112
5 ABAP Debugger Program Usage ............................................... 113
Objectives of this Portion of the Test ............................................................. 115
Key Concepts Refresher ................................................................................. 115
New and Classic Debugger ........................................................................ 116
New Debugger Tools and UI ..................................................................... 120
Assertions and Breakpoints ........................................................................ 130
New Debugger Customization and Settings ............................................... 131
Important Terminology .................................................................................. 137
Practice Questions ......................................................................................... 138
Practice Question Answers and Explanations ................................................. 141
Takeaway ...................................................................................................... 143
Refresher ................................................................................................... 144
Contents 9
Tips ........................................................................................................... 145
Summary ....................................................................................................... 145
6 ABAP Types and Data Objects ................................................. 147
Objectives of this Portion of the Test ............................................................ 149
Key Concepts Refresher ................................................................................. 149
ABAP Types and Data Objects .................................................................. 150
ABAP Data Types ...................................................................................... 157
Local Data Types ....................................................................................... 162
Global Data Types ..................................................................................... 165
Data Object Visibility ................................................................................ 167
Important Terminology ................................................................................. 168
Practice Questions ........................................................................................ 168
Practice Question Answers and Explanations ................................................. 171
Takeaway ...................................................................................................... 173
Refresher .................................................................................................. 173
Summary ....................................................................................................... 174
7 Internal Table Definition and Use ............................................ 175
Objectives of this Portion of the Test ............................................................ 176
Key Concepts Refresher ................................................................................. 177
Internal Table Definition and Use .............................................................. 177
Defining ABAP Internal Tables .................................................................. 182
Using ABAP Internal Tables ....................................................................... 191
Important Terminology ................................................................................. 209
Practice Questions ........................................................................................ 209
Practice Question Answers and Explanations ................................................. 213
Takeaway ...................................................................................................... 215
Refresher .................................................................................................. 215
Summary ....................................................................................................... 216
8 SQL Statements Including Update Strategies ......................... 217
Objectives of this Portion of the Test ............................................................ 219
Key Concepts Refresher ................................................................................. 219
Data Modeling .......................................................................................... 219
Data Retrieval ........................................................................................... 222
Performance of Database Access ............................................................... 225
10 Contents
Logical Units of Work ................................................................................ 229
Enqueue and Dequeue .............................................................................. 231
Inline Updates ........................................................................................... 236
Perform on Commit ................................................................................... 237
Update Modules ....................................................................................... 237
Additional Functionality as of SAP NetWeaver 7.40 .................................. 243
Practice Questions ......................................................................................... 246
Practice Question Answers and Explanations ................................................. 250
Takeaway ...................................................................................................... 254
Refresher ................................................................................................... 254
Tips ........................................................................................................... 254
Summary ....................................................................................................... 255
9 Basic ABAP Programs and Interface Creation .......................... 257
Objectives of this Portion of the Test ............................................................. 259
Key Concepts Refresher ................................................................................. 259
Organizing Development ........................................................................... 260
ABAP Programming Overview ................................................................... 261
ABAP Event Blocks .................................................................................... 268
Basic ABAP Statements .............................................................................. 273
ABAP Subroutine ....................................................................................... 276
ABAP Function Module ............................................................................. 278
ABAP Classes and Methods ....................................................................... 282
ABAP Selection Screen .............................................................................. 285
Authorization Checks ................................................................................ 287
ABAP Dynpros .......................................................................................... 289
Dialog Messages ........................................................................................ 292
Important Terminology .................................................................................. 298
Practice Questions ......................................................................................... 300
Practice Question Answers and Explanations ................................................. 305
Takeaway ...................................................................................................... 308
Refresher ................................................................................................... 309
Tips ........................................................................................................... 310
Summary ....................................................................................................... 311
10 ABAP Dictionary ........................................................................ 313
Objectives of this Portion of the Test ............................................................. 314