topic Re: Structure Comparison - Debugger Diff Tool Equivalent in Application Development and Automation Discussions

Structure Comparison - Debugger Diff Tool Equivalent

Former Member — Tue, 22 Nov 2011 19:28:07 GMT

Does anyone know of a function module/other which performs logic similar to what is possible in the Diff Tool in the new debugger? (see http://help.sap.com/saphelp_nw70/helpdata/en/2c/840b42202cce6ce10000000a155106/content.htm )

This is a great tool available in debugging that I would like to use in a program to highlight differences between structures which share common fields yet have different layouts. Consider the following example of two structures and their corresponding values:

Structure A

- Field 'A'; Value '123'

- Field 'B'; Value '234'

- Field 'C'; Value '345'

Structure B

- Field B; Value '234'

- Field C; Value '456'

- Field D; Value '567'

In this example, fields B and C are common to both structures and the assigned values for field C differs. I am able to see this type of analysis from the debugging tool - is there a way to perform similar logic in a program using a standard function module/syntax? I'm not sure if a field-symbol type approach would be very efficient although I am open to thoughts.

Thanks!

Re: Structure Comparison - Debugger Diff Tool Equivalent

naimesh_patel — Tue, 22 Nov 2011 22:52:35 GMT

New debugger uses the class CL_TPDA_DIFF_STRUC for structure comparison. There are other classes available for Table, Object and other comparisons - Check with CL_TPDA_DIFF*.

If you check this classes, it find the different values by going through each component and comparing it with each other using the field-symbols. So, you can work on similar approch:

Get the Fields of both structures
Sort them by field names, if you want comparison by field names
For each field check the value and compare with other value

I found the FM COMPARE_STRUCTURE_DATA which does the comparison, but doesn't use RTTS so, you need to have data dictionary reference in order to use it.

Regards,

Naimesh Patel

Re: Structure Comparison - Debugger Diff Tool Equivalent

Former Member — Wed, 23 Nov 2011 00:34:02 GMT

Have a look at this WIKI, it uses RTTS to compare internal tables dynamically

http://wiki.sdn.sap.com/wiki/display/Snippets/ComparingTwoInternalTables-AGeneric+Approach

Re: Structure Comparison - Debugger Diff Tool Equivalent

former_member212713 — Thu, 24 Nov 2011 14:50:37 GMT

Hi;

Is there any example about CL_TPDA_DIFF_STRUC Class?

Thanks.

Re: Structure Comparison - Debugger Diff Tool Equivalent

former_member189009 — Thu, 30 Oct 2014 14:52:23 GMT

This message was moderated.