This book provides a step-by-step introduction to the world of ABAP programming, from the description of the various components of the SAP ABAP language to the development of programs. First of all, the elements of the data dictionary and how to easily navigate through them are described in detail. By means of numerous practical exercises and concrete examples, we will learn how to use tables and views, as well as how to visualize and update data. Then, once we are able to start programming, we will create several programs that will include: declaring the data, selecting it from the database and processing it using basic instructions. In the central part of the book, the handling of internal tables and their contents is shown: how to select the desired data, display them, update them, etc. The instructions and subroutines used in the examples also show how to structure a program. With a little practice, mastering the basics of ABAP programming will be within reach.
Este libro permite adentrarse paso a paso en el mundo de la programación en ABAP, desde la descripción de los distintos componentes del lenguaje SAP ABAP hasta la elaboración de programas. Primeramente, se describen detalladamente los elementos del diccionario de datos y cómo navegar fácilmente por ellos. Mediante numerosos ejercicios prácticos y ejemplos concretos, aprenderemos a utilizar tablas y vistas, así como a visualizar y actualizar los datos. A continuación, una vez podamos empezar a programar, crearemos varios programas que incluirán: la declaración de los datos, su selección de la base de datos y su tratamiento mediante instrucciones básicas. En la parte central del libro, se muestra el manejo de tablas internas y de su contenido: cómo seleccionar los datos que se deseen, mostrarlos, actualizarlos, etc. Las instrucciones y subrutinas utilizadas en los ejemplos muestran también cómo estructurar un programa. Con un poco de práctica, el dominio de la base de la programación en ABAP estará a nuestro alcance.
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