Mastering SAP ABAP电子书

Dedication

About Packt

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Contributors

About the authors

About the reviewer

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Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

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Code in action

Conventions used

Get in touch

Reviews

Creating Custom Code

Technical requirements

Making changes

Design thinking

BDUF/LDUF

Designing for quality and use

Designing the UI

Designing services

Designing the business logic

Designing the database

Agile principles

DevOps

Continuous delivery

Summary

Questions

The Basic Structure of ABAP

Technical requirements

The Data Dictionary

Domains

Data elements

Structures

Search helps

Table types

Databases

Data declaration

Field symbol

Summary

Questions

Database Access in ABAP

Technical requirements

Starting with OpenSQL

Basics

Possibilities with SELECT - the first part of the SQL statement

Possibilities with INTO - the third part of the SQL statement

The WHERE condition

How to see data selected from a database

More advanced possibilities in OpenSQL

WHERE conditions

Dynamic SELECT in WHERE

SINGLE FOR UPDATE

GROUP BY

ORDER BY

UP TO and ROWS

SELECT and ENDSELECT

FOR ALL ENTRIES

Subqueries

Reading data from several tables

Identifying and saving the changes

Creating datasets

Updating datasets

Deleting datasets

The optimization of reading big datasets

The new SQL syntax

Inline declaration

SQL expression

Using the SQL Trace tool for performance analysis

Summary

Questions

Import and Export to Document Formats

Technical requirements

Client-side file processing

Reading files from the local PC using gui_upload

Writing files to the local PC using gui_download

Server-side file processing

Basic transactions related to server-side files

Writing files to the application server

Reading files from the application server

Working with Microsoft Office files

Reading data from Microsoft Excel

Saving a table to a Microsoft Excel file

Working with Microsoft Word

Using DOI to integrate Microsoft Office applications into ABAP reports

Summary

Questions

Further reading

Exposing Data to Print Forms

Technical requirements

Introduction to printouts in SAP

SAPScript - the great-grandfather of all printouts

Creating our first SmartForm

Adobe Forms

Creating our first Adobe Form

Summary

Questions

Further reading

ABAP and XML

Technical requirements

Using the CL_XML_DOCUMENT class for XML

Reading and parsing XML files to ABAP

Changing XML data

Simple transformations in ABAP

Serialization using ST

Deserialization using ST

sXML library for XML and JSON

Converting XML to JSON

Summary

Questions

Further reading

Building User Interfaces

Technical requirements

Classic DynPro

Screen painter

Selection screens

More advanced options of the selection screen

Checkbox

Radiobutton

Blocks in selection screens

Selection screen event model

ALV

Basics

Advanced capabilities of ALV sand screens

Zebra

Coloring

Event of an ALV, exemplified by a button click

Icons in the ALV

Text fields and translations

Input/output field

Radiobuttons and checkbox

Button

Dynamic display possibilities for individual elements and groups

Summary

Questions

Creating Stunning UI5 Interfaces

Technical requirements

Development tools

Layouts and floorplans

SAP Fiori elements

The analytical list page

The list report

The object page

The overview page

The worklist

Layouts

Floorplans

The initial page floorplan

The multi-instance floorplan

The wizard floorplan

Basic templates

The SAPUI5 library

Control documentation page and inheritance

Contextual info

Overview

Constructor

Properties

Associations

Aggregations

Events

Methods

Inheritance

Main controls

Custom controls

Creating our first mobile app

Application and project structure

index.html

The standard variant

The content delivery network

The miscellaneous variants

Component.js

manifest.json

Views and controllers

MainView.view.xml

SearchView.view.xml

SearchView.controller.js

i18n.properties

Testing SAPUI5 apps

Mock Server

Unit tests

Integration tests

Summary

Questions

Further reading

Business Object Processing Framework

Technical requirements

An introduction to BOPF

Transaction

Nodes and entities

First BOPF example

Creating the object

Displaying an object

Summary

Questions

Further reading

Modification and Customization Techniques

Technical requirements

Legacy ways of changing the standard

Customer Exits

Using BTE to extend FI functionality

Modifications

FQEVENTS

Appends

Classical BAdl

Enhancement framework and its components

Enhancement sections and Enhancement points

Implicit enhancements

Summary

Questions

Further reading

Handling Exceptions in ABAP

Technical requirements

Classic exception handling

Handling

Raising

Class-based exceptions

Handling

Raising

Assertions

Building a checkpoint group

Defining assertions

Using assertions

Runtime errors

ABAP dump analysis tool

Error log

System environment

User View

ABAP developer View

BASIS developer View

Summary

Questions

Testing ABAP programs

Technical requirements

Testing the quality of code

Static testing with Code Inspector and ABAP Test Cockpit

Testing and troubleshooting

ABAP Memory Inspector

Advanced ABAP debugger techniques

Testing with eCATT

Summary

Questions

Further reading

Advanced Techniques in ABAP Objects

Technical requirements

Global versus local classes

Creating a local class

Creating a global class

The static method versus the instance method

Nested classes

A class as an attribute of the class

Inheritance

Interfaces

The event concept

ABAP Objects design patterns

Prototype - creation pattern

Singleton - creation pattern

Facade - structural pattern

Decorator - structural pattern

Observer - behavioral pattern

Strategy - behavioral pattern

Summary

Questions

Integrating SAP with Third-Party Systems

Technical requirements

IDoc

IDoc overview

The construction of IDoc

The EDI system

ALE

Differentiating ALE from EDI

BAPI

Implementing BAPI

SAP Gateway

Deployment variants

Embedded

Hub

Hub (with development)

Main tools

Gateway Service Maintenance

Gateway Client

Error Log

Gateway Service Builder

The OData protocol

Characteristics

The service definition

Developing our first OData application

Design time

Providing data

Summary

Questions

The Background Processing of ABAP Programs

Technical requirements

Background processing in SAP

Background remote function call

Scheduling background jobs

Creating a background job

Recording batch input sessions

Summary

Questions

Performance and Optimization of ABAP Code

Technical requirements

Ways of measuring ABAP programs performance

ABAP runtime analysis

ABAP trace analysis

ABAP SAT transactions

Best practice techniques

Summary

Questions

Assessments

Answers

Chapter 1 - Creating Custom Code

Chapter 2 - The Basic Structures of ABAP

Chapter 3 - Database Access in ABAP

Chapter 4 - Import and Export to Document Formats

Chapter 5 - Exposing Data to Print Forms

Chapter 6 - ABAP and XML

Chapter 7 - Building User Interfaces

Chapter 8 - Creating Stunning UI5 Interfaces

Chapter 9 - Business Object Processing Framework

Chapter 10 - Modification and Customization Techniques

Chapter 11 - Handling Exceptions in ABAP

Chapter 12 - Testing ABAP Programs

Chapter 13 - Advanced Techniques in ABAP Objects

Chapter 14 - Integrating SAP with Third-Party Systems

Chapter 15 - Background Processing of ABAP Programs

Chapter 16 - Performance and Optimization of ABAP Code

Additional tutorials

Creating a report from the template

Uploading graphics to SE78

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