Looking for two structure types comparison method

[Former Member]

Hi All

Could somebody provide a method for two structure types comparison ?

I need to define if both structures have same:

• fields quantity
• field names
• fields order

but one of field has different length.

Does it exist short method for the difference check?

Of course I can create two tables by CL_ABAP_TYPE_DESCR  with types of these structures and to compare these internal tables them line by line.

May be exists more short Method without LOOP ?

Regards..

[nabheetscn]

Please check the following link

http://scn.sap.com/thread/3351517

[Former Member]

Hi Anuser,

The structure can be compared either by using the FM DDIF_NAMETAB_GET or using CL_ABAP_TYPE_DESCR like mentioned below. But as far as I know, if you want to compare internal table records, you must loop through the records.

Structure comparison using CL_ABAP_TYPE_DESCR:

TYPES: begin of my_type,

        age TYPE i,
        name type text30,

       end of my_type.

DATA: my_data   TYPE my_type,
      descr_ref TYPE ref to cl_abap_typedescr.

START-OF-SELECTION.
  descr_ref = cl_abap_typedescr=>describe_by_data( my_data ).

  WRITE: / 'Typename:', descr_ref->absolute_name.
  WRITE: / 'Kind    :', descr_ref->type_kind.
  WRITE: / 'Length  :', descr_ref->length.
  WRITE: / 'Decimals:', descr_ref->decimals.

Thanks,

Ajay Bose

[Former Member]

Sorry, I forgot a small detail. These structures are Local in ABAP program and they don't have relation to SAP Dictionary.

But it seems to me advised CL_TPDA_TOOL_DIFF->DIFF_VARS my be appropriate. I check it  

[nabheetscn]

Yes becoz this is what New ABAP debugger use in its new tool structure comparison