topic Re: Perform tables. in Application Development and Automation Discussions

Perform tables.

vasanth_rajagopal — Mon, 16 Mar 2009 07:40:51 GMT

How and why to use tables in perform (subroutines) statement?

Do tell me the difference between using and changing statement in perform (subroutines).., ?.

thanks.

vasanth

Re: Perform tables.

Former Member — Mon, 16 Mar 2009 07:44:26 GMT

You are supposed to search first the forum for your question before posting : this will save your time waiting for answers also.

check this link :

Mathews

Re: Perform tables.

Former Member — Mon, 16 Mar 2009 07:46:17 GMT

Hi Vasanth,

Kindly go through this link below:

http://help.sap.com/saphelp_nw04s/helpdata/en/9f/db977635c111d1829f0000e829fbfe/frameset.htm

Hope it helps

Regrds

Mansi

Re: Perform tables.

Former Member — Mon, 16 Mar 2009 07:47:12 GMT

Hi Vasanth,

Befor perform a=1, b=2.

*PERFORM <subroutine> [(<program>)] [TABLES <actual table list> 'int' ]

[USING <actual input list> 'a']

[CHANGING <actual output list> 'b' ]*

After Perform a=1, b=3.

If you want to use int tbale in form....endform. This way u can use tables in performs.

Using - it will be used in form....endform. Its value not chnages after returing back to program.

Changing - it will be used in form....endform. Its value chnages after returing back to program.

Reg,

Sachin

Re: Perform tables.

I355602 — Mon, 16 Mar 2009 07:47:14 GMT

Hi,

Do search before posting such question.

A subroutine is an internal modularization unit within a program, to which you can pass data using an interface. You use subroutines to encapsulate parts of your program, either to make the program easier to understand, or because a particular section of coding is used at several points in the program.

Your program thus becomes more function-oriented.

USING - CALL BY VALUE

CHANGING - CALL BY REFERENCE

Hope this helps you.

Regards,

Tarun

Re: Perform tables.

Former Member — Mon, 16 Mar 2009 07:49:11 GMT

Hi,

check this link

http://www.sap-basis-abap.com/abap/meaning-of-changing-var-in-subroutine-call.htm

it would helpful

Thanks and regards

Durga.K