ABAP Select data from SAP table ACCRBD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACCRBD
*  INTO TABLE @DATA(IT_ACCRBD2).
*--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_ACCRBD INDEX 1 INTO DATA(WA_ACCRBD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACCRBD>-MANDT = 1.
<ACCRBD>-BUKRS = 1.
<ACCRBD>-BELNR = 1.
<ACCRBD>-ERDAT = 1.
<ACCRBD>-ERNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACCRBD-AEDAT, sy-vline,
  WA_ACCRBD-AENAM, sy-vline,
  WA_ACCRBD-DOCTYP, sy-vline,
  WA_ACCRBD-LVORM, sy-vline,
  WA_ACCRBD-BLDAT, sy-vline,
  WA_ACCRBD-WRBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACCRBD 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_ACCRBD 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_ACCRBD INTO WA_ACCRBD.


*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.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACCRBD-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACCRBD-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ACCRBD-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACCRBD-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACCRBD-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACCRBD-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCHKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACCRBD-ACCHKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACCRBD-ACCHKONT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ACCRBD_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
DOCTYP TYPE STRING,
LVORM TYPE STRING,
BLDAT TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
ATEXT TYPE STRING,
ATYPE TYPE STRING,
XBELNR TYPE STRING,
STGMETH TYPE STRING,
HKONT TYPE STRING,
ACCHKONT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACCRBD_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_ACCRBD_STR-MANDT sy-vline 
WA_ACCRBD_STR-BUKRS sy-vline 
WA_ACCRBD_STR-BELNR sy-vline 
WA_ACCRBD_STR-ERDAT sy-vline 
WA_ACCRBD_STR-ERNAM sy-vline 
WA_ACCRBD_STR-AEDAT sy-vline 
WA_ACCRBD_STR-AENAM sy-vline 
WA_ACCRBD_STR-DOCTYP sy-vline 
WA_ACCRBD_STR-LVORM sy-vline 
WA_ACCRBD_STR-BLDAT sy-vline 
WA_ACCRBD_STR-WRBTR sy-vline 
WA_ACCRBD_STR-WAERS sy-vline 
WA_ACCRBD_STR-DATAB sy-vline 
WA_ACCRBD_STR-DATBI sy-vline 
WA_ACCRBD_STR-ATEXT sy-vline 
WA_ACCRBD_STR-ATYPE sy-vline 
WA_ACCRBD_STR-XBELNR sy-vline 
WA_ACCRBD_STR-STGMETH sy-vline 
WA_ACCRBD_STR-HKONT sy-vline 
WA_ACCRBD_STR-ACCHKONT sy-vline      INTO ld_text SEPARATED BY SPACE.

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