Subroutine-name - Specifies the subroutine name.Internal subroutine can't be nested.Ĭalling subroutine - PERFORM () These subroutines can't available to the other programs. Internal subroutines used in the same program where it is defined. Subroutines are classified into two types based on how they are used. In the above diagram, subroutine-1 is the subroutine definition and the code block is replaced with calling subroutine-1 in all the places. The below diagram shows the same program after subroutines implementation. It also increases the complexity of the program. Program Y has the same statements block in three places which is redundant code. Let us take an example program Y and below diagram explains how the program Y look like before and after subroutine implementation. PERFORM and FORM must contain the same number of parameters. PERFORM statement used to call the subroutine. Subroutines can be defined using FORM and ENDFORM statements. Subroutines can be defined anywhere in the program and no restriction on where to define. Subroutines normally contains sections code or algorithms. Passing data using SAP Memory & ABAP Memory There are two cross-program memory areas to which ABAP programs have access that you can use to pass data between.ĪBAP Program for Submitting report with selection table Sample ABAP Program for learning how to Submit report with selection table REPORT submit_with_selection_table.TABLES QMSM.* Work area for internal table.Subroutines are procedures that can define in any program and call from any ABAP program. List of ABAP Function Modules in SAP Here is a list of important Function Modules in SAP.Function modules are re-usable programs ( codes ) that can be. WINDOW ( SAP ABAP keyword) WINDOW is a keyword used in SAP ABAP programming.This tutorial covers its introduction & syntax details. SAP ABAP dialog program ( Transactions) Interview questions What is a transaction? – A transaction is dialog program that change data objects in a consistent way. SAP System Fields list – Commonly used with ABAP programs Here is a list of important SAP System fields which are commonly used in our ABAP programs.Each System Field (. This tutorial covers its introduction & syntax details. LEAVE (ABAP Keyword) LEAVE is a keyword used in SAP ABAP programming.
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