How to modify DataBase Table with an internal Table

Question

Hi, Friends.
I am coping Data from a Database table to an internal table after modifying data in the internal table I want to modify the db table according to the modification in the internal table. can some one help me out in this way, i am doing this modification in Table Control in Screen programing.
My Code is as follow.
MODULE zfsl_stinf_tc_init OUTPUT.
  IF tc_copy IS INITIAL.
    SELECT * INTO CORRESPONDING FIELDS OF TABLE it_zfsl_stinf FROM zfsl_stinf.
    tc_copy = 'X'.
    REFRESH CONTROL 'TC_FOR_ZFSL_STINF' FROM SCREEN '0001'.
  ENDIF.
ENDMODULE.                 " zfsl_stinf_init  OUTPUT
*&      Module  zfsl_stinf_tc_move  OUTPUT
      text
MODULE zfsl_stinf_tc_move OUTPUT.
  MOVE-CORRESPONDING wa_it_zfsl_stinf TO zfsl_stinf.
ENDMODULE.                 " zfsl_stinf_tc_move  OUTPUT
*&      Module  STATUS_0001  OUTPUT
      text
MODULE status_0001 OUTPUT.
  SET PF-STATUS 'ZFSL_SCREEN_1ONLY'.
SET TITLEBAR 'xxx'.
ENDMODULE.                 " STATUS_0001  OUTPUT
*&      Module  zfsl_stinf_tc_modify  INPUT
      text
MODULE zfsl_stinf_tc_modify INPUT.
  MOVE-CORRESPONDING zfsl_stinf TO wa_it_zfsl_stinf.
  MODIFY it_zfsl_stinf FROM wa_it_zfsl_stinf INDEX tc_for_zfsl_stinf-current_line.
_*"" here i have the modified internal table  " it_zfsl_stinf "*_
ENDMODULE.                 " zfsl_stinf_tc_modify  INPUT
Kind regards,
Faisal

Answer 1

Hi
Here you are modifying your dbtable in module pool programming
so  better to use work area to modify the database table
example:
data: itab type table of zfsl_stinf .
data: wa_itab type itab.
select single * from zfsl_stinf INTO itab WHERE <condition>
(pass your values to wa_itab.)
modify zfsl_stinf from values of wa_itab.
Regards
Srinivasu