Book Image

Mastering SAP ABAP

By : Paweł Grześkowiak, Wojciech Ciesielski, Wojciech Ćwik
Book Image

Mastering SAP ABAP

By: Paweł Grześkowiak, Wojciech Ciesielski, Wojciech Ćwik

Overview of this book

Advanced Business Application Programming (ABAP) is an established and complex programming language in the IT industry. This book is designed to help you use the latest ABAP techniques and apply legacy constructions using practical examples. You'll start with a quick refresher on language and database concepts, followed by agile techniques for adding custom code to a modern ABAP system. After this, you will get up to speed with the complete ABAP toolset for importing data to and from different environments. Next, you'll learn how to print forms and work with the different ABAP tools for Extensible Markup Language (XML) manipulation. While covering further chapters, you'll gain insights into building stunning UI5 interfaces, in addition to learning how to develop simple apps using the Business Object Processing Framework (BOPF). You will also pick up the technique of handling exceptions and performing testing in ABAP. In the concluding chapters, you can look forward to grasping various techniques for optimizing the performance of programs using a variety of performance analysis tools. By the end of this book, you will have the expertise you need to confidently build maintainable programs in Systems, Applications, and Products (SAP).
Table of Contents (25 chapters)
Title Page
Copyright and Credits
Dedication
About Packt
Contributors
Preface
Index

How to see data selected from a database


In order to exercise SELECT, we need to know which values were selected from the database. How to show data is covered in Chapter 7Building User Interfaces. For now, I will get you a fragment of code to display data, which is selected from your SELECT statement.

 The following is an example of code to show data from an internal table:

DATA: gr_alv     TYPE REF TO cl_salv_table,
      gr_columns TYPE REF TO cl_salv_columns_table.

CALL METHOD cl_salv_table=>factory
IMPORTING
     r_salv_table = gr_alv
CHANGING
     t_table      = YOUR TABLE.

 gr_columns = gr_alv->get_columns( ).
 gr_columns->set_optimize( value = 'X' ).
 gr_alv->display( ).

Do you see YOUR TABLE in this piece of code? This is where you can input the name of your table.

For instance, if you want to see data stored in gt_sflight, you use the following code:

DATA: gr_alv     TYPE REF TO cl_salv_table,
      gr_columns TYPE REF TO cl_salv_columns_table.

CALL METHOD cl_salv_table...