ABAP Select data from SAP table FCO_MS_VAR_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCO_MS_VAR_DATA
*  INTO TABLE @DATA(IT_FCO_MS_VAR_DATA2).
*--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_FCO_MS_VAR_DATA INDEX 1 INTO DATA(WA_FCO_MS_VAR_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCO_MS_VAR_DATA>-MANDT = 1.
<FCO_MS_VAR_DATA>-UNAME = 1.
<FCO_MS_VAR_DATA>-MONAPPL = 1.
<FCO_MS_VAR_DATA>-RULEID = 1.
<FCO_MS_VAR_DATA>-OBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCO_MS_VAR_DATA-VAL1, sy-vline,
  WA_FCO_MS_VAR_DATA-VAL2, sy-vline,
  WA_FCO_MS_VAR_DATA-WAERS, sy-vline,
  WA_FCO_MS_VAR_DATA-GJAHR, sy-vline,
  WA_FCO_MS_VAR_DATA-STATUS, sy-vline,
  WA_FCO_MS_VAR_DATA-GUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCO_MS_VAR_DATA 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_FCO_MS_VAR_DATA 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_FCO_MS_VAR_DATA INTO WA_FCO_MS_VAR_DATA.


*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 AC152, internal->external for field VAL1
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FCO_MS_VAR_DATA-VAL1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCO_MS_VAR_DATA-VAL1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field VAL2
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FCO_MS_VAR_DATA-VAL2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCO_MS_VAR_DATA-VAL2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FCO_MS_VAR_DATA-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FCO_MS_VAR_DATA-GJAHR.
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_FCO_MS_VAR_DATA_STR, 
MANDT TYPE STRING,
UNAME TYPE STRING,
MONAPPL TYPE STRING,
RULEID TYPE STRING,
OBJECT TYPE STRING,
VAL1 TYPE STRING,
VAL2 TYPE STRING,
WAERS TYPE STRING,
GJAHR TYPE STRING,
STATUS TYPE STRING,
GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCO_MS_VAR_DATA_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_FCO_MS_VAR_DATA_STR-MANDT sy-vline 
WA_FCO_MS_VAR_DATA_STR-UNAME sy-vline 
WA_FCO_MS_VAR_DATA_STR-MONAPPL sy-vline 
WA_FCO_MS_VAR_DATA_STR-RULEID sy-vline 
WA_FCO_MS_VAR_DATA_STR-OBJECT sy-vline 
WA_FCO_MS_VAR_DATA_STR-VAL1 sy-vline 
WA_FCO_MS_VAR_DATA_STR-VAL2 sy-vline 
WA_FCO_MS_VAR_DATA_STR-WAERS sy-vline 
WA_FCO_MS_VAR_DATA_STR-GJAHR sy-vline 
WA_FCO_MS_VAR_DATA_STR-STATUS sy-vline 
WA_FCO_MS_VAR_DATA_STR-GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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