ABAP Select data from SAP table FKKOP_DP_GFN into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKOP_DP_GFN table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to FKKOP_DP_GFN. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the FKKOP_DP_GFN table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_FKKOP_DP_GFN TYPE STANDARD TABLE OF FKKOP_DP_GFN,
      WA_FKKOP_DP_GFN TYPE FKKOP_DP_GFN,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <FKKOP_DP_GFN> TYPE FKKOP_DP_GFN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FKKOP_DP_GFN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FKKOP_DP_GFN
  INTO TABLE IT_FKKOP_DP_GFN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKOP_DP_GFN
*  INTO TABLE @DATA(IT_FKKOP_DP_GFN2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_FKKOP_DP_GFN INDEX 1 INTO DATA(WA_FKKOP_DP_GFN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FKKOP_DP_GFN ASSIGNING <FKKOP_DP_GFN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKOP_DP_GFN>-CADOCUMENTNUMBER = 1.
<FKKOP_DP_GFN>-CAREPETITIONITEMNUMBER = 1.
<FKKOP_DP_GFN>-CABPITEMNUMBER = 1.
<FKKOP_DP_GFN>-CASUBITEMNUMBER = 1.
<FKKOP_DP_GFN>-CAVALUEADJMTSEQUENCENUMBER = 1.

ENDLOOP.

LOOP AT IT_FKKOP_DP_GFN INTO WA_FKKOP_DP_GFN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKOP_DP_GFN-CADOWNPAYMENTTAXACCOUNT, sy-vline,
  WA_FKKOP_DP_GFN-CADOWNPAYMENTOFFSETTAXACCOUNT, sy-vline,
  WA_FKKOP_DP_GFN-CATAXAMOUNTINTRANSCURRENCY, sy-vline,
  WA_FKKOP_DP_GFN-CATAXAMOUNTINLOCALCURRENCY, sy-vline,
  WA_FKKOP_DP_GFN-CATAXAMOUNTINSECONDCURRENCY, sy-vline,
  WA_FKKOP_DP_GFN-CATAXAMOUNTINTHIRDCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKOP_DP_GFN you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_FKKOP_DP_GFN TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_FKKOP_DP_GFN INTO WA_FKKOP_DP_GFN.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field CADOWNPAYMENTTAXACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOP_DP_GFN-CADOWNPAYMENTTAXACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOP_DP_GFN-CADOWNPAYMENTTAXACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CADOWNPAYMENTOFFSETTAXACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOP_DP_GFN-CADOWNPAYMENTOFFSETTAXACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOP_DP_GFN-CADOWNPAYMENTOFFSETTAXACCOUNT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FKKOP_DP_GFN_STR, 
CADOCUMENTNUMBER TYPE STRING,
CAREPETITIONITEMNUMBER TYPE STRING,
CABPITEMNUMBER TYPE STRING,
CASUBITEMNUMBER TYPE STRING,
CAVALUEADJMTSEQUENCENUMBER TYPE STRING,
CADOWNPAYMENTTAXACCOUNT TYPE STRING,
CADOWNPAYMENTOFFSETTAXACCOUNT TYPE STRING,
CATAXAMOUNTINTRANSCURRENCY TYPE STRING,
CATAXAMOUNTINLOCALCURRENCY TYPE STRING,
CATAXAMOUNTINSECONDCURRENCY TYPE STRING,
CATAXAMOUNTINTHIRDCURRENCY TYPE STRING,
CATRANSACTIONKEYACCOUNTDETN TYPE STRING,
CACONDITIONTYPE TYPE STRING,
CATAXRATE TYPE STRING,
CATAXBASEAMOUNT TYPE STRING,
CATAXBASEAMOUNTINLOCALCURRENCY TYPE STRING,
TAXJURISDICTION TYPE STRING,
CATAXJURISDICTIONLEVELCOUNTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKOP_DP_GFN_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_FKKOP_DP_GFN_STR-CADOCUMENTNUMBER sy-vline 
WA_FKKOP_DP_GFN_STR-CAREPETITIONITEMNUMBER sy-vline 
WA_FKKOP_DP_GFN_STR-CABPITEMNUMBER sy-vline 
WA_FKKOP_DP_GFN_STR-CASUBITEMNUMBER sy-vline 
WA_FKKOP_DP_GFN_STR-CAVALUEADJMTSEQUENCENUMBER sy-vline 
WA_FKKOP_DP_GFN_STR-CADOWNPAYMENTTAXACCOUNT sy-vline 
WA_FKKOP_DP_GFN_STR-CADOWNPAYMENTOFFSETTAXACCOUNT sy-vline 
WA_FKKOP_DP_GFN_STR-CATAXAMOUNTINTRANSCURRENCY sy-vline 
WA_FKKOP_DP_GFN_STR-CATAXAMOUNTINLOCALCURRENCY sy-vline 
WA_FKKOP_DP_GFN_STR-CATAXAMOUNTINSECONDCURRENCY sy-vline 
WA_FKKOP_DP_GFN_STR-CATAXAMOUNTINTHIRDCURRENCY sy-vline 
WA_FKKOP_DP_GFN_STR-CATRANSACTIONKEYACCOUNTDETN sy-vline 
WA_FKKOP_DP_GFN_STR-CACONDITIONTYPE sy-vline 
WA_FKKOP_DP_GFN_STR-CATAXRATE sy-vline 
WA_FKKOP_DP_GFN_STR-CATAXBASEAMOUNT sy-vline 
WA_FKKOP_DP_GFN_STR-CATAXBASEAMOUNTINLOCALCURRENCY sy-vline 
WA_FKKOP_DP_GFN_STR-TAXJURISDICTION sy-vline 
WA_FKKOP_DP_GFN_STR-CATAXJURISDICTIONLEVELCOUNTER sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.