ABAP Select data from SAP table TFBWD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFBWD
*  INTO TABLE @DATA(IT_TFBWD2).
*--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_TFBWD INDEX 1 INTO DATA(WA_TFBWD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFBWD>-MANDT = 1.
<TFBWD>-UNAME = 1.
<TFBWD>-BUKRS = 1.
<TFBWD>-FWAER = 1.
<TFBWD>-VONSK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFBWD-BISSK, sy-vline,
  WA_TFBWD-VONFKD, sy-vline,
  WA_TFBWD-BISFKD, sy-vline,
  WA_TFBWD-XVIAF, sy-vline,
  WA_TFBWD-HBIDI, sy-vline,
  WA_TFBWD-UNIXI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFBWD 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_TFBWD 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_TFBWD INTO WA_TFBWD.


*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 VONSK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TFBWD-VONSK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TFBWD-VONSK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BISSK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TFBWD-BISSK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TFBWD-BISSK.
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_TFBWD_STR, 
MANDT TYPE STRING,
UNAME TYPE STRING,
BUKRS TYPE STRING,
FWAER TYPE STRING,
VONSK TYPE STRING,
BISSK TYPE STRING,
VONFKD TYPE STRING,
BISFKD TYPE STRING,
XVIAF TYPE STRING,
HBIDI TYPE STRING,
UNIXI TYPE STRING,
TABST TYPE STRING,
GROUPID TYPE STRING,
BLART TYPE STRING,
BLDATD TYPE STRING,
BUDATD TYPE STRING,
VALUTD TYPE STRING,
KSAMB TYPE STRING,
DIRBU TYPE STRING,
XGENF TYPE STRING,
FITYO TYPE STRING,
LAUFI TYPE STRING,
SAPSC TYPE STRING,
XAUTO TYPE STRING,
FORMT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFBWD_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_TFBWD_STR-MANDT sy-vline 
WA_TFBWD_STR-UNAME sy-vline 
WA_TFBWD_STR-BUKRS sy-vline 
WA_TFBWD_STR-FWAER sy-vline 
WA_TFBWD_STR-VONSK sy-vline 
WA_TFBWD_STR-BISSK sy-vline 
WA_TFBWD_STR-VONFKD sy-vline 
WA_TFBWD_STR-BISFKD sy-vline 
WA_TFBWD_STR-XVIAF sy-vline 
WA_TFBWD_STR-HBIDI sy-vline 
WA_TFBWD_STR-UNIXI sy-vline 
WA_TFBWD_STR-TABST sy-vline 
WA_TFBWD_STR-GROUPID sy-vline 
WA_TFBWD_STR-BLART sy-vline 
WA_TFBWD_STR-BLDATD sy-vline 
WA_TFBWD_STR-BUDATD sy-vline 
WA_TFBWD_STR-VALUTD sy-vline 
WA_TFBWD_STR-KSAMB sy-vline 
WA_TFBWD_STR-DIRBU sy-vline 
WA_TFBWD_STR-XGENF sy-vline 
WA_TFBWD_STR-FITYO sy-vline 
WA_TFBWD_STR-LAUFI sy-vline 
WA_TFBWD_STR-SAPSC sy-vline 
WA_TFBWD_STR-XAUTO sy-vline 
WA_TFBWD_STR-FORMT sy-vline      INTO ld_text SEPARATED BY SPACE.

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