ABAP Select data from SAP table MSFD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSFD
*  INTO TABLE @DATA(IT_MSFD2).
*--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_MSFD INDEX 1 INTO DATA(WA_MSFD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSFD>-MANDT = 1.
<MSFD>-MATNR = 1.
<MSFD>-WERKS = 1.
<MSFD>-CHARG = 1.
<MSFD>-SOBKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSFD-LIFNR, sy-vline,
  WA_MSFD-VBELN, sy-vline,
  WA_MSFD-POSNR, sy-vline,
  WA_MSFD-LFGJA, sy-vline,
  WA_MSFD-LFMON, sy-vline,
  WA_MSFD-FDSPR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSFD 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_MSFD 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_MSFD INTO WA_MSFD.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MSFD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSFD-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_MSFD-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSFD-LFGJA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FDJIN
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_MSFD-FDJIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSFD-FDJIN.
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_MSFD_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
LIFNR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
FDSPR TYPE STRING,
FDLAB TYPE STRING,
FDINS TYPE STRING,
FDVLA TYPE STRING,
FDVIN TYPE STRING,
FDILL TYPE STRING,
FDILQ TYPE STRING,
FDVLL TYPE STRING,
FDVLQ TYPE STRING,
FDFLL TYPE STRING,
FDFLQ TYPE STRING,
FDDLL TYPE STRING,
FDEIN TYPE STRING,
FDVEI TYPE STRING,
ERSDA TYPE STRING,
FDJIN TYPE STRING,
FDRUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSFD_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_MSFD_STR-MANDT sy-vline 
WA_MSFD_STR-MATNR sy-vline 
WA_MSFD_STR-WERKS sy-vline 
WA_MSFD_STR-CHARG sy-vline 
WA_MSFD_STR-SOBKZ sy-vline 
WA_MSFD_STR-LIFNR sy-vline 
WA_MSFD_STR-VBELN sy-vline 
WA_MSFD_STR-POSNR sy-vline 
WA_MSFD_STR-LFGJA sy-vline 
WA_MSFD_STR-LFMON sy-vline 
WA_MSFD_STR-FDSPR sy-vline 
WA_MSFD_STR-FDLAB sy-vline 
WA_MSFD_STR-FDINS sy-vline 
WA_MSFD_STR-FDVLA sy-vline 
WA_MSFD_STR-FDVIN sy-vline 
WA_MSFD_STR-FDILL sy-vline 
WA_MSFD_STR-FDILQ sy-vline 
WA_MSFD_STR-FDVLL sy-vline 
WA_MSFD_STR-FDVLQ sy-vline 
WA_MSFD_STR-FDFLL sy-vline 
WA_MSFD_STR-FDFLQ sy-vline 
WA_MSFD_STR-FDDLL sy-vline 
WA_MSFD_STR-FDEIN sy-vline 
WA_MSFD_STR-FDVEI sy-vline 
WA_MSFD_STR-ERSDA sy-vline 
WA_MSFD_STR-FDJIN sy-vline 
WA_MSFD_STR-FDRUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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