Can we call a Function Module with in a loop

[Former Member]

Hi,

Can we call a Function Module within a loop . Does it reduces the performance.

Can you please guide regarding this.

With Best Regards

Mamatha.

[gopi_narendra]

Yes we can call. But it depends on the requirement.Performance is not a major compared to the requirement needed.

loop at it_tab into wa_tab.

call function 'CONVERSION_EXIT_PDATE_OUTPUT'

exporting

INPUT = wa_tab-date

IMPORTING

OUTPUT = wa_tab-date.

modify table it_tab from wa_tab transporting date.

clear wa_tab.

endloop.

Regards

- Gopi

[Former Member]

Hi,

If you can avoid it that's good,

but it doesn't affect the performance very badly as it creates it's own LUW.

Regards,

Raghavendra

[Former Member]

you can call the fuction module in the loop.

it depends totally what fuction module you are calling, if it is making lot ot iteration then performance may decrease,

so its totally depends upon the condtion where you are calling

but in most of the cases its not good to do so

Regards,

Naveen

[Former Member]

hi Mamatha,

You can call .. but it is better to avoid calling it within a loop...

Loop at it_tab.

   call function 'CONVERSION_EXIT_ALPHA_INPUT'
    exporting
      input  = it_tab-vbeln.
    importing
      output = it_tab-vbeln.

endloop.

Regards,

Santosh

Message was edited by:

Santosh Kumar Patha

[Former Member]

You can call the function module in loop.

[Former Member]

Hi

I have the input to a function module in an internal table and i need read record by record. For Each record we have to fetch the Net Due Date by calling a FM.

How can i avoid calling a Function Module with a loop. Any alternatives available.

With Best Regards

Mamatha.B

[gopi_narendra]

yes u can call the FM its not a big performance issue. unless and untill it triggers the <b>MODIFICATIONS</b> on standard SAP tables.

Regards

- Gopi

Message was edited by:

Gopi Narendra

[Former Member]

Hi Mamatha.

If you can edit the function module, you can pass the internal table or the column of the table (import) to the function module and return the due date column (as a table of due date) (export).

Loop on the imported table and write your due date calculation code in that loop filling the export table at the end.

Regards

Kaushal N. Shah.