topic Re: Create dynamic table from existing one in Application Development and Automation Discussions

Create dynamic table from existing one

Former Member — Tue, 06 Nov 2018 16:10:12 GMT

Dear experts,

I have following internal table:

Is there any possibility in ABAP (Framework, Class, etc), so I can fast create a new internal table at runtime which would look like this:

Would appreciate any kind of help.

Thanks and BR.

Re: Create dynamic table from existing one

matt — Tue, 06 Nov 2018 20:02:44 GMT

Yes. There is. It's called RTTS.

Re: Create dynamic table from existing one

former_member593648 — Tue, 06 Nov 2018 23:28:41 GMT

Check the RTTS wiki. Will help

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=42965

this page in particular

https://wiki.scn.sap.com/wiki/display/Snippets/Creating+a+dynamic+internal+table+based+on+data

Re: Create dynamic table from existing one

Former Member — Wed, 07 Nov 2018 07:05:33 GMT

Hi guys,

thanks for your fast responce!

RTTS looks as a good way. I've tried this:

DATA(vbeln_descriptor) = CAST cl_abap_datadescr( cl_abap_typedescr=>describe_by_name( 'VBELN' ) ).
      DATA(posnr_descriptor) = CAST cl_abap_datadescr( cl_abap_typedescr=>describe_by_name( 'POSNR' ) ).


      DATA(components) = VALUE abap_component_tab( ( name = 'VBELN'
                                                     type = vbeln_descriptor )
                                                   ( name = 'POSNR'
                                                     type = posnr_descriptor ) ).


*      DATA(value_descriptor) = CAST cl_abap_typedescr( cl_abap_typedescr=>describe_by_name( 'VALUE' ) ).
      DATA(value_descriptor) = CAST cl_abap_datadescr( cl_abap_typedescr=>describe_by_name( 'VALUE' ) ).


      LOOP AT mt_so_itm_qppd_attr INTO DATA(vbeln_row).
        INSERT VALUE #(
            name = vbeln_row-element
            type = value_descriptor )
          INTO TABLE components.
      ENDLOOP.


      DATA(row_descriptor) = cl_abap_structdescr=>get( components ).
      DATA(table_descriptor) = cl_abap_tabledescr=>create( row_descriptor ).


      DATA itab TYPE REF TO data.
      CREATE DATA itab TYPE HANDLE table_descriptor.

But it still not doing what I expect.

Do yu have any Idea where the mistake could be?

Thanks and BR.

Re: Create dynamic table from existing one

former_member358426 — Wed, 07 Nov 2018 09:05:21 GMT

Yeah, at least in our dev. system

DATA(row_descriptor)= cl_abap_structdescr=>get(components).

schould be

DATA(row_descriptor)= cl_abap_structdescr=>create(components).

Kind regards
Stefan

Re: Create dynamic table from existing one

Former Member — Wed, 07 Nov 2018 10:09:50 GMT

Thanks for reply Stefan!

yes, the table now looks good, but I asking myself why the values were not taken into it. Was it in your case the same?

BR. Denis.

Re: Create dynamic table from existing one

former_member358426 — Wed, 07 Nov 2018 11:20:00 GMT

Yes because you have created an empty table now. So you should populate it with your data 😉

Kind regards
Stefan