REPORT  Z05_011                                                     .
DATA: BEGIN OF line,
        col1 TYPE i,
        col2 TYPE i,
      END OF line.

DATA itab LIKE STANDARD TABLE OF line.

PERFORM fill CHANGING itab.

PERFORM out  USING    itab.

FORM fill CHANGING f_itab LIKE itab.

  DATA f_line LIKE LINE OF f_itab.

  DO 3 TIMES.
    f_line-col1 = sy-index.
    f_line-col2 = sy-index ** 2.
    APPEND f_line TO f_itab.
  ENDDO.

ENDFORM.

FORM out USING value(f_itab) LIKE itab.

  DATA f_line LIKE LINE OF f_itab.

  LOOP AT f_itab INTO f_line.
    WRITE: / f_line-col1, f_line-col2.
  ENDLOOP.

ENDFORM.