ABAP Select data from SAP table FOT_S_EXTEND_ADDITIONAL_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FOT_S_EXTEND_ADDITIONAL_FIELDS
*  INTO TABLE @DATA(IT_FOT_S_EXTEND_ADDITIONAL_FIELDS2).
*--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_FOT_S_EXTEND_ADDITIONAL_FIELDS INDEX 1 INTO DATA(WA_FOT_S_EXTEND_ADDITIONAL_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FOT_S_EXTEND_ADDITIONAL_FIELDS>-TAXPS = 1.
<FOT_S_EXTEND_ADDITIONAL_FIELDS>-BUZEI = 1.
<FOT_S_EXTEND_ADDITIONAL_FIELDS>-DMBTR = 1.
<FOT_S_EXTEND_ADDITIONAL_FIELDS>-HKONT = 1.
<FOT_S_EXTEND_ADDITIONAL_FIELDS>-KOSTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-LIFNR, sy-vline,
  WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-KUNNR, sy-vline,
  WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-SOLDTO, sy-vline,
  WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-SHIPTO, sy-vline,
  WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-BILLED_AMOUNT, sy-vline,
  WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-SERVICE_DOC_TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FOT_S_EXTEND_ADDITIONAL_FIELDS 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_FOT_S_EXTEND_ADDITIONAL_FIELDS 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_FOT_S_EXTEND_ADDITIONAL_FIELDS INTO WA_FOT_S_EXTEND_ADDITIONAL_FIELDS.


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

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PROJK
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-PROJK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-PROJK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SALES_DOC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-SALES_DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOT_S_EXTEND_ADDITIONAL_FIELDS-SALES_DOC_ID.
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_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR, 
TAXPS TYPE STRING,
BUZEI TYPE STRING,
DMBTR TYPE STRING,
HKONT TYPE STRING,
KOSTL TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
SOLDTO TYPE STRING,
SHIPTO TYPE STRING,
BILLED_AMOUNT TYPE STRING,
SERVICE_DOC_TYPE TYPE STRING,
SERVICE_DOC_ID TYPE STRING,
SERVICE_DOC_ITEM_ID TYPE STRING,
PURCHASE_DOC_ID TYPE STRING,
PURCHASE_DOC_ITEM_ID TYPE STRING,
PROJK TYPE STRING,
SALES_DOC_CATEGORY TYPE STRING,
SALES_DOC_ID TYPE STRING,
SALES_DOC_ITEM_ID TYPE STRING,
EKORG TYPE STRING,
KNTTP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_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_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-TAXPS sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-BUZEI sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-DMBTR sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-HKONT sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-KOSTL sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-LIFNR sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-KUNNR sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-SOLDTO sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-SHIPTO sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-BILLED_AMOUNT sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-SERVICE_DOC_TYPE sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-SERVICE_DOC_ID sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-SERVICE_DOC_ITEM_ID sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-PURCHASE_DOC_ID sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-PURCHASE_DOC_ITEM_ID sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-PROJK sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-SALES_DOC_CATEGORY sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-SALES_DOC_ID sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-SALES_DOC_ITEM_ID sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-EKORG sy-vline 
WA_FOT_S_EXTEND_ADDITIONAL_FIELDS_STR-KNTTP sy-vline      INTO ld_text SEPARATED BY SPACE.

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