How append field to table?

Question

Hello all.
Have.
DATA  wa_table TYPE TABLE OF mytable  WITH HEADER LINE.
need appnd field to wa_table in abap.
how?

Answer 1

see the full code  how the data is   select  into  work area  and then to your internal table  .
"first example
TYPES: BEGIN OF t_bseg,
*include structure bseg.
  bukrs     LIKE bseg-bukrs,
  belnr     LIKE bseg-belnr,
  gjahr     LIKE bseg-gjahr,
  buzei     LIKE bseg-buzei,
  mwskz     LIKE bseg-mwskz,         "Tax code
  umsks     LIKE bseg-umsks,         "Special G/L transaction type
  prctr     LIKE bseg-prctr,         "Profit Centre
  hkont     LIKE bseg-hkont,         "G/L account
  xauto     LIKE bseg-xauto,
  koart     LIKE bseg-koart,
  dmbtr     LIKE bseg-dmbtr,
  mwart     LIKE bseg-mwart,
  hwbas     LIKE bseg-hwbas,
  aufnr     LIKE bseg-aufnr,
  projk     LIKE bseg-projk,
  shkzg     LIKE bseg-shkzg,
  kokrs     LIKE bseg-kokrs,
END OF t_bseg.
DATA: it_bseg TYPE STANDARD TABLE OF t_bseg INITIAL SIZE 0,
      wa_bseg TYPE t_bseg.
SELECT bukrs belnr gjahr buzei mwskz umsks prctr hkont xauto koart
       dmbtr mwart hwbas aufnr projk shkzg kokrs
  FROM bseg
  INTO wa_bseg.
  APPEND wa_bseg TO it_bseg.
ENDSELECT.
"second example :
  DATA  : lt_bsik      TYPE  TABLE OF txi_bsik ,
          ls_bsik      LIKE  LINE OF  lt_bsik.
  DATA : ld_cursor   TYPE cursor.
OPEN CURSOR ld_cursor  FOR
      SELECT * FROM bsak
        WHERE budat LE ls_butab-keydt
        AND   augdt GT ls_butab-keydt
        AND   bukrs  = ls_butab-bukrs.
    DO.
      FETCH NEXT CURSOR ld_cursor
            INTO CORRESPONDING FIELDS OF TABLE lt_bsik
            PACKAGE SIZE txilm_package_size.
      IF sy-subrc NE 0.
        CLOSE CURSOR ld_cursor.
        EXIT.
      ENDIF.
      SORT lt_bsik BY bukrs gjahr belnr.
      LOOP AT lt_bsik INTO ls_bsik.
"if change   in ls_bsik   move to lt_bsik .
        MODIFY lt_bsik FROM ls_bsik.
      ENDLOOP.
ENDDO.
reward  points if it is usefull...
Girish