- SAP ABAP
- What is SAP ABAP
- SAP ABAP Data Dictionary and Domain
- SAP ABAP Data Element
- SAP ABAP Database Table
- SAP ABAP Database tables and views
- SAP ABAP Foreign Key
- SAP ABAP Indexes
- SAP ABAP Structure
- SAP ABAP Package
- SAP ABAP Adding Fields to SAP Standard Table
- SAP ABAP Internal Table and Database Table
- SAP ABAP Select Option and Parameter
- SAP ABAP Types of Internal Table
- SAP ABAP ways of Declaring Internal Tables
- SAP ABAP Mastering Initialization Technique
- SAP ABAP Operations on Internal Table
- SAP ABAP Record Retrieval
- SAP ABAP Insert, Modify and Delete data in the Internal table by using Keywords
- SAP ABAP Sorting and Removing Adjacent Duplicates
- SAP ABAP Seamless Data Transfer Between Internal Tables
- SAP ABAP Search Help Types
- SAP ABAP Lock Objects and Types
- SAP ABAP Buffering and Its Types
- SAP ABAP TMG
- SAP ABAP Table Types
- SAP ABAP Views
- SAP ABAP Control Break Statement
- SAP ABAP COMMIT and ROLLBACK
- SAP ABAP Joins
- SAP For All Entries
- SAP ABAP Procedure to Fill Final Internal Table
- SAP ABAP Modularization
- SAP ABAP Function Group and Function Module
- SAP ABAP SELECT Options
24DDIC0908 – Simplifying Code through Modularization Techniques
Modularization is a key concept in SAP ABAP programming that allows for the creation of reusable and maintainable code. It involves breaking down a large program into smaller, self-contained modules that can be called upon when needed. This not only improves the efficiency of the code but also makes it easier to debug and maintain.
There are several techniques for modularization in SAP ABAP, each with its own advantages and use cases. In this blog post, we will explore some of the most commonly used techniques and how they can benefit your ABAP programming.
- Subroutines
Subroutines are the most basic form of Modularization in ABAP. They are small blocks of code that can be called from within a program using the PERFORM statement. Subroutines are useful for performing specific tasks that are used multiple times within a program. They can also be used to improve the readability of the code by breaking it down into smaller, more manageable chunks.
Example:
FORM calculate_total USING p_quantity TYPE i p_price TYPE p
CHANGING p_total TYPE p.
p_total = p_quantity * p_price.
ENDFORM.
DATA: lv_quantity TYPE i VALUE 10,
lv_price TYPE p VALUE 20,
lv_total TYPE p.
PERFORM calculate_total USING lv_quantity lv_price CHANGING lv_total.
WRITE: / ‘Total:’, lv_total.
- Function Modules
Function modules are similar to subroutines but have the added advantage of being able to be called from other programs or systems. They are self-contained units of code that can be used to perform a specific task or calculation. Function modules are particularly useful when working with distributed systems or when multiple programs need to access the same functionality.
Example:
CALL FUNCTION ‘CONVERSION_EXIT_ALPHA_INPUT‘
EXPORTING
input = lv_input
IMPORTING
output = lv_output.
- Include Programs
Include programs are reusable blocks of code that can be included in other programs using the INCLUDE statement. They are useful for sharing common code between programs and can also be used to create libraries of frequently used functions. Include programs are also helpful for maintaining consistency in coding standards across different programs.
Example:
abap
INCLUDE zprogram_include1.
INCLUDE zprogram_include2.
- Classes and Methods
Classes and methods are object-oriented programming concepts that allow for more advanced Modularization in ABAP. Classes are used to define objects and their properties, while methods are used to define the behavior of those objects. This approach is particularly useful for creating complex and reusable code that can be easily maintained and extended.
Example:
CLASS lcl_calculator DEFINITION.
PUBLIC SECTION.
METHODS: calculate_total IMPORTING iv_quantity TYPE i
iv_price TYPE p
RETURNING VALUE(rv_total) TYPE p.
ENDCLASS.
CLASS lcl_calculator IMPLEMENTATION.
METHOD calculate_total.
rv_total = iv_quantity * iv_price.
ENDMETHOD.
ENDCLASS.
- Macros
Macros are used to encapsulate frequently used code snippets that can be reused across the program. However, use macros sparingly, as they can make the code harder to read and debug.
Example:
DEFINE multiply.
&1 = &2 * &3.
END-OF-DEFINITION.
DATA: lv_result TYPE i.
multiply lv_result 10 20.
WRITE: / ‘Result:’, lv_result.
Author : Aniket Pawar, 9373518385
24DDIC0908 – Simplifying Code through Modularization Techniques
Modularization is a key concept in SAP ABAP programming that allows for the creation of reusable and maintainable code. It involves breaking down a large program into smaller, self-contained modules that can be called upon when needed. This not only improves the efficiency of the code but also makes it easier to debug and maintain.
There are several techniques for modularization in SAP ABAP, each with its own advantages and use cases. In this blog post, we will explore some of the most commonly used techniques and how they can benefit your ABAP programming.
- Subroutines
Subroutines are the most basic form of Modularization in ABAP. They are small blocks of code that can be called from within a program using the PERFORM statement. Subroutines are useful for performing specific tasks that are used multiple times within a program. They can also be used to improve the readability of the code by breaking it down into smaller, more manageable chunks.
Example:
FORM calculate_total USING p_quantity TYPE i p_price TYPE p
CHANGING p_total TYPE p.
p_total = p_quantity * p_price.
ENDFORM.
DATA: lv_quantity TYPE i VALUE 10,
lv_price TYPE p VALUE 20,
lv_total TYPE p.
PERFORM calculate_total USING lv_quantity lv_price CHANGING lv_total.
WRITE: / ‘Total:’, lv_total.
- Function Modules
Function modules are similar to subroutines but have the added advantage of being able to be called from other programs or systems. They are self-contained units of code that can be used to perform a specific task or calculation. Function modules are particularly useful when working with distributed systems or when multiple programs need to access the same functionality.
Example:
CALL FUNCTION ‘CONVERSION_EXIT_ALPHA_INPUT‘
EXPORTING
input = lv_input
IMPORTING
output = lv_output.
- Include Programs
Include programs are reusable blocks of code that can be included in other programs using the INCLUDE statement. They are useful for sharing common code between programs and can also be used to create libraries of frequently used functions. Include programs are also helpful for maintaining consistency in coding standards across different programs.
Example:
abap
INCLUDE zprogram_include1.
INCLUDE zprogram_include2.
- Classes and Methods
Classes and methods are object-oriented programming concepts that allow for more advanced Modularization in ABAP. Classes are used to define objects and their properties, while methods are used to define the behavior of those objects. This approach is particularly useful for creating complex and reusable code that can be easily maintained and extended.
Example:
CLASS lcl_calculator DEFINITION.
PUBLIC SECTION.
METHODS: calculate_total IMPORTING iv_quantity TYPE i
iv_price TYPE p
RETURNING VALUE(rv_total) TYPE p.
ENDCLASS.
CLASS lcl_calculator IMPLEMENTATION.
METHOD calculate_total.
rv_total = iv_quantity * iv_price.
ENDMETHOD.
ENDCLASS.
- Macros
Macros are used to encapsulate frequently used code snippets that can be reused across the program. However, use macros sparingly, as they can make the code harder to read and debug.
Example:
DEFINE multiply.
&1 = &2 * &3.
END-OF-DEFINITION.
DATA: lv_result TYPE i.
multiply lv_result 10 20.
WRITE: / ‘Result:’, lv_result.
Author : Aniket Pawar, 9373518385
