ABAP Select data from SAP table F100FILE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP F100FILE 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 F100FILE. 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 F100FILE 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_F100FILE TYPE STANDARD TABLE OF F100FILE,
      WA_F100FILE TYPE F100FILE,
      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: <F100FILE> TYPE F100FILE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_F100FILE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM F100FILE
  INTO TABLE IT_F100FILE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM F100FILE
*  INTO TABLE @DATA(IT_F100FILE2).
*--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_F100FILE INDEX 1 INTO DATA(WA_F100FILE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_F100FILE ASSIGNING <F100FILE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<F100FILE>-BUKRS = 1.
<F100FILE>-GJAHR = 1.
<F100FILE>-BELNR = 1.
<F100FILE>-BUZEI = 1.
<F100FILE>-HWTYP = 1.

ENDLOOP.

LOOP AT IT_F100FILE INTO WA_F100FILE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_F100FILE-WAERS, sy-vline,
  WA_F100FILE-OLDBDIFF, sy-vline,
  WA_F100FILE-NEWBDIFF, sy-vline,
  WA_F100FILE-PLTYPE, sy-vline,
  WA_F100FILE-BWBER, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_F100FILE 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_F100FILE 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_F100FILE INTO WA_F100FILE.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_F100FILE-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_F100FILE-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_F100FILE-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_F100FILE-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field OLDBDIFF
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_F100FILE-OLDBDIFF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_F100FILE-OLDBDIFF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NEWBDIFF
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_F100FILE-NEWBDIFF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_F100FILE-NEWBDIFF.
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_F100FILE_STR, 
BUKRS TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
HWTYP TYPE STRING,
WAERS TYPE STRING,
OLDBDIFF TYPE STRING,
NEWBDIFF TYPE STRING,
PLTYPE TYPE STRING,
BWBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_F100FILE_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_F100FILE_STR-BUKRS sy-vline 
WA_F100FILE_STR-GJAHR sy-vline 
WA_F100FILE_STR-BELNR sy-vline 
WA_F100FILE_STR-BUZEI sy-vline 
WA_F100FILE_STR-HWTYP sy-vline 
WA_F100FILE_STR-WAERS sy-vline 
WA_F100FILE_STR-OLDBDIFF sy-vline 
WA_F100FILE_STR-NEWBDIFF sy-vline 
WA_F100FILE_STR-PLTYPE sy-vline 
WA_F100FILE_STR-BWBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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