ABAP Select data from SAP table HRF02_FORM_OUTPUT_SELECTION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRF02_FORM_OUTPUT_SELECTION 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 HRF02_FORM_OUTPUT_SELECTION. 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 HRF02_FORM_OUTPUT_SELECTION 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_HRF02_FORM_OUTPUT_SELECTION TYPE STANDARD TABLE OF HRF02_FORM_OUTPUT_SELECTION,
      WA_HRF02_FORM_OUTPUT_SELECTION TYPE HRF02_FORM_OUTPUT_SELECTION,
      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: <HRF02_FORM_OUTPUT_SELECTION> TYPE HRF02_FORM_OUTPUT_SELECTION.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRF02_FORM_OUTPUT_SELECTION.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRF02_FORM_OUTPUT_SELECTION
  INTO TABLE IT_HRF02_FORM_OUTPUT_SELECTION.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRF02_FORM_OUTPUT_SELECTION
*  INTO TABLE @DATA(IT_HRF02_FORM_OUTPUT_SELECTION2).
*--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_HRF02_FORM_OUTPUT_SELECTION INDEX 1 INTO DATA(WA_HRF02_FORM_OUTPUT_SELECTION2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRF02_FORM_OUTPUT_SELECTION ASSIGNING <HRF02_FORM_OUTPUT_SELECTION>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRF02_FORM_OUTPUT_SELECTION>-USE_SFORM = 1.
<HRF02_FORM_OUTPUT_SELECTION>-USE_ALV = 1.
<HRF02_FORM_OUTPUT_SELECTION>-USE_EXCEL = 1.
<HRF02_FORM_OUTPUT_SELECTION>-SMARTFORM = 1.
<HRF02_FORM_OUTPUT_SELECTION>-PROGRAM_MODE = 1.

ENDLOOP.

LOOP AT IT_HRF02_FORM_OUTPUT_SELECTION INTO WA_HRF02_FORM_OUTPUT_SELECTION.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRF02_FORM_OUTPUT_SELECTION-NOSTAT, sy-vline,
  WA_HRF02_FORM_OUTPUT_SELECTION-SFPER, sy-vline,
  WA_HRF02_FORM_OUTPUT_SELECTION-PLANG, sy-vline,
  WA_HRF02_FORM_OUTPUT_SELECTION-SFMODE, sy-vline,
  WA_HRF02_FORM_OUTPUT_SELECTION-TOOAR, sy-vline,
  WA_HRF02_FORM_OUTPUT_SELECTION-SIMCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRF02_FORM_OUTPUT_SELECTION 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_HRF02_FORM_OUTPUT_SELECTION 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_HRF02_FORM_OUTPUT_SELECTION INTO WA_HRF02_FORM_OUTPUT_SELECTION.


*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_HRF02_FORM_OUTPUT_SELECTION_STR, 
USE_SFORM TYPE STRING,
USE_ALV TYPE STRING,
USE_EXCEL TYPE STRING,
SMARTFORM TYPE STRING,
PROGRAM_MODE TYPE STRING,
NOSTAT TYPE STRING,
SFPER TYPE STRING,
PLANG TYPE STRING,
SFMODE TYPE STRING,
TOOAR TYPE STRING,
SIMCE TYPE STRING,
IPVIEW TYPE STRING,
ADDRET TYPE STRING,
INFTBE TYPE STRING,
ARCH_TOO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRF02_FORM_OUTPUT_SELECTION_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_HRF02_FORM_OUTPUT_SELECTION_STR-USE_SFORM sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-USE_ALV sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-USE_EXCEL sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-SMARTFORM sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-PROGRAM_MODE sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-NOSTAT sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-SFPER sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-PLANG sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-SFMODE sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-TOOAR sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-SIMCE sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-IPVIEW sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-ADDRET sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-INFTBE sy-vline 
WA_HRF02_FORM_OUTPUT_SELECTION_STR-ARCH_TOO sy-vline      INTO ld_text SEPARATED BY SPACE.

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