[ABAP Function] Function Module Examples Code - Date Calculation

Objective
Knowledge using SAP Standard Function Module to calculate the calendar system
Support
Contributor
Albertus Reinandang ( reinandang@yahoo.com )

1.BCA_US_DATES_CALC_UNIT : Calculating the difference of the start date and end date.
Example :
REPORT ztest_fm101 NO STANDARD PAGE HEADING LINE-SIZE 1023.

PARAMETERS : pa_begda LIKE sy-datum DEFAULT '20080514',
pa_endda LIKE sy-datum DEFAULT sy-datum.

START-OF-SELECTION.

DATA : lv_count LIKE bca_us_bkk_td-term.

CALL FUNCTION 'BCA_US_DATES_CALC_UNIT'
EXPORTING
i_start_date = pa_begda
i_end_date = pa_endda
i_periodunit = '1'
IMPORTING
e_return = lv_count.

WRITE : / lv_count.
2./SAPHT/DRM_CALC_DATE : Add or subtract from the date of the input.
Example :
REPORT ztest_fm102 NO STANDARD PAGE HEADING LINE-SIZE 1023.

PARAMETERS : pa_date LIKE bkpf-bldat DEFAULT sy-datum,
pa_day LIKE bseg-dtws1,
pa_month LIKE bseg-dtws2,
pa_sign DEFAULT '+' OBLIGATORY,
pa_year LIKE bseg-dtws3.


START-OF-SELECTION.

DATA : lv_date LIKE sy-datum.

CALL FUNCTION '/SAPHT/DRM_CALC_DATE'
EXPORTING
date = pa_date
days = pa_day
months = pa_month
sign = '+'
years = pa_year
IMPORTING
calc_date = lv_date.

WRITE : / lv_date.

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