ABAP Select data from SAP table HRD3DBBG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRD3DBBG 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 HRD3DBBG. 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 HRD3DBBG 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_HRD3DBBG TYPE STANDARD TABLE OF HRD3DBBG,
      WA_HRD3DBBG TYPE HRD3DBBG,
      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: <HRD3DBBG> TYPE HRD3DBBG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRD3DBBG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRD3DBBG
  INTO TABLE IT_HRD3DBBG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRD3DBBG
*  INTO TABLE @DATA(IT_HRD3DBBG2).
*--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_HRD3DBBG INDEX 1 INTO DATA(WA_HRD3DBBG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRD3DBBG ASSIGNING <HRD3DBBG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRD3DBBG>-KENNZST = 1.
<HRD3DBBG>-GAEGKV = 1.
<HRD3DBBG>-GAEGRV = 1.
<HRD3DBBG>-GAEGAV = 1.
<HRD3DBBG>-EGAKV = 1.

ENDLOOP.

LOOP AT IT_HRD3DBBG INTO WA_HRD3DBBG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRD3DBBG-EGARV, sy-vline,
  WA_HRD3DBBG-EGAAV, sy-vline,
  WA_HRD3DBBG-ZRBG, sy-vline,
  WA_HRD3DBBG-ZREN, sy-vline,
  WA_HRD3DBBG-KENNZRK, sy-vline,
  WA_HRD3DBBG-SVTG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRD3DBBG 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_HRD3DBBG 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_HRD3DBBG INTO WA_HRD3DBBG.


*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_HRD3DBBG_STR, 
KENNZST TYPE STRING,
GAEGKV TYPE STRING,
GAEGRV TYPE STRING,
GAEGAV TYPE STRING,
EGAKV TYPE STRING,
EGARV TYPE STRING,
EGAAV TYPE STRING,
ZRBG TYPE STRING,
ZREN TYPE STRING,
KENNZRK TYPE STRING,
SVTG TYPE STRING,
KENNZKVL TYPE STRING,
KENNZRVL TYPE STRING,
KENNZAVL TYPE STRING,
KENNZKVE TYPE STRING,
KENNZRVE TYPE STRING,
KENNZAVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRD3DBBG_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_HRD3DBBG_STR-KENNZST sy-vline 
WA_HRD3DBBG_STR-GAEGKV sy-vline 
WA_HRD3DBBG_STR-GAEGRV sy-vline 
WA_HRD3DBBG_STR-GAEGAV sy-vline 
WA_HRD3DBBG_STR-EGAKV sy-vline 
WA_HRD3DBBG_STR-EGARV sy-vline 
WA_HRD3DBBG_STR-EGAAV sy-vline 
WA_HRD3DBBG_STR-ZRBG sy-vline 
WA_HRD3DBBG_STR-ZREN sy-vline 
WA_HRD3DBBG_STR-KENNZRK sy-vline 
WA_HRD3DBBG_STR-SVTG sy-vline 
WA_HRD3DBBG_STR-KENNZKVL sy-vline 
WA_HRD3DBBG_STR-KENNZRVL sy-vline 
WA_HRD3DBBG_STR-KENNZAVL sy-vline 
WA_HRD3DBBG_STR-KENNZKVE sy-vline 
WA_HRD3DBBG_STR-KENNZRVE sy-vline 
WA_HRD3DBBG_STR-KENNZAVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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