What is the difference between macro and subroutine?
Page 1 of 1
What is the difference between macro and subroutine?
Macros can only be used in the program the are defined in and only after the definition are expanded at compilation / generation. Subroutines (FORM) can be called from both the program the are defined in and other programs . A MACRO is more or less an abbreviation for some lines of code that are used more than once or twice. A FORM is a local subroutine (which can be called external). A FUNCTION is (more or less) a subroutine that is called external. Since debugging a MACRO is not really possible, prevent the use of them (I’ve never used them, but seen them in action). If the subroutine is used only local (called internal) use a FORM. If the subroutine is called external (used by more than one program) use a FUNCTION
Uma_ABAP- Posts : 56
Join date : 2012-03-31
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum
|
|
Mon Aug 20, 2012 4:37 pm by Admin
» Difference between Type and Like
Thu Jun 07, 2012 2:40 pm by Admin
» How to handle table control fields in Module Pool program?
Wed May 09, 2012 2:41 am by govind
» Three tables inner join in SAP
Thu May 03, 2012 4:47 pm by Uma_ABAP
» Creating table type in ABAP
Sat Apr 28, 2012 9:03 pm by Uma_ABAP
» Creating user defined types and structures in ABAP
Sat Apr 28, 2012 8:55 pm by Uma_ABAP
» Creating Dynamic Internal Table and Dynamic Field catalog in SAP-ABAP
Fri Apr 27, 2012 11:00 am by Admin
» Copy Custom PF-Status from Standard program to Custom Program in ALV
Thu Apr 26, 2012 9:52 pm by Uma_ABAP
» Calculate/find number of working days between two dates in SAP
Tue Apr 24, 2012 2:06 pm by Uma_ABAP