ABAP Select data from SAP table HRDEBW_ADMIN_01_SHOW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRDEBW_ADMIN_01_SHOW 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_ADMIN_01_SHOW. 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_ADMIN_01_SHOW 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_ADMIN_01_SHOW TYPE STANDARD TABLE OF HRDEBW_ADMIN_01_SHOW,
      WA_HRDEBW_ADMIN_01_SHOW TYPE HRDEBW_ADMIN_01_SHOW,
      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_ADMIN_01_SHOW> TYPE HRDEBW_ADMIN_01_SHOW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRDEBW_ADMIN_01_SHOW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRDEBW_ADMIN_01_SHOW
  INTO TABLE IT_HRDEBW_ADMIN_01_SHOW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDEBW_ADMIN_01_SHOW
*  INTO TABLE @DATA(IT_HRDEBW_ADMIN_01_SHOW2).
*--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_ADMIN_01_SHOW INDEX 1 INTO DATA(WA_HRDEBW_ADMIN_01_SHOW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRDEBW_ADMIN_01_SHOW ASSIGNING <HRDEBW_ADMIN_01_SHOW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDEBW_ADMIN_01_SHOW>-PERNR = 1.
<HRDEBW_ADMIN_01_SHOW>-WERKS = 1.
<HRDEBW_ADMIN_01_SHOW>-BTRTL = 1.
<HRDEBW_ADMIN_01_SHOW>-MSGID = 1.
<HRDEBW_ADMIN_01_SHOW>-MNR = 1.

ENDLOOP.

LOOP AT IT_HRDEBW_ADMIN_01_SHOW INTO WA_HRDEBW_ADMIN_01_SHOW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDEBW_ADMIN_01_SHOW-DATUM, sy-vline,
  WA_HRDEBW_ADMIN_01_SHOW-GDATE, sy-vline,
  WA_HRDEBW_ADMIN_01_SHOW-GTIME, sy-vline,
  WA_HRDEBW_ADMIN_01_SHOW-UNAME, sy-vline,
  WA_HRDEBW_ADMIN_01_SHOW-STATUS, sy-vline,
  WA_HRDEBW_ADMIN_01_SHOW-STRNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDEBW_ADMIN_01_SHOW 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_ADMIN_01_SHOW 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_ADMIN_01_SHOW INTO WA_HRDEBW_ADMIN_01_SHOW.


*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_ADMIN_01_SHOW_STR, 
PERNR TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
MSGID TYPE STRING,
MNR TYPE STRING,
DATUM TYPE STRING,
GDATE TYPE STRING,
GTIME TYPE STRING,
UNAME TYPE STRING,
STATUS TYPE STRING,
STRNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDEBW_ADMIN_01_SHOW_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_ADMIN_01_SHOW_STR-PERNR sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-WERKS sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-BTRTL sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-MSGID sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-MNR sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-DATUM sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-GDATE sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-GTIME sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-UNAME sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-STATUS sy-vline 
WA_HRDEBW_ADMIN_01_SHOW_STR-STRNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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