ABAP Select data from SAP table HRDEBW_PARA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDEBW_PARA
*  INTO TABLE @DATA(IT_HRDEBW_PARA2).
*--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_HRDEBW_PARA INDEX 1 INTO DATA(WA_HRDEBW_PARA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDEBW_PARA>-PA01 = 1.
<HRDEBW_PARA>-PA02 = 1.
<HRDEBW_PARA>-PA09 = 1.
<HRDEBW_PARA>-PA10 = 1.
<HRDEBW_PARA>-PABEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDEBW_PARA-PAACT, sy-vline,
  WA_HRDEBW_PARA-PACOLM, sy-vline,
  WA_HRDEBW_PARA-PALIST, sy-vline,
  WA_HRDEBW_PARA-PATEST, sy-vline,
  WA_HRDEBW_PARA-PAPROT, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_HRDEBW_PARA 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_HRDEBW_PARA 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_HRDEBW_PARA INTO WA_HRDEBW_PARA.


*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_HRDEBW_PARA_STR, 
PA01 TYPE STRING,
PA02 TYPE STRING,
PA09 TYPE STRING,
PA10 TYPE STRING,
PABEL TYPE STRING,
PAACT TYPE STRING,
PACOLM TYPE STRING,
PALIST TYPE STRING,
PATEST TYPE STRING,
PAPROT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDEBW_PARA_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_HRDEBW_PARA_STR-PA01 sy-vline 
WA_HRDEBW_PARA_STR-PA02 sy-vline 
WA_HRDEBW_PARA_STR-PA09 sy-vline 
WA_HRDEBW_PARA_STR-PA10 sy-vline 
WA_HRDEBW_PARA_STR-PABEL sy-vline 
WA_HRDEBW_PARA_STR-PAACT sy-vline 
WA_HRDEBW_PARA_STR-PACOLM sy-vline 
WA_HRDEBW_PARA_STR-PALIST sy-vline 
WA_HRDEBW_PARA_STR-PATEST sy-vline 
WA_HRDEBW_PARA_STR-PAPROT sy-vline      INTO ld_text SEPARATED BY SPACE.

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