The goal of the ABAP Workbench Foundations (BC) course is for you to gain a detailed knowledge of the fundamental concepts of ABAP. In this course, students gain knowledge of the fundamental concepts of ABAP and learn how to comfortably and efficiently work with the ABAP Workbench tools . ABAP/4 Development Workbench. Objectives Chapter 2. The ABAP/4 Programming Language. ABAP/4 Development Workbench Architecture. ABAP/4 : General.
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Transparent Tables and Views Lesson Overview In this lesson, you will become familiar with the description and the structure of transparent tables. This lesson concludes with a note about database table accesses that initiate changes.
Both index and key accesses are possible.
Using Selection Options When Accessing the Database The above example shows how you can restrict database selection to a certain range using a selection table. For compatibility reasons, you can also omit this addition.
ABAP statements facilitate data transport between program data objects and the work area designated as the screen interface. You must be able to compile the data to suit the demands of the customer using application programs.
The aap, depending on the message text, inserts these values into the message text. The user can then change the values in the input fields. Using global data types has several advantages: After its completion, the runtime system sends this list as a screen to the presentation server.
They are frequently used to make lists independent of a specific language. This is called an array fetch. In the data model, which is tailored for managing the necessary data, the data is stored in tables in a central database, organized according to technical criteria. The contents are copied left-justified without gaps.
Based on this data model, you can find the conversion of bc00 table definitions and their relationships in the ABAP Dictionary.
Elements that are displayed on the screen are called screen elements.
ABAP Workbench Foundations BC | Computer school Gopas, a.s.
Data Retrieval BC Task 2: For the user, the program works as follows: Working with Structures Figure Relational Data Model The flight data model contains entities for all business information that is logically connected, such as: Additionally, change your program so that the user can only progress from the selection screen if the authorization check for the selected airline is successful. The ABAP runtime system copies the data records to bv400 target area row by row using a loop.
The Graphical Screen Painter allows you to define different screen elements such as input and output fields, keyword bbc400, borders with ease. The second example shows the syntax for reading a line in the internal table with a fully specified key.
The system sends a query to the database every time the user double-clicks the list. The list that is used to display the data is created dynamically at runtime.
Course Description for BC
Event Blocks Event blocks are called in a fixed sequence designed for list processing: For detailed information about copying and the conversion rules, refer to the keyword documentation for the MOVE statement. To group the repository objects together logically and also transport them, you must create a package. With this in mind, this part of the unit will deal with: Use the LOOP statement to do this.
The runtime system gets all this program information from the Repository, which is a special part of the database. Inactive and Active Development Objects Whenever you create a development object, or change and then save it, the system first stores only one inactive version in the Repository.
ABAP Workbench Foundations
To avoid confusion, it is hc400 that you use internal tables without header lines. Use the CASE statement to do this. For this reason, you should define the subroutine first and then call it. For detailed information about defining local table types, refer to the keyword documentation for the TYPES statement. Key fields If the rows requested from the database are being retrieved according to key fields, the Database Optimizer can perform access using a primary index.
The Key indicator marks a field as a key field. User dialogs BC Lesson: For this reason, the individual components in a row are referred to as columns of the internal vc400.
ABAP Workbench Foundation
If an input field is typed with a structure field that uses a data element, the following semantic information is available: Working with Structures Task 3: Otherwise, the system can use considerable resources simply copying them to the subroutine. To make the program easier to maintain, you should use the corresponding global types ABAP Dictionary to assign types to the data objects.
Only certain parts of the ABAP program are processed. Introduction to the Repository Figure If the detailed data has changed between creating the basic list and displaying the screen, the system will display the wrong data. Choosing Save changes the data in the database.