ABAP Select data from SAP table FMPPS_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FMPPS_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 FMPPS_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 FMPPS_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_FMPPS_DATA TYPE STANDARD TABLE OF FMPPS_DATA,
      WA_FMPPS_DATA TYPE FMPPS_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: <FMPPS_DATA> TYPE FMPPS_DATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMPPS_DATA
*  INTO TABLE @DATA(IT_FMPPS_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_FMPPS_DATA INDEX 1 INTO DATA(WA_FMPPS_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMPPS_DATA>-MANDT = 1.
<FMPPS_DATA>-REFBN = 1.
<FMPPS_DATA>-REFBT = 1.
<FMPPS_DATA>-RFORG = 1.
<FMPPS_DATA>-RFPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMPPS_DATA-RFKNT, sy-vline,
  WA_FMPPS_DATA-RFETE, sy-vline,
  WA_FMPPS_DATA-RCOND, sy-vline,
  WA_FMPPS_DATA-RFTYP, sy-vline,
  WA_FMPPS_DATA-RFSYS, sy-vline,
  WA_FMPPS_DATA-VREFBT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMPPS_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_FMPPS_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_FMPPS_DATA INTO WA_FMPPS_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 ALPHA, internal->external for field REFBN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMPPS_DATA-REFBN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPPS_DATA-REFBN.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field VRFSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMPPS_DATA-VRFSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPPS_DATA-VRFSYS.
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_FMPPS_DATA_STR, 
MANDT TYPE STRING,
REFBN TYPE STRING,
REFBT TYPE STRING,
RFORG TYPE STRING,
RFPOS TYPE STRING,
RFKNT TYPE STRING,
RFETE TYPE STRING,
RCOND TYPE STRING,
RFTYP TYPE STRING,
RFSYS TYPE STRING,
VREFBT TYPE STRING,
VREFBN TYPE STRING,
VRFORG TYPE STRING,
VRFPOS TYPE STRING,
VRFKNT TYPE STRING,
VRFTYP TYPE STRING,
VRFSYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMPPS_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_FMPPS_DATA_STR-MANDT sy-vline 
WA_FMPPS_DATA_STR-REFBN sy-vline 
WA_FMPPS_DATA_STR-REFBT sy-vline 
WA_FMPPS_DATA_STR-RFORG sy-vline 
WA_FMPPS_DATA_STR-RFPOS sy-vline 
WA_FMPPS_DATA_STR-RFKNT sy-vline 
WA_FMPPS_DATA_STR-RFETE sy-vline 
WA_FMPPS_DATA_STR-RCOND sy-vline 
WA_FMPPS_DATA_STR-RFTYP sy-vline 
WA_FMPPS_DATA_STR-RFSYS sy-vline 
WA_FMPPS_DATA_STR-VREFBT sy-vline 
WA_FMPPS_DATA_STR-VREFBN sy-vline 
WA_FMPPS_DATA_STR-VRFORG sy-vline 
WA_FMPPS_DATA_STR-VRFPOS sy-vline 
WA_FMPPS_DATA_STR-VRFKNT sy-vline 
WA_FMPPS_DATA_STR-VRFTYP sy-vline 
WA_FMPPS_DATA_STR-VRFSYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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