ABAP Select data from SAP table BFOD_AB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BFOD_AB
*  INTO TABLE @DATA(IT_BFOD_AB2).
*--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_BFOD_AB INDEX 1 INTO DATA(WA_BFOD_AB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BFOD_AB>-MANDT = 1.
<BFOD_AB>-BUKRS = 1.
<BFOD_AB>-BELNR = 1.
<BFOD_AB>-GJAHR = 1.
<BFOD_AB>-BUZEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BFOD_AB-OPZEI, sy-vline,
  WA_BFOD_AB-TLZEI, sy-vline,
  WA_BFOD_AB-AUZEI, sy-vline,
  WA_BFOD_AB-HWAEN, sy-vline,
  WA_BFOD_AB-LAIDOP, sy-vline,
  WA_BFOD_AB-LAIDAP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BFOD_AB 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_BFOD_AB 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_BFOD_AB INTO WA_BFOD_AB.


*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_BFOD_AB-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BFOD_AB-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_BFOD_AB-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BFOD_AB-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC132, internal->external for field BDIFFX
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_BFOD_AB-BDIFFX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BFOD_AB-BDIFFX.
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_BFOD_AB_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
OPZEI TYPE STRING,
TLZEI TYPE STRING,
AUZEI TYPE STRING,
HWAEN TYPE STRING,
LAIDOP TYPE STRING,
LAIDAP TYPE STRING,
WAERS TYPE STRING,
BDKONT TYPE STRING,
BDIFFX TYPE STRING,
_DATAAGING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BFOD_AB_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_BFOD_AB_STR-MANDT sy-vline 
WA_BFOD_AB_STR-BUKRS sy-vline 
WA_BFOD_AB_STR-BELNR sy-vline 
WA_BFOD_AB_STR-GJAHR sy-vline 
WA_BFOD_AB_STR-BUZEI sy-vline 
WA_BFOD_AB_STR-OPZEI sy-vline 
WA_BFOD_AB_STR-TLZEI sy-vline 
WA_BFOD_AB_STR-AUZEI sy-vline 
WA_BFOD_AB_STR-HWAEN sy-vline 
WA_BFOD_AB_STR-LAIDOP sy-vline 
WA_BFOD_AB_STR-LAIDAP sy-vline 
WA_BFOD_AB_STR-WAERS sy-vline 
WA_BFOD_AB_STR-BDKONT sy-vline 
WA_BFOD_AB_STR-BDIFFX sy-vline 
WA_BFOD_AB_STR-_DATAAGING sy-vline      INTO ld_text SEPARATED BY SPACE.

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