Database Update Problem

Question

Hi All,
I am having a table control on a screen, I am updating the table control rows and then saving , I want all the rows in the table should get modified in the database table, for this I am using the code below  but it is giving a runtime error 'SAPSQL_ARRAy_INSERT_DUPREC.
Please Suggest.
form update_database.
  data: lt_del_rows type table of ZEXC_REC,
        lt_ins_keys type g_verifier->zexc_rec_keys,
        l_ins_key type g_verifier->ZEXC_REC_key,
        ls_ZEXC_REC type ZEXC_REC,
        ls_outtab like line of gt_outtab,
        lt_instab type table of ZEXC_REC.
§8.When all values are valid, use your internal tables
   to update your table on the database.
First delete lines in data base according to the
keys you remembered within 'g_verifier'.
Imagine a user deleted a row and then entered one with
the same key fields like the deleted ones.
Then both tables (deleted_rows, inserted_rows) have got
an entry of this row.
So if you first inserted the new rows in the data base
and then deleted rows according to 'deleted_rows'
The reentered rows would be lost.
1.Delete Lines:
  call method g_verifier->get_deleted_rows
          importing deleted_rows = lt_del_rows.
  delete ZEXC_REC from table lt_del_rows.
2.Insert Lines:
  call method g_verifier->get_inserted_rows
          importing inserted_rows = lt_ins_keys.
  loop at lt_ins_keys into l_ins_key.
    read table gt_outtab into ls_outtab
     with key LIFNR = l_ins_key-LIFNR
              DOCNO = l_ins_key-DOCNO
              DOCTYP = l_ins_key-DOCTYP
              HIERNO = l_ins_key-HIERNO
              matnr = l_ins_key-matnr.
    if sy-subrc eq 0.
      move-corresponding ls_outtab to ls_ZEXC_REC.
      append ls_ZEXC_REC to lt_instab.
    endif.
  endloop.
  insert ZEXC_REC from table lt_instab.
  commit work.
Insert first default row for ARE1 document
§9.Refresh your internal tables.
  call method g_verifier->refresh_delta_tables.
endform.
Thanks.

Answer 1

You have to write like this
INCLUDE <icon>.
* Predefine a local class for event handling to allow the
* declaration of a reference variable before the class is defined.
CLASS lcl_event_receiver DEFINITION DEFERRED.
CLASS cl_gui_container DEFINITION LOAD.
DATA : o_alvgrid          TYPE REF TO cl_gui_alv_grid,
       i_selected_rows TYPE lvc_t_row.
CLASS lcl_event_receiver DEFINITION.
*   event receiver definitions for ALV actions
  PUBLIC SECTION.
    CLASS-METHODS:
* Status bar
       handle_user_command
        FOR EVENT user_command OF cl_gui_alv_grid
            IMPORTING e_ucomm,
ENDCLASS.
CLASS lcl_event_receiver IMPLEMENTATION.
  METHOD handle_user_command.
* In event handler method for event USER_COMMAND: Query your
*   function codes defined in step 2 and react accordingly.
    CASE e_ucomm.
      WHEN 'FCODE'.
        CALL METHOD o_alvgrid->get_selected_rows
          IMPORTING
            et_index_rows = i_selected_rows
        IF i_selected_rows[] IS INITIAL.
          MESSAGE i153 WITH text-009.
          LEAVE LIST-PROCESSING.
        ENDIF.
  WHEN OTHERS.
    ENDCASE.
  ENDMETHOD.
Have you tried similar to this.
Check for the parameters in get_deleted_rows.
The function should retrieve teh deleted rows when you press a delete button.
So write the code in the user_command for delete functionality.
Make sure all these are there in ur program.
Also SET HANDLER FOR user command should be there.
Verify whether get_deleted_rows is available in the method.