Domain: Defines the attributes such as length,type and possible value range. Data element; An intermediate object between domain and table type
Domain : technical attributes of dataelement is called domain. Dataelement : Symantic attributes are called dataelement.
layout set elements are
1.header 2.peragraph formats 3. character formats 4. windows 5. pages 6.page windows
Table controls are modified / mproved versions of step loops. in controls we can do, horizontal scrolling, vertical scrolling, scrolling in a perticular field, resize the table, can save the settings for future use, can make selective columns editable,....etc these things are not possible with step loops. step loops are controlled by loop-endloop statements.
Import and Export ABAP memory is a memory area that all ABAP programs within the same internal session can access using the EXPORT and IMPORT statements. Data within this area remains intact during a whole sequence of program calls. To pass data to a program which you are calling, the data needs to be placed in ABAP memory before the call is made. The internal session of the called program then replaces that of the calling program. The program called can then read from the ABAP memory. If control is then returned to the program which made the initial call, the same process operates in reverse.
SAP memory is a memory area to which all main sessions within a SAPgui have access. You can use SAP memory either to pass data from one program to another within a session, or to pass data from one session to another. Application programs that use SAP memory must do so using SPA/GPA parameters .
ABAP memory is a memory area that all ABAP programs within the same internal session can access using the EXPORT and IMPORT statements. Data within this area remains intact during a whole sequence of program calls. To pass data to a program which you are calling, the data needs to be placed in ABAP memory before the call is made. The internal session of the called program then replaces that of the calling program. The program called can then read from the ABAP memory.
1. SAP memory is for cross-transaction Applications and ABAP/4 memory is transaction-specific.
2. The SAP memory, otherwise known as the global memory, is available to a user during the entire duration of a terminal session. Its contents are retained across transaction boundaries as well as external and internal sessions. The contents of the ABAP/4 memory are retained only during the lifetime of an external session. You can retain or pass data across internal sessions.
3. The SET PARAMETER and GET PARAMETER statements allow you to write to, or read from, the SAP memory. The EXPORT TO MEMORY and IMPORT FROM MEMORY statements allow you to write data to, or read data from, the ABAP memory.
We can Validate Selection Screen With the Help of the Following Events, the Event Follows the Same hierachy.
AT SELECTION-SCREEN ON AT SELECTION-SCREEN ON BLOCK AT SELECTION-SCREEN OUTPUT AT SELECTION-SCREEN.
At selection-screen on select stmt ------------------ where = . if sy-subrc = 0. validation success for LOw value in selection screen At selection-screen on select stmt-------------------- where = if sy-subrc <> 0. validation failure on high value in the selection field. else success. endif
A Great Tutorials Portal
Aquarian Infotech System
Copyright © 2008 interviewmaterial.com. All rights reserved.