ABAP Select data from SAP table FCOS_AMOUNT_PER_VAR_CATEGORY_N into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCOS_AMOUNT_PER_VAR_CATEGORY_N
*  INTO TABLE @DATA(IT_FCOS_AMOUNT_PER_VAR_CATEGORY_N2).
*--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_FCOS_AMOUNT_PER_VAR_CATEGORY_N INDEX 1 INTO DATA(WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCOS_AMOUNT_PER_VAR_CATEGORY_N>-MANDT = 1.
<FCOS_AMOUNT_PER_VAR_CATEGORY_N>-AWTYP = 1.
<FCOS_AMOUNT_PER_VAR_CATEGORY_N>-AWREF = 1.
<FCOS_AMOUNT_PER_VAR_CATEGORY_N>-AWORG = 1.
<FCOS_AMOUNT_PER_VAR_CATEGORY_N>-POSNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N-ABKAT, sy-vline,
  WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N-KSTAR, sy-vline,
  WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N-CURRENCY, sy-vline,
  WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N-CURTP, sy-vline,
  WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N-WGBTR, sy-vline,
  WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N-WFBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N 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_FCOS_AMOUNT_PER_VAR_CATEGORY_N 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_FCOS_AMOUNT_PER_VAR_CATEGORY_N INTO WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N.


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

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

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

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

*Conversion exit AU132, internal->external for field WFBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N-WFBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N-WFBTR.
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_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR, 
MANDT TYPE STRING,
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
POSNR TYPE STRING,
ABKAT TYPE STRING,
KSTAR TYPE STRING,
CURRENCY TYPE STRING,
CURTP TYPE STRING,
WGBTR TYPE STRING,
WFBTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_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_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-MANDT sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-AWTYP sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-AWREF sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-AWORG sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-POSNR sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-ABKAT sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-KSTAR sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-CURRENCY sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-CURTP sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-WGBTR sy-vline 
WA_FCOS_AMOUNT_PER_VAR_CATEGORY_N_STR-WFBTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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