abap pa - BC400_Col63.pdf

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toc

Icons in Body Text

Flow of an ABAP Program

Lesson:

System Architecture and ABAP Program

Process Flow of a Program with Selection Screen and List

Topic Overview

Unit 1

Introduction to the ABAP Workbench

Lesson:

Introduction to the Repository

Search Tools in the Repository

Working With the Object Navigator

Lesson:

Organizing Developments

Developing an ABAP Program

Introduction to the ABAP Programming Language

Is typed

The ABAP Editor

Activating Programs

Creating Transactions

Closing Development Projects

Exercise 1: Organizing Developments

Exercise 2: Developing a Simple ABAP Program

Exercise 3: Create Transactions

Basic ABAP Language Elements

Lesson:

Data Types and Data Objects

Using Data Types

ABAP Standard Types

Local Data Types

Global Data Types

Definition of Variable Data Objects

Literals, Constants and Text Symbols

Comparison: Local and Global Data Types

Basic ABAP Statements

Value Assignments

Calculations and Arithmetic Expressions

Conditional Branches and Logical Expressions

Loops

System Fields

Dialog Messages

Working with the ABAP Debugger

Exercise 4: Basic ABAP Statements

Exercise 5: Debugging Statements on Elementary Data Objects

Modularization

Lesson:

Modularization Technique

Local Program Modularization

Global Modularization

Encapsulating Data

Data Transports, Parameters and Interface

Lesson:

Internal Program Modularization with Subroutines

Parameter Definition for Subroutines

Local and Global Data Objects

Calling Subroutines

Modularization Units in the Debugger

Exercise 6: Subroutines

Lesson:

Working with Function Modules

Searching for Function Modules

Function Module Interface

Documentation and Testing

Calling Function Modules

Exception Handling

Creating Function Groups and Function Modules

Creating Function Groups

Creating Function Modules

Working with BAPIs

GetList

Exercise 7: Using a Function Module

Exercise 8: Creating a Function Group

Exercise 9: Creating and Using a Function Module

Lesson:

Principles of Object-Oriented Programming

Classes, Attributes, and Methods

Encapsulating Data, Public and Private Components

Multiple Instantiation of Classes

Instance Components and Static Components

Using Methods of Global Classes

Attributes of Global Classes

Methods and Their Signature

Documentation and Testing

Calling Static Methods

Exception Handling

Handling Classic Exceptions

Handling Class-Based Exceptions

Generating Instances and Calling Instance Methods

Creating Global Classes and Static Methods

Creating Global Classes

Creating a Static Method

Exercise 10: Using Global Static Methods

Exercise 11: Creating Global Classes

Exercise 12: Creating and Using Global Static Methods

Lesson:

Defining and Using Local Classes

Complex Data Objects

Lesson:

Working with Structures

Exercise 13: Working with Structures

Lesson:

Working with Internal Tables

Exercise 14: Working with Internal Tables

Data Modeling and Data Retrieval

Lesson:

Data Modeling

Transparent Tables

Exercise 15: Analyzing Transparent Tables in the ABAP Dictionary

Lesson:

Data Retrieval

Performance Aspects with Database Access

Secondary Index

SAP Table Buffer

Reading from Several Database Tables

Database Change Accesses (Preview)

Exercise 16: Data Retrieval by Single Record Access

Exercise 17: Data Retrieval Using a SELECT Loop

Exercise 18: (Optional) Data Retrieval by Mass Access (Array Fet

Lesson:

Authorization Checks

Exercise 19: Authorization Check

User dialogs

Lesson:

The Screen

Screens, Pushbuttons and Navigation

Screens, Creating Input/Output Fields

Data Transports Between the Program and the Screen

Exercise 20: Creating Screens and Dynamic Next Screen Processing

Exercise 21: Screen – Creating Input/Output Fields

Exercise 22: Screens – Data Transport

Lesson:

ABAP Web Dynpro: Properties and Programming Model

Elements of the ABAP Web Dynpro

Web Dynpro, Pushbuttons and Navigation

Creating a Web Dynpro Component

Creating Web Dynpro Views and Embedding them in the Window

Setting up Navigation Between Web Dynpro Views

Creating Pushbuttons and Triggering Navigation

Creating a Web Dynpro Application

Web Dynpro, Layout and Data Transport

Creating a Web Dynpro Service Call and Generating the Controller

A service method (name begins with “ EXECUTE_ ” )

Setting up Context Mapping

Creating Input/Output Fields and Setting up Data Binding

Calling the Service Method for Data Retrieval

Exercise 23: Web Dynpro:Navigation

Exercise 24: Web Dynpro: Data Transport and Layout

Lesson:

ABAP List

Selection Screen

Advantages of Selection Screens

Input Options on Selection Screens

ABAP Events

Event Block Characteristics

The INITIALIZATION Event

The AT SELECTION-SCREEN Event

Other ABAP Events

Exercise 25: Selection Screen and Classic ABAP List

Task 1:

Exercise 26: ABAP Events

Lesson:

The SAP List Viewer

Exercise 27: Displaying an Internal Table with the SAP List View

Tools for Program Analysis

Lesson:

Introduction

Calling the Code Inspector

Defining Check Variants, Object Sets and Inspections

Adjusting the SAP Standard Software (Overview)

Lesson:

Basic Terms and Options of SAP Software Adjustment

Enhancement Types

Append structure

BC400 Introduction to the ABAP Workbench SAP NetWeaver Date Training Center Instructors Education Website Participant Handbook Course Version: 63 CourseDuration:5Days MaterialNumber:50087597 An SAP course - use it to learn, reference it for work

Copyright Copyright ' 2008 SAP AG. All rights reserved. No part of this publication may be reproduced or transmitted in any form or for any purpose without the express permission of SAP AG. The information contained herein may be changed without prior notice. Some software products marketed by SAP AG and its distributors contain proprietary software components of other software vendors. Trademarks Microsoftﬁ, WINDOWSﬁ, NTﬁ, EXCELﬁ, Wordﬁ, PowerPointﬁ and SQL Serverﬁ are registered trademarks of Microsoft Corporation. IBMﬁ, DB2ﬁ, OS/2ﬁ, DB2/6000ﬁ, Parallel Sysplexﬁ, MVS/ESAﬁ, RS/6000ﬁ, AIXﬁ, S/390ﬁ, AS/400ﬁ, OS/390ﬁ, and OS/400ﬁ are registered trademarks of IBM Corporation. ORACLEﬁ is a registered trademark of ORACLE Corporation. INFORMIXﬁ-OnLine for SAP and INFORMIXﬁ Dynamic ServerTM are registered trademarks of Informix Software Incorporated. UNIXﬁ, X/Openﬁ, OSF/1ﬁ, and Motifﬁ are registered trademarks of the Open Group. Citrixﬁ, the Citrix logo, ICAﬁ, Program Neighborhoodﬁ, MetaFrameﬁ, WinFrameﬁ, VideoFrameﬁ, MultiWinﬁ and other Citrix product names referenced herein are trademarks of Citrix Systems, Inc. HTML, DHTML, XML, XHTML are trademarks or registered trademarks of W3Cﬁ, World Wide Web Consortium, Massachusetts Institute of Technology. JAVAﬁ is a registered trademark of Sun Microsystems, Inc. JAVASCRIPTﬁ is a registered trademark of Sun Microsystems, Inc., used under license for technology invented and implemented by Netscape. SAP, SAP Logo, R/2, RIVA, R/3, SAP ArchiveLink, SAP Business Workflow, WebFlow, SAP EarlyWatch, BAPI, SAPPHIRE, Management Cockpit, mySAP.com Logo and mySAP.com are trademarks or registered trademarks of SAP AG in Germany and in several other countries all over the world. All other products mentioned are trademarks or registered trademarks of their respective companies. Disclaimer THESE MATERIALS ARE PROVIDED BY SAP ON AN "AS IS" BASIS, AND SAP EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES, EXPRESS OR APPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THESE MATERIALS AND THE SERVICE, INFORMATION, TEXT, GRAPHICS, LINKS, OR ANY OTHER MATERIALS AND PRODUCTS CONTAINED HEREIN. IN NO EVENT SHALL SAP BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES OF ANY KIND WHATSOEVER, INCLUDING WITHOUT LIMITATION LOST REVENUES OR LOST PROFITS, WHICH MAY RESULT FROM THE USE OF THESE MATERIALS OR INCLUDED SOFTWARE COMPONENTS. g200849105411

About This Handbook This handbook is intended to complement the instructor-led presentation of this course, and serve as a source of reference. It is not suitable for self-study. Typographic Conventions American English is the standard used in this handbook. The following typographic conventions are also used. Type Style Example text Example text EXAMPLE TEXT Example text Example text Description Words or characters that appear on the screen. These include field names, screen titles, pushbuttons as well as menu names, paths, and options. Also used for cross-references to other documentation both internal (in this documentation) and external (in other locations, such as SAPNet). Emphasized words or phrases in body text, titles of graphics, and tables Names of elements in the system. These include report names, program names, transaction codes, table names, and individual key words of a programming language, when surrounded by body text, for example SELECT and INCLUDE. Screen output. This includes file and directory names and their paths, messages, names of variables and parameters, and passages of the source text of a program. Exact user entry. These are words and characters that you enter in the system exactly as they appear in the documentation. Variable user entry. Pointed brackets indicate that you replace these words and characters with appropriate entries. 2007/Q4 ' 2008 SAP AG. All rights reserved. iii

About This Handbook BC400 Icons in Body Text The following icons are used in this handbook. Icon Meaning For more information, tips, or background Note or further explanation of previous point Exception or caution Procedures Indicates that the item is displayed in the instructor’s presentation. iv ' 2008 SAP AG. All rights reserved. 2007/Q4

Contents Course Overview ............................................................................. vii Course Goals.................................................................................vii Course Objectives ...........................................................................vii Unit 1: Flow of an ABAP Program ..........................................................1 System Architecture and ABAP Programs ................................................2 Unit 2: Introduction to the ABAP Workbench.......................................... 19 Repository and Object Navigator ......................................................... 20 Developing Programs and Organizing Developments ................................. 31 Unit 3: Basic ABAP Language Elements................................................ 67 Working with Elementary Data Objects.................................................. 68 Unit 4: Modularization ...................................................................... 111 Modularization - Basics and Overview.................................................. 113 Modularization with Subroutines.........................................................120 Modularization with Function Modules..................................................142 Modularization with Methods of Global Classes.......................................178 Modularization with Methods of Local Classes (Preview) ............................208 Unit 5: Complex Data Objects ............................................................219 Working with Structures...................................................................220 Working with Internal Tables .............................................................232 Unit 6: Data Modeling and Data Retrieval..............................................265 Data Modeling and Transparent Tables in the ABAP Dictionary ....................266 Reading Database Tables ................................................................282 Authorization Check .......................................................................324 Unit 7: User dialogs.........................................................................345 Screen.......................................................................................347 ABAP Web Dynpro ........................................................................398 Classic ABAP Reports ....................................................................436 Displaying Tables with the SAP List Viewer............................................469 2007/Q4 ' 2008 SAP AG. All rights reserved. v

Contents BC400 Unit 8: Tools for Program Analysis......................................................499 The Code Inspector .......................................................................500 Unit 9: Adjusting the SAP Standard Software (Overview) .........................511 Adjusting the SAP Standard Software (Overview) ....................................512 Index............................................................................................527 vi ' 2008 SAP AG. All rights reserved. 2007/Q4

Course Overview This course introduces you to the ABAP programming language of SAP as well as its development environment, the ABAP Workbench. In both cases, we will be focusing on concepts and fundamental principles. We also introduce the appropriate terminology, so that you will find it easier to understand follow-on documentation. We always handle these topics using practical application examples so that you can immediately implement what you have learned here. Above all, it should become clear how little effort is required to create high-performance business applications in a short period of time in the ABAP Workbench. We are convinced that this course will enable you to start developing immediately and provide you with the knowledge needed to focus on the essentials in subsequent courses. That is why this course is a prerequisite for more in-depth ABAP Workbench programming courses. Target Audience This course is intended for the following audiences: Project team members ABAP programmers Course Prerequisites Required Knowledge Programming knowledge SAPTEC (SAP NetWeaver Basics of the Application Platform) Course Goals This course will prepare you to: Understand and use basic ABAP syntax elements Implement different types of user dialog Program read accesses to the database Use the ABAP Workbench development tools Understand how developments are organized and transported 2007/Q4 ' 2008 SAP AG. All rights reserved. vii

Course Overview BC400 Course Objectives After completing this course, you will be able to: Create an ABAP program containing user dialogs and database accesses Describe the different types of development objects and their typical intended purposes Use appropriate tools to create simple examples of the development objects presented viii ' 2008 SAP AG. All rights reserved. 2007/Q4

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