ABAP Select data from SAP table FINS_S_APAR_ITM_TO_BE_CHG_FLD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FINS_S_APAR_ITM_TO_BE_CHG_FLD 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 FINS_S_APAR_ITM_TO_BE_CHG_FLD. 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 FINS_S_APAR_ITM_TO_BE_CHG_FLD 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_FINS_S_APAR_ITM_TO_BE_CHG_FLD TYPE STANDARD TABLE OF FINS_S_APAR_ITM_TO_BE_CHG_FLD,
      WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD TYPE FINS_S_APAR_ITM_TO_BE_CHG_FLD,
      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: <FINS_S_APAR_ITM_TO_BE_CHG_FLD> TYPE FINS_S_APAR_ITM_TO_BE_CHG_FLD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINS_S_APAR_ITM_TO_BE_CHG_FLD
*  INTO TABLE @DATA(IT_FINS_S_APAR_ITM_TO_BE_CHG_FLD2).
*--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_FINS_S_APAR_ITM_TO_BE_CHG_FLD INDEX 1 INTO DATA(WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINS_S_APAR_ITM_TO_BE_CHG_FLD>-SGTXT = 1.
<FINS_S_APAR_ITM_TO_BE_CHG_FLD>-ZUONR = 1.
<FINS_S_APAR_ITM_TO_BE_CHG_FLD>-HZUON = 1.
<FINS_S_APAR_ITM_TO_BE_CHG_FLD>-XREF1 = 1.
<FINS_S_APAR_ITM_TO_BE_CHG_FLD>-XREF2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-XREF3, sy-vline,
  WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-BVTYP, sy-vline,
  WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-HBKID, sy-vline,
  WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-HKTID, sy-vline,
  WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-KIDNO, sy-vline,
  WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-REBZG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD 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_FINS_S_APAR_ITM_TO_BE_CHG_FLD 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_FINS_S_APAR_ITM_TO_BE_CHG_FLD INTO WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD.


*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 REBZG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-REBZG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-REBZG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field REBZJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-REBZJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-REBZJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field PYAMT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-PYAMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD-PYAMT.
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_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR, 
SGTXT TYPE STRING,
ZUONR TYPE STRING,
HZUON TYPE STRING,
XREF1 TYPE STRING,
XREF2 TYPE STRING,
XREF3 TYPE STRING,
BVTYP TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
KIDNO TYPE STRING,
REBZG TYPE STRING,
REBZJ TYPE STRING,
REBZZ TYPE STRING,
PYCUR TYPE STRING,
PYAMT TYPE STRING,
MABER TYPE STRING,
MADAT TYPE STRING,
MANSP TYPE STRING,
MANST TYPE STRING,
MSCHL TYPE STRING,
ZTERM TYPE STRING,
ZFBDT TYPE STRING,
ZBD1T TYPE STRING,
ZBD2T TYPE STRING,
ZBD3T TYPE STRING,
ZBD1P TYPE STRING,
ZBD2P TYPE STRING,
ZLSCH TYPE STRING,
ZLSPR TYPE STRING,
ZBFIX TYPE STRING,
RSTGR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_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_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-SGTXT sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZUONR sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-HZUON sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-XREF1 sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-XREF2 sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-XREF3 sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-BVTYP sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-HBKID sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-HKTID sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-KIDNO sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-REBZG sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-REBZJ sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-REBZZ sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-PYCUR sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-PYAMT sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-MABER sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-MADAT sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-MANSP sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-MANST sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-MSCHL sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZTERM sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZFBDT sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZBD1T sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZBD2T sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZBD3T sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZBD1P sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZBD2P sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZLSCH sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZLSPR sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-ZBFIX sy-vline 
WA_FINS_S_APAR_ITM_TO_BE_CHG_FLD_STR-RSTGR sy-vline      INTO ld_text SEPARATED BY SPACE.

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