Answer / kiran kumar v

Yes. Subroutine can be called using ITCSY structure.

Sample Code:
/: PERFORM SUM IN PROGRAM ZPROGRAM
/: USING &VAR1&
/: USING &VAR2&
/: CHANGING &RESULT&
/: ENDPERFORM

In the program(ZPROGRAM), we need to write the form ....

FORM SUM TABLES INTAB STRUCTURE ITCSY
OUTTAB STRUCTURE ITCSY.
data: field1 type i,
field2 type i,
result type i.

TO read the values from the ITAB you have to use this logic.
READ TABLE INTAB WITH KEY NAME = 'VAR1'.
IF SY-SUBRC = 0.
FIELD1 = INTAB-VALUE.
ENDIF.

READ TABLE INTAB WITH KEY NAME = 'VAR2'.
IF SY-SUBRC = 0.
FIELD2 = ITAB-VALUE.
ENDIF.


RESULT = V_FIELD1 + V_FIELD2.
READ TABLE OUTTAB INDEX 1.
IF SY-SUBRC = 0.
OTAB-VALUE = RESULT.
MODIFY OUTTAB INDEX 1 .
ENDIF.
ENDFORM.

Answer / chittidi

YES , WE CAN CALL SUBROUTINES IN SCRIPTS WITH OUT
CHANGING THE STANDARD DRIVER PROGRAM TO FETCH ADDITONAL
DATA TO PRINT IT ON LAYOUT.

WRITE SUBROUTINES IN MAIN PROGRAM AND CALL THE SUBROUTINE
ie PERFORM in page WINDOW OF THE LAYOT.
SYNTAX :
/: PERFORM <FORM>IN PROGRAM <PROG> USING &INVAR1& &INVAR2&
........
........
/: CHANGING &OUTPUT1& &OUTPUT2&.
........

ENDFORM.

FORM <FORM> TABLES IN_TAB STRUCTURE ITCSY OUT_TAB STRUCTURE
ITCSY.
........
ENDFORM.

HERE INVAR1 , INVAR2 ARE VARIABLE SYMBOLS WHICH MAY BE ONE
OF THE FOUR SCRIPT SYMBOL TYPES.

OUTPUT1 , 2 ARE LOCAL TEXT SYMBOLS AND MUST BE CHAR STRINGS.

THE INTERNAL TABLE OUT_TAB CONTAINS 2 FIELDS THAT IS
NAMES AND VALUES OF THE CHANGING PARAMETERS IN THE PERFORM
STATEMENT.

What is the difference between macro and subroutine?

8 Answers   HCL,

---

What is the sap abap?

0 Answers  

---

Elements of Main window and is Main window compulsory in Sap script ?

3 Answers   EDS,

---

How do you get help in ABAP?

1 Answers  

---

Wat is the difference between Select single * and Select .. Up to one row . And which method is better for performance ?

9 Answers   CSC,

---

what is sap scriptview ?

0 Answers   ABC, IBM,

---

What is meant by payscale structure? How did you configure pay scale structure? : sap abap hr

0 Answers  

---

how can u write in single program call transaction and session method logic? if u write logic in call transaction ,is there any errors ? how can u see in session ?

2 Answers   Satyam,

---

Can i Have Some Realtime Examples On Modulepool programming.

0 Answers  

---

What is PNP-SW-FOUND

1 Answers  

---

If there are 100 records...explain the BDC session method step by step how you gonna do ?

2 Answers   Deloitte,

---

what is the process of creating quotation using BAPIs.

0 Answers   SGT,

---