Date calcutation

[Former Member]

I know there are many post on date calcutation questions but i could not find any answers to my question.

I use following code

CALL FUNCTION 'RP_CALC_DATE_IN_INTERVAL'

EXPORTING

date = 20080430

days = 0

months = 1

signum = '-'

years = 0

IMPORTING

calc_date = w_interval-low.

When i substract 2 month from 20080430 i will get w_interval-low 20080330 but 30 april is the last day of the month and therefore i want to have w_interval-low to be filled with 20080331 (last day of march).

Any solutions?

[Former Member]

hi,

data: w_date type d value '20080430'.

w_date+6(2) = '01'. " Value in w_date will be '20080401'
subtract 1 from w_date. " w_date = '20080331'

The above code serves your purpose.

This way you can get the last date of the previous month with respect to the given date.

Thanks

Sharath

[Former Member]

Hi,

SG_PS_GET_LAST_DAY_OF_MONTH

this Function module gives the last day of the month

just subtract one month from the entered date and then pass it to this fm

if it is 01 then make it to 12 and change the year also.

Regards,

Venkatesh

[Former Member]

Hey,

try this FM which suits exactly to your requirement

OIL_LAST_DAY_OF_PREVIOUS_MONTH

regards,

Venkatesh

[Former Member]

Hi,

use this Fm to get the last day of the month

LAST_DAY_OF_MONTHS

[valentin_catalin2]

Hi,

An option is to use function module LAST_DAY_OF_MONTHS. This will return the last day of the month.

As example:

data: l_date type sy-datum,
        l_date_result type sy-datum,
        l_date_tmp type sy-datum.

l_date = '20080430'.

CALL FUNCTION 'RP_CALC_DATE_IN_INTERVAL'
  EXPORTING
    date = l_date
    days = 0
    months = 1
    signum = '-'
    years = 0
  IMPORTING
    calc_date = l_date_result.

call function 'LAST_DAY_OF_MONTHS'
  exporting 
    day_in = l_date
  importing 
    last_day_of_month = l_date_tmp.

if l_date = l_date_tmp.
  call function 'LAST_DAY_OF_MONTHS'
    exporting 
      day_in = l_date_result
    importing 
      last_day_of_month = l_date_result.
endif.

This code will just set the resulting date to the end of the month when the initial date as the same - a end of the month.

BR,

Valentin

[Former Member]

Hi,

Use this FM: 'OIL_LAST_DAY_OF_PREVIOUS_MONTH'

Just copy this code it will give the exact last day of previous month

I tried in my system..it is working..

PARAMETERS : date1 LIKE sy-datum.

CALL FUNCTION 'OIL_LAST_DAY_OF_PREVIOUS_MONTH'

EXPORTING

i_date_old = date1

IMPORTING

e_date_new = date1.

.

DATA date2 LIKE sy-datum.

date2 = date1 .

WRITE date2.

Edited by: Kiran Saka on Feb 10, 2009 2:03 PM

[Former Member]

This still is not satisfying;

Substract 1 month from date

30042009 - 1 month wil be 30032008, this will mean that my programm which will run on a daily bais will never trigger the date 31032008.

I think i have to substract a certain amount of days to trigger each date in the past.

Edited by: Richard van Veen on Feb 10, 2009 2:02 PM

Edited by: Richard van Veen on Feb 10, 2009 2:03 PM

Edited by: Richard van Veen on Feb 10, 2009 2:03 PM

[Former Member]

Use FM

HR_99S_DATE_ADD_SUB_DURATION

this will solve ur query

Regards,

Prasant

[Former Member]

Hi,

Is it working properly..

Regards

Kiran

[Former Member]

Hi Richard,

Instead of using function modules ( as it uses lots of memory since the whole of function group is downloaded you can perform the following code in subroutine and call the subroutine the place you are calling the function-module )

form date_sub using w_date type d

w_month(2) type n.

data :

lw_date like sy-datum.

lw_date = w_date.

lw_date+6(2) = 15.

do w_month times.

subtract 30 from lw_date.

enddo.

w_date0(6) = lw_date0(6). " this will give the changed year and the month

add 1 to lw_date.

if lw_date = '00010102'.

lw_date+6(2) = 28.

do 3 times.

add 1 to lw_date.

if lw_date = '00010102'.

lw_date+6(2) = 28 + sy-index - 1.

exit.

endif.

enddo.

w_date6(2) = lw_date6(2)

endif.

Hope it helps you in saving the performance of your program...

Regards,

Siddarth

[Former Member]

Using substraction of 60 days now instead of substracting 2 months!