topic Re: loop into loop with dynamic field name in Application Development and Automation Discussions

loop into loop with dynamic field name

Former Member — Tue, 25 Aug 2020 12:00:24 GMT

hi all,

i'm Software developer, and now i learn abap for do task in my work.

TL:DR - problem with loop table in another table with dynamic fields.

THE PROBLEM:

i have 2 tables like this:

TABLE 1: HR table with many colums and row..

TABLE 2 :
table with list of columns that i need to read from table 1

see this image:

in table 1,

i need loop all row,

and i need to check all the fields from table 2.

.if have "X" in the field, i need print the field description from table 2.

i try do it with nested loop (loop table 1, and each loop iteration loop table 2 and check all the fields of the row).

and i can't use variable on table-<FIelds> (i need variable for the loop in <Fields> ).

MY CODE:

    LOOP AT lt_hrp9229  INTO ls_hrp9229 .<br>       LOOP AT lt_otype_fields INTO ls_otype_fields .
       <br>       IF ls_hrp9229-ls_otype_fields-FIELD_NAME = 'X'.
        ev_descript_data = ev_descript_data && ','  &&  ls_otype_fields-Field_description.<br>
       ENDIF.
     ENDLOOP.
   ENDLOOP.

I have problem in this row:

IF ls_hrp9229-ls_otype_fields-FIELD_NAME = 'X'

i can't use dynamic field name from the loop.

thanks.

Re: loop into loop with dynamic field name

former_member30 — Tue, 25 Aug 2020 12:00:32 GMT

Hi and welcome to the SAP Community!

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Re: loop into loop with dynamic field name

matt — Tue, 25 Aug 2020 12:17:09 GMT

You need ASSIGN COMPONENT. I've removed the prefixes and replaced your variables with slightly more meaningful names.

LOOP AT hrp9229 INTO hrp9229_record.
  LOOP AT otype_fields INTO field .
    ASSIGN COMPONENT field-fieldname OF STRUCTURE hrp9229_record
      TO FIELD-SYMBOL(<field_value>).
    IF <field_value> = 'X'.
        ev_descript_data = ev_descript_data && ','  && 
                        field-Field_description.
    ENDIF.
  ENDLOOP.
ENDLOOP