Can we call a subroutine in a script? If so, how?
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Answer Posted / 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.
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