ABAP Select data from SAP table HRD3DBBM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRD3DBBM 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 HRD3DBBM. 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 HRD3DBBM 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_HRD3DBBM TYPE STANDARD TABLE OF HRD3DBBM,
      WA_HRD3DBBM TYPE HRD3DBBM,
      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: <HRD3DBBM> TYPE HRD3DBBM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRD3DBBM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRD3DBBM
  INTO TABLE IT_HRD3DBBM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRD3DBBM
*  INTO TABLE @DATA(IT_HRD3DBBM2).
*--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_HRD3DBBM INDEX 1 INTO DATA(WA_HRD3DBBM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRD3DBBM ASSIGNING <HRD3DBBM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRD3DBBM>-KENNZST = 1.
<HRD3DBBM>-AVSNR = 1.
<HRD3DBBM>-APERSGR = 1.
<HRD3DBBM>-AGD = 1.
<HRD3DBBM>-ASASC = 1.

ENDLOOP.

LOOP AT IT_HRD3DBBM INTO WA_HRD3DBBM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRD3DBBM-AKENNZGLE, sy-vline,
  WA_HRD3DBBM-AZRBG, sy-vline,
  WA_HRD3DBBM-AZREN, sy-vline,
  WA_HRD3DBBM-AEG, sy-vline,
  WA_HRD3DBBM-ABYGR, sy-vline,
  WA_HRD3DBBM-ATTSC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRD3DBBM 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_HRD3DBBM 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_HRD3DBBM INTO WA_HRD3DBBM.


*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_HRD3DBBM_STR, 
KENNZST TYPE STRING,
AVSNR TYPE STRING,
APERSGR TYPE STRING,
AGD TYPE STRING,
ASASC TYPE STRING,
AKENNZGLE TYPE STRING,
AZRBG TYPE STRING,
AZREN TYPE STRING,
AEG TYPE STRING,
ABYGR TYPE STRING,
ATTSC TYPE STRING,
AKENNZRK TYPE STRING,
AKENNZMF TYPE STRING,
AZRBG_KV TYPE STRING,
AZREN_KV TYPE STRING,
AEZEG TYPE STRING,
ALFD_KV TYPE STRING,
ALFD_RV TYPE STRING,
ALFDAV TYPE STRING,
AEGRB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRD3DBBM_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_HRD3DBBM_STR-KENNZST sy-vline 
WA_HRD3DBBM_STR-AVSNR sy-vline 
WA_HRD3DBBM_STR-APERSGR sy-vline 
WA_HRD3DBBM_STR-AGD sy-vline 
WA_HRD3DBBM_STR-ASASC sy-vline 
WA_HRD3DBBM_STR-AKENNZGLE sy-vline 
WA_HRD3DBBM_STR-AZRBG sy-vline 
WA_HRD3DBBM_STR-AZREN sy-vline 
WA_HRD3DBBM_STR-AEG sy-vline 
WA_HRD3DBBM_STR-ABYGR sy-vline 
WA_HRD3DBBM_STR-ATTSC sy-vline 
WA_HRD3DBBM_STR-AKENNZRK sy-vline 
WA_HRD3DBBM_STR-AKENNZMF sy-vline 
WA_HRD3DBBM_STR-AZRBG_KV sy-vline 
WA_HRD3DBBM_STR-AZREN_KV sy-vline 
WA_HRD3DBBM_STR-AEZEG sy-vline 
WA_HRD3DBBM_STR-ALFD_KV sy-vline 
WA_HRD3DBBM_STR-ALFD_RV sy-vline 
WA_HRD3DBBM_STR-ALFDAV sy-vline 
WA_HRD3DBBM_STR-AEGRB sy-vline      INTO ld_text SEPARATED BY SPACE.

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