ABAP Select data from SAP table FMSU1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FMSU1 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 FMSU1. 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 FMSU1 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_FMSU1 TYPE STANDARD TABLE OF FMSU1,
      WA_FMSU1 TYPE FMSU1,
      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: <FMSU1> TYPE FMSU1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FMSU1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FMSU1
  INTO TABLE IT_FMSU1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMSU1
*  INTO TABLE @DATA(IT_FMSU12).
*--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_FMSU1 INDEX 1 INTO DATA(WA_FMSU12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FMSU1 ASSIGNING <FMSU1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMSU1>-MANDT = 1.
<FMSU1>-LEDNR = 1.
<FMSU1>-OBJNR = 1.
<FMSU1>-GJAHR = 1.
<FMSU1>-PERBL = 1.

ENDLOOP.

LOOP AT IT_FMSU1 INTO WA_FMSU1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMSU1-GEBER, sy-vline,
  WA_FMSU1-WRTTP, sy-vline,
  WA_FMSU1-VORGA, sy-vline,
  WA_FMSU1-POSIT, sy-vline,
  WA_FMSU1-TWAER, sy-vline,
  WA_FMSU1-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMSU1 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_FMSU1 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_FMSU1 INTO WA_FMSU1.


*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 NUMCV, internal->external for field LEDNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_FMSU1-LEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSU1-LEDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMSU1-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSU1-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMSU1-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSU1-WRTTP.
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_FMSU1_STR, 
MANDT TYPE STRING,
LEDNR TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
PERBL TYPE STRING,
GEBER TYPE STRING,
WRTTP TYPE STRING,
VORGA TYPE STRING,
POSIT TYPE STRING,
TWAER TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
OBJNRZ TYPE STRING,
BTR001 TYPE STRING,
BTR002 TYPE STRING,
BTR003 TYPE STRING,
BTR004 TYPE STRING,
BTR005 TYPE STRING,
BTR006 TYPE STRING,
BTR007 TYPE STRING,
BTR008 TYPE STRING,
BTR009 TYPE STRING,
BTR010 TYPE STRING,
BTR011 TYPE STRING,
BTR012 TYPE STRING,
BTR013 TYPE STRING,
BTR014 TYPE STRING,
BTR015 TYPE STRING,
BTR016 TYPE STRING,
BTRT01 TYPE STRING,
BTRT02 TYPE STRING,
BTRT03 TYPE STRING,
BTRT04 TYPE STRING,
BTRT05 TYPE STRING,
BTRT06 TYPE STRING,
BTRT07 TYPE STRING,
BTRT08 TYPE STRING,
BTRT09 TYPE STRING,
BTRT10 TYPE STRING,
BTRT11 TYPE STRING,
BTRT12 TYPE STRING,
BTRT13 TYPE STRING,
BTRT14 TYPE STRING,
BTRT15 TYPE STRING,
BTRT16 TYPE STRING,
BTRVT TYPE STRING,
BTRTVT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMSU1_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_FMSU1_STR-MANDT sy-vline 
WA_FMSU1_STR-LEDNR sy-vline 
WA_FMSU1_STR-OBJNR sy-vline 
WA_FMSU1_STR-GJAHR sy-vline 
WA_FMSU1_STR-PERBL sy-vline 
WA_FMSU1_STR-GEBER sy-vline 
WA_FMSU1_STR-WRTTP sy-vline 
WA_FMSU1_STR-VORGA sy-vline 
WA_FMSU1_STR-POSIT sy-vline 
WA_FMSU1_STR-TWAER sy-vline 
WA_FMSU1_STR-BUKRS sy-vline 
WA_FMSU1_STR-GSBER sy-vline 
WA_FMSU1_STR-OBJNRZ sy-vline 
WA_FMSU1_STR-BTR001 sy-vline 
WA_FMSU1_STR-BTR002 sy-vline 
WA_FMSU1_STR-BTR003 sy-vline 
WA_FMSU1_STR-BTR004 sy-vline 
WA_FMSU1_STR-BTR005 sy-vline 
WA_FMSU1_STR-BTR006 sy-vline 
WA_FMSU1_STR-BTR007 sy-vline 
WA_FMSU1_STR-BTR008 sy-vline 
WA_FMSU1_STR-BTR009 sy-vline 
WA_FMSU1_STR-BTR010 sy-vline 
WA_FMSU1_STR-BTR011 sy-vline 
WA_FMSU1_STR-BTR012 sy-vline 
WA_FMSU1_STR-BTR013 sy-vline 
WA_FMSU1_STR-BTR014 sy-vline 
WA_FMSU1_STR-BTR015 sy-vline 
WA_FMSU1_STR-BTR016 sy-vline 
WA_FMSU1_STR-BTRT01 sy-vline 
WA_FMSU1_STR-BTRT02 sy-vline 
WA_FMSU1_STR-BTRT03 sy-vline 
WA_FMSU1_STR-BTRT04 sy-vline 
WA_FMSU1_STR-BTRT05 sy-vline 
WA_FMSU1_STR-BTRT06 sy-vline 
WA_FMSU1_STR-BTRT07 sy-vline 
WA_FMSU1_STR-BTRT08 sy-vline 
WA_FMSU1_STR-BTRT09 sy-vline 
WA_FMSU1_STR-BTRT10 sy-vline 
WA_FMSU1_STR-BTRT11 sy-vline 
WA_FMSU1_STR-BTRT12 sy-vline 
WA_FMSU1_STR-BTRT13 sy-vline 
WA_FMSU1_STR-BTRT14 sy-vline 
WA_FMSU1_STR-BTRT15 sy-vline 
WA_FMSU1_STR-BTRT16 sy-vline 
WA_FMSU1_STR-BTRVT sy-vline 
WA_FMSU1_STR-BTRTVT sy-vline      INTO ld_text SEPARATED BY SPACE.

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