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Generating and accessing table attributes at runtime

Posted on Feb 10, 2005 at 05:14 PM 13 Views

Hi All,

I am trying to access an internal table's attributes using attribute names generated at runtime. For example,

-

DATA: cnt TYPE n VALUE 1,

new_field TYPE char10.

DO 10 TIMES.

concatenate 'test' cnt into new_field.

write \ itab-new_field.

add 1 to cnt.

ENDDO.

-

But unfortunately, it gives me an error because component itab-new_field doesn't exist. However, component itab-test1, itab-test2, itab-test3 does exist.

Is there a way to refer to table components through dynamic variables rather than component names?

Thanks in advance for your help.

Roman D.

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    author's profile photo Rich Heilman
    Rich Heilman
    Posted on Feb 10, 2005 at 05:17 PM
    2

    Yes, I believe you can do this thru field symbols.

    Regards,

    Rich Heilman

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    • Rich Heilman
      Feb 10, 2005 at 05:24 PM

      Here is a short sample. 

      
report zrich_0001 .

data: begin of x occurs 0,
      test1 type c,
      test2 type c,
      test3 type c,
      end of x.


data: cnt type n value 1,
      new_field type char10.

field-symbols: <fs> .

start-of-selection.

  x-test1 = '1'.
  x-test2 = '2'.
  x-test3 = '3'.
  append x.

  x-test1 = '4'.
  x-test2 = '5'.
  x-test3 = '6'.
  append x.


  loop at x.
    do 3 times.
      concatenate 'x-test' cnt into new_field.
      assign (new_field) to <fs>.
      write:/  <fs>.
      add 1 to cnt.
    enddo.
    cnt = 1.
  endloop.

      Regards,

      Rich Heilman

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