topic Re: changing or using? in Application Development and Automation Discussions

changing or using?

Former Member — Tue, 16 Jan 2007 01:30:08 GMT

Hi all,

Is any one of them obsolete/not preferred when writing a subroutine?

Thanks,

Charles.

Re: changing or using?

Former Member — Tue, 16 Jan 2007 01:32:16 GMT

USING is preferred. CHANGING is obsolete.

USING performs both operations.

Re: changing or using?

Former Member — Tue, 16 Jan 2007 01:51:05 GMT

USING is preferred in subroutines.

For more info, please refer below link:

http://help.sap.com/saphelp_nw2004s/helpdata/en/9f/db984635c111d1829f0000e829fbfe/content.htm

Thanks,

Santos

Re: changing or using?

Former Member — Tue, 16 Jan 2007 02:36:57 GMT

HI,

You can you any of them, but its better if you are going to pass any value to a FM and return back the changed value use it through CHANGING, if you just want to pass it to the FM, use USING.

Regards

Subramanian

Re: changing or using?

Former Member — Tue, 16 Jan 2007 02:58:10 GMT

The link provided by Santos gives the detail.

In summary:

- If the form definition has a parameter USING VALUE(p_var1) then any changes will NOT be passed back to the caller.

- Any other parameter definitions will result in changes being passed back to the caller.

- For readability, if the form is going to pass back a changed value for a parameter, then you should use a CHANGING parameter.

- The TABLES parameter is obsolete. You should use a using/changing parameter with a table type.

Regards

Michael