ABAP Select data from SAP table HRDESV_A1_S_DBES into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRDESV_A1_S_DBES 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 HRDESV_A1_S_DBES. 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 HRDESV_A1_S_DBES 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_HRDESV_A1_S_DBES TYPE STANDARD TABLE OF HRDESV_A1_S_DBES,
      WA_HRDESV_A1_S_DBES TYPE HRDESV_A1_S_DBES,
      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: <HRDESV_A1_S_DBES> TYPE HRDESV_A1_S_DBES.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRDESV_A1_S_DBES.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRDESV_A1_S_DBES
  INTO TABLE IT_HRDESV_A1_S_DBES.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDESV_A1_S_DBES
*  INTO TABLE @DATA(IT_HRDESV_A1_S_DBES2).
*--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_HRDESV_A1_S_DBES INDEX 1 INTO DATA(WA_HRDESV_A1_S_DBES2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRDESV_A1_S_DBES ASSIGNING <HRDESV_A1_S_DBES>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDESV_A1_S_DBES>-MITGLIEDSSTAAT = 1.
<HRDESV_A1_S_DBES>-BEFRISTUNG = 1.
<HRDESV_A1_S_DBES>-ENTS_BEGDA = 1.
<HRDESV_A1_S_DBES>-ENTS_ENDDA = 1.
<HRDESV_A1_S_DBES>-TAETIGKEIT = 1.

ENDLOOP.

LOOP AT IT_HRDESV_A1_S_DBES INTO WA_HRDESV_A1_S_DBES.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDESV_A1_S_DBES-ART, sy-vline,
  WA_HRDESV_A1_S_DBES-EINSATZ, sy-vline,
  WA_HRDESV_A1_S_DBES-BEGDA_1, sy-vline,
  WA_HRDESV_A1_S_DBES-ENDDA_1, sy-vline,
  WA_HRDESV_A1_S_DBES-BEGDA_2, sy-vline,
  WA_HRDESV_A1_S_DBES-ENDDA_2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDESV_A1_S_DBES 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_HRDESV_A1_S_DBES 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_HRDESV_A1_S_DBES INTO WA_HRDESV_A1_S_DBES.


*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_HRDESV_A1_S_DBES_STR, 
MITGLIEDSSTAAT TYPE STRING,
BEFRISTUNG TYPE STRING,
ENTS_BEGDA TYPE STRING,
ENTS_ENDDA TYPE STRING,
TAETIGKEIT TYPE STRING,
ART TYPE STRING,
EINSATZ TYPE STRING,
BEGDA_1 TYPE STRING,
ENDDA_1 TYPE STRING,
BEGDA_2 TYPE STRING,
ENDDA_2 TYPE STRING,
BEGDA_3 TYPE STRING,
ENDDA_3 TYPE STRING,
BEGDA_4 TYPE STRING,
ENDDA_4 TYPE STRING,
BEGDA_5 TYPE STRING,
ENDDA_5 TYPE STRING,
UEBERLASSUNG TYPE STRING,
ABLOESUNG TYPE STRING,
GESCHLECHT TYPE STRING,
VORNAME TYPE STRING,
FAMILIENNAME TYPE STRING,
VORSATZ TYPE STRING,
NAMENSZUSATZ TYPE STRING,
TITEL TYPE STRING,
GEBDATUM TYPE STRING,
BEGDA_GEZ TYPE STRING,
ENDDA_GEZ TYPE STRING,
BEGDA_TEZ TYPE STRING,
ENDDA_TEZ TYPE STRING,
GRUND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDESV_A1_S_DBES_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_HRDESV_A1_S_DBES_STR-MITGLIEDSSTAAT sy-vline 
WA_HRDESV_A1_S_DBES_STR-BEFRISTUNG sy-vline 
WA_HRDESV_A1_S_DBES_STR-ENTS_BEGDA sy-vline 
WA_HRDESV_A1_S_DBES_STR-ENTS_ENDDA sy-vline 
WA_HRDESV_A1_S_DBES_STR-TAETIGKEIT sy-vline 
WA_HRDESV_A1_S_DBES_STR-ART sy-vline 
WA_HRDESV_A1_S_DBES_STR-EINSATZ sy-vline 
WA_HRDESV_A1_S_DBES_STR-BEGDA_1 sy-vline 
WA_HRDESV_A1_S_DBES_STR-ENDDA_1 sy-vline 
WA_HRDESV_A1_S_DBES_STR-BEGDA_2 sy-vline 
WA_HRDESV_A1_S_DBES_STR-ENDDA_2 sy-vline 
WA_HRDESV_A1_S_DBES_STR-BEGDA_3 sy-vline 
WA_HRDESV_A1_S_DBES_STR-ENDDA_3 sy-vline 
WA_HRDESV_A1_S_DBES_STR-BEGDA_4 sy-vline 
WA_HRDESV_A1_S_DBES_STR-ENDDA_4 sy-vline 
WA_HRDESV_A1_S_DBES_STR-BEGDA_5 sy-vline 
WA_HRDESV_A1_S_DBES_STR-ENDDA_5 sy-vline 
WA_HRDESV_A1_S_DBES_STR-UEBERLASSUNG sy-vline 
WA_HRDESV_A1_S_DBES_STR-ABLOESUNG sy-vline 
WA_HRDESV_A1_S_DBES_STR-GESCHLECHT sy-vline 
WA_HRDESV_A1_S_DBES_STR-VORNAME sy-vline 
WA_HRDESV_A1_S_DBES_STR-FAMILIENNAME sy-vline 
WA_HRDESV_A1_S_DBES_STR-VORSATZ sy-vline 
WA_HRDESV_A1_S_DBES_STR-NAMENSZUSATZ sy-vline 
WA_HRDESV_A1_S_DBES_STR-TITEL sy-vline 
WA_HRDESV_A1_S_DBES_STR-GEBDATUM sy-vline 
WA_HRDESV_A1_S_DBES_STR-BEGDA_GEZ sy-vline 
WA_HRDESV_A1_S_DBES_STR-ENDDA_GEZ sy-vline 
WA_HRDESV_A1_S_DBES_STR-BEGDA_TEZ sy-vline 
WA_HRDESV_A1_S_DBES_STR-ENDDA_TEZ sy-vline 
WA_HRDESV_A1_S_DBES_STR-GRUND sy-vline      INTO ld_text SEPARATED BY SPACE.

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