ABAP Select data from SAP table HFILKEL0_OUTPUT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HFILKEL0_OUTPUT 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 HFILKEL0_OUTPUT. 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 HFILKEL0_OUTPUT 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_HFILKEL0_OUTPUT TYPE STANDARD TABLE OF HFILKEL0_OUTPUT,
      WA_HFILKEL0_OUTPUT TYPE HFILKEL0_OUTPUT,
      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: <HFILKEL0_OUTPUT> TYPE HFILKEL0_OUTPUT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HFILKEL0_OUTPUT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HFILKEL0_OUTPUT
  INTO TABLE IT_HFILKEL0_OUTPUT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HFILKEL0_OUTPUT
*  INTO TABLE @DATA(IT_HFILKEL0_OUTPUT2).
*--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_HFILKEL0_OUTPUT INDEX 1 INTO DATA(WA_HFILKEL0_OUTPUT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HFILKEL0_OUTPUT ASSIGNING <HFILKEL0_OUTPUT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HFILKEL0_OUTPUT>-TXRNO = 1.
<HFILKEL0_OUTPUT>-ERNAME = 1.
<HFILKEL0_OUTPUT>-ERADDR = 1.
<HFILKEL0_OUTPUT>-PERNR = 1.
<HFILKEL0_OUTPUT>-SNAME = 1.

ENDLOOP.

LOOP AT IT_HFILKEL0_OUTPUT INTO WA_HFILKEL0_OUTPUT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HFILKEL0_OUTPUT-PERID, sy-vline,
  WA_HFILKEL0_OUTPUT-STRAS, sy-vline,
  WA_HFILKEL0_OUTPUT-PSTLZ, sy-vline,
  WA_HFILKEL0_OUTPUT-ORT01, sy-vline,
  WA_HFILKEL0_OUTPUT-LAND1, sy-vline,
  WA_HFILKEL0_OUTPUT-AWART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HFILKEL0_OUTPUT 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_HFILKEL0_OUTPUT 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_HFILKEL0_OUTPUT INTO WA_HFILKEL0_OUTPUT.


*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_HFILKEL0_OUTPUT_STR, 
TXRNO TYPE STRING,
ERNAME TYPE STRING,
ERADDR TYPE STRING,
PERNR TYPE STRING,
SNAME TYPE STRING,
PERID TYPE STRING,
STRAS TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
LAND1 TYPE STRING,
AWART TYPE STRING,
ABS_BEGDA TYPE STRING,
ABS_ENDDA TYPE STRING,
ABWTG TYPE STRING,
KELTG TYPE STRING,
EARN_BEGDA TYPE STRING,
EARN_ENDDA TYPE STRING,
ABS_EARN TYPE STRING,
WAERS TYPE STRING,
SUM_BEGDA TYPE STRING,
SUM_ENDDA TYPE STRING,
SUM_EARN TYPE STRING,
SUM_BONUS TYPE STRING,
SUM_BONUS_EST TYPE STRING,
SUM_VAC TYPE STRING,
SUM_TRADE TYPE STRING,
SUM_SEN TYPE STRING,
SUM_SEN_EST TYPE STRING,
SUM_YR_BONUS TYPE STRING,
SUM_OTHER TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
TRMDAT TYPE STRING,
SUM_HOLDY TYPE STRING,
SUM_INS TYPE STRING,
HIREDAT TYPE STRING,
PLSTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HFILKEL0_OUTPUT_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_HFILKEL0_OUTPUT_STR-TXRNO sy-vline 
WA_HFILKEL0_OUTPUT_STR-ERNAME sy-vline 
WA_HFILKEL0_OUTPUT_STR-ERADDR sy-vline 
WA_HFILKEL0_OUTPUT_STR-PERNR sy-vline 
WA_HFILKEL0_OUTPUT_STR-SNAME sy-vline 
WA_HFILKEL0_OUTPUT_STR-PERID sy-vline 
WA_HFILKEL0_OUTPUT_STR-STRAS sy-vline 
WA_HFILKEL0_OUTPUT_STR-PSTLZ sy-vline 
WA_HFILKEL0_OUTPUT_STR-ORT01 sy-vline 
WA_HFILKEL0_OUTPUT_STR-LAND1 sy-vline 
WA_HFILKEL0_OUTPUT_STR-AWART sy-vline 
WA_HFILKEL0_OUTPUT_STR-ABS_BEGDA sy-vline 
WA_HFILKEL0_OUTPUT_STR-ABS_ENDDA sy-vline 
WA_HFILKEL0_OUTPUT_STR-ABWTG sy-vline 
WA_HFILKEL0_OUTPUT_STR-KELTG sy-vline 
WA_HFILKEL0_OUTPUT_STR-EARN_BEGDA sy-vline 
WA_HFILKEL0_OUTPUT_STR-EARN_ENDDA sy-vline 
WA_HFILKEL0_OUTPUT_STR-ABS_EARN sy-vline 
WA_HFILKEL0_OUTPUT_STR-WAERS sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_BEGDA sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_ENDDA sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_EARN sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_BONUS sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_BONUS_EST sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_VAC sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_TRADE sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_SEN sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_SEN_EST sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_YR_BONUS sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_OTHER sy-vline 
WA_HFILKEL0_OUTPUT_STR-PERSG sy-vline 
WA_HFILKEL0_OUTPUT_STR-PERSK sy-vline 
WA_HFILKEL0_OUTPUT_STR-TRMDAT sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_HOLDY sy-vline 
WA_HFILKEL0_OUTPUT_STR-SUM_INS sy-vline 
WA_HFILKEL0_OUTPUT_STR-HIREDAT sy-vline 
WA_HFILKEL0_OUTPUT_STR-PLSTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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