ABAP Select data from SAP table FMPP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMPP
*  INTO TABLE @DATA(IT_FMPP2).
*--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_FMPP INDEX 1 INTO DATA(WA_FMPP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMPP>-MANDT = 1.
<FMPP>-PPLAN = 1.
<FMPP>-VARNT = 1.
<FMPP>-FIPEX = 1.
<FMPP>-KATEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMPP-FIVOR, sy-vline,
  WA_FMPP-POTYP, sy-vline,
  WA_FMPP-KRTYP, sy-vline,
  WA_FMPP-FPART, sy-vline,
  WA_FMPP-FIPOS, sy-vline,
  WA_FMPP-FIPUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMPP 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_FMPP 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_FMPP INTO WA_FMPP.


*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 FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMPP-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPP-FIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_FMPP-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPP-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPUP
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMPP-FIPUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMPP-FIPUP.
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_FMPP_STR, 
MANDT TYPE STRING,
PPLAN TYPE STRING,
VARNT TYPE STRING,
FIPEX TYPE STRING,
KATEG TYPE STRING,
FIVOR TYPE STRING,
POTYP TYPE STRING,
KRTYP TYPE STRING,
FPART TYPE STRING,
FIPOS TYPE STRING,
FIPUP TYPE STRING,
HSART TYPE STRING,
GKFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMPP_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_FMPP_STR-MANDT sy-vline 
WA_FMPP_STR-PPLAN sy-vline 
WA_FMPP_STR-VARNT sy-vline 
WA_FMPP_STR-FIPEX sy-vline 
WA_FMPP_STR-KATEG sy-vline 
WA_FMPP_STR-FIVOR sy-vline 
WA_FMPP_STR-POTYP sy-vline 
WA_FMPP_STR-KRTYP sy-vline 
WA_FMPP_STR-FPART sy-vline 
WA_FMPP_STR-FIPOS sy-vline 
WA_FMPP_STR-FIPUP sy-vline 
WA_FMPP_STR-HSART sy-vline 
WA_FMPP_STR-GKFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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