ABAP Select data from SAP table FINS_ACDOCA_CHG_FI_FIELDS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FINS_ACDOCA_CHG_FI_FIELDS 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_ACDOCA_CHG_FI_FIELDS. 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_ACDOCA_CHG_FI_FIELDS 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_ACDOCA_CHG_FI_FIELDS TYPE STANDARD TABLE OF FINS_ACDOCA_CHG_FI_FIELDS,
      WA_FINS_ACDOCA_CHG_FI_FIELDS TYPE FINS_ACDOCA_CHG_FI_FIELDS,
      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_ACDOCA_CHG_FI_FIELDS> TYPE FINS_ACDOCA_CHG_FI_FIELDS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINS_ACDOCA_CHG_FI_FIELDS
*  INTO TABLE @DATA(IT_FINS_ACDOCA_CHG_FI_FIELDS2).
*--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_ACDOCA_CHG_FI_FIELDS INDEX 1 INTO DATA(WA_FINS_ACDOCA_CHG_FI_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINS_ACDOCA_CHG_FI_FIELDS>-ZUONR = 1.
<FINS_ACDOCA_CHG_FI_FIELDS>-REBZG = 1.
<FINS_ACDOCA_CHG_FI_FIELDS>-REBZJ = 1.
<FINS_ACDOCA_CHG_FI_FIELDS>-REBZZ = 1.
<FINS_ACDOCA_CHG_FI_FIELDS>-REBZT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINS_ACDOCA_CHG_FI_FIELDS-SGTXT, sy-vline,
  WA_FINS_ACDOCA_CHG_FI_FIELDS-HBKID, sy-vline,
  WA_FINS_ACDOCA_CHG_FI_FIELDS-HKTID, sy-vline,
  WA_FINS_ACDOCA_CHG_FI_FIELDS-PERNR, sy-vline,
  WA_FINS_ACDOCA_CHG_FI_FIELDS-REVERSAL_IND, sy-vline,
  WA_FINS_ACDOCA_CHG_FI_FIELDS-AUGDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINS_ACDOCA_CHG_FI_FIELDS 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_ACDOCA_CHG_FI_FIELDS 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_ACDOCA_CHG_FI_FIELDS INTO WA_FINS_ACDOCA_CHG_FI_FIELDS.


*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_ACDOCA_CHG_FI_FIELDS-REBZG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_ACDOCA_CHG_FI_FIELDS-REBZG.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field ACRLOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_ACDOCA_CHG_FI_FIELDS-ACRLOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_ACDOCA_CHG_FI_FIELDS-ACRLOGSYS.
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_ACDOCA_CHG_FI_FIELDS_STR, 
ZUONR TYPE STRING,
REBZG TYPE STRING,
REBZJ TYPE STRING,
REBZZ TYPE STRING,
REBZT TYPE STRING,
SGTXT TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
PERNR TYPE STRING,
REVERSAL_IND TYPE STRING,
AUGDT TYPE STRING,
AUGBL TYPE STRING,
AUGGJ TYPE STRING,
REF_AWORG TYPE STRING,
REF_AWREF TYPE STRING,
NETDT TYPE STRING,
ACROBJTYPE TYPE STRING,
ACRLOGSYS TYPE STRING,
ACROBJ_ID TYPE STRING,
ACRSOBJ_ID TYPE STRING,
ACRITMTYPE TYPE STRING,
ACRREFOBJ_ID TYPE STRING,
ACRVALDAT TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,
PEROP_BEG TYPE STRING,
PEROP_END TYPE STRING,
VALUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINS_ACDOCA_CHG_FI_FIELDS_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_ACDOCA_CHG_FI_FIELDS_STR-ZUONR sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-REBZG sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-REBZJ sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-REBZZ sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-REBZT sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-SGTXT sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-HBKID sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-HKTID sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-PERNR sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-REVERSAL_IND sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-AUGDT sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-AUGBL sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-AUGGJ sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-REF_AWORG sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-REF_AWREF sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-NETDT sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-ACROBJTYPE sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-ACRLOGSYS sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-ACROBJ_ID sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-ACRSOBJ_ID sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-ACRITMTYPE sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-ACRREFOBJ_ID sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-ACRVALDAT sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-DUMMY_INCL_EEW_COBL sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-PEROP_BEG sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-PEROP_END sy-vline 
WA_FINS_ACDOCA_CHG_FI_FIELDS_STR-VALUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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