ABAP Select data from SAP table FIWTKR_S_OTHERINCRECA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTKR_S_OTHERINCRECA
*  INTO TABLE @DATA(IT_FIWTKR_S_OTHERINCRECA2).
*--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_FIWTKR_S_OTHERINCRECA INDEX 1 INTO DATA(WA_FIWTKR_S_OTHERINCRECA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTKR_S_OTHERINCRECA>-RECORD_CLASSIF = 1.
<FIWTKR_S_OTHERINCRECA>-DATA_CLASSIF = 1.
<FIWTKR_S_OTHERINCRECA>-TAX_OFFICE = 1.
<FIWTKR_S_OTHERINCRECA>-REPORTING_DATE = 1.
<FIWTKR_S_OTHERINCRECA>-REPORT_INDC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTKR_S_OTHERINCRECA-REPORTING_INDC, sy-vline,
  WA_FIWTKR_S_OTHERINCRECA-VAT_NUMBER, sy-vline,
  WA_FIWTKR_S_OTHERINCRECA-KR_COMPANY_NAME, sy-vline,
  WA_FIWTKR_S_OTHERINCRECA-ENG_COMPANY_NAME, sy-vline,
  WA_FIWTKR_S_OTHERINCRECA-CORP_GRP_NUM, sy-vline,
  WA_FIWTKR_S_OTHERINCRECA-REP_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTKR_S_OTHERINCRECA 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_FIWTKR_S_OTHERINCRECA 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_FIWTKR_S_OTHERINCRECA INTO WA_FIWTKR_S_OTHERINCRECA.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_FIWTKR_S_OTHERINCRECA_STR, 
RECORD_CLASSIF TYPE STRING,
DATA_CLASSIF TYPE STRING,
TAX_OFFICE TYPE STRING,
REPORTING_DATE TYPE STRING,
REPORT_INDC TYPE STRING,
REPORTING_INDC TYPE STRING,
VAT_NUMBER TYPE STRING,
KR_COMPANY_NAME TYPE STRING,
ENG_COMPANY_NAME TYPE STRING,
CORP_GRP_NUM TYPE STRING,
REP_NAME TYPE STRING,
TEL_NUM TYPE STRING,
NUM_B_REC TYPE STRING,
KOR_LANG_INDC TYPE STRING,
REPORT_PERIOD TYPE STRING,
ADJUST_INDC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTKR_S_OTHERINCRECA_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_FIWTKR_S_OTHERINCRECA_STR-RECORD_CLASSIF sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-DATA_CLASSIF sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-TAX_OFFICE sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-REPORTING_DATE sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-REPORT_INDC sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-REPORTING_INDC sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-VAT_NUMBER sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-KR_COMPANY_NAME sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-ENG_COMPANY_NAME sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-CORP_GRP_NUM sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-REP_NAME sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-TEL_NUM sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-NUM_B_REC sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-KOR_LANG_INDC sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-REPORT_PERIOD sy-vline 
WA_FIWTKR_S_OTHERINCRECA_STR-ADJUST_INDC sy-vline      INTO ld_text SEPARATED BY SPACE.

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