ABAP Select data from SAP table RA01M into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RA01M 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 RA01M. 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 RA01M 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_RA01M TYPE STANDARD TABLE OF RA01M,
      WA_RA01M TYPE RA01M,
      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: <RA01M> TYPE RA01M.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RA01M.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RA01M
  INTO TABLE IT_RA01M.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RA01M
*  INTO TABLE @DATA(IT_RA01M2).
*--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_RA01M INDEX 1 INTO DATA(WA_RA01M2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RA01M ASSIGNING <RA01M>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RA01M>-MANDT = 1.
<RA01M>-ANLKL = 1.
<RA01M>-KTOPL = 1.
<RA01M>-AFABE = 1.
<RA01M>-INDTXT = 1.

ENDLOOP.

LOOP AT IT_RA01M INTO WA_RA01M.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RA01M-JA, sy-vline,
  WA_RA01M-NEIN, sy-vline,
  WA_RA01M-KZ, sy-vline,
  WA_RA01M-ANZ, sy-vline,
  WA_RA01M-AFAPL, sy-vline,
  WA_RA01M-XLEAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RA01M 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_RA01M 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_RA01M INTO WA_RA01M.


*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 ANLKL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RA01M-ANLKL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RA01M-ANLKL.
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_RA01M_STR, 
MANDT TYPE STRING,
ANLKL TYPE STRING,
KTOPL TYPE STRING,
AFABE TYPE STRING,
INDTXT TYPE STRING,
JA TYPE STRING,
NEIN TYPE STRING,
KZ TYPE STRING,
ANZ TYPE STRING,
AFAPL TYPE STRING,
XLEAS TYPE STRING,
XFINA TYPE STRING,
FEG_A TYPE STRING,
FEG_B TYPE STRING,
ORD_1 TYPE STRING,
ORD_2 TYPE STRING,
ORD_3 TYPE STRING,
ORD_4 TYPE STRING,
ORDTX_1 TYPE STRING,
ORDTX_2 TYPE STRING,
ORDTX_3 TYPE STRING,
ORDTX_4 TYPE STRING,
TXT20_1 TYPE STRING,
ZEILE TYPE STRING,
LSEIT TYPE STRING,
MSEIT TYPE STRING,
XGWGS TYPE STRING,
XGWGE TYPE STRING,
XBWAGR TYPE STRING,
AIMMO TYPE STRING,
XAKPLA TYPE STRING,
XSUMM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RA01M_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_RA01M_STR-MANDT sy-vline 
WA_RA01M_STR-ANLKL sy-vline 
WA_RA01M_STR-KTOPL sy-vline 
WA_RA01M_STR-AFABE sy-vline 
WA_RA01M_STR-INDTXT sy-vline 
WA_RA01M_STR-JA sy-vline 
WA_RA01M_STR-NEIN sy-vline 
WA_RA01M_STR-KZ sy-vline 
WA_RA01M_STR-ANZ sy-vline 
WA_RA01M_STR-AFAPL sy-vline 
WA_RA01M_STR-XLEAS sy-vline 
WA_RA01M_STR-XFINA sy-vline 
WA_RA01M_STR-FEG_A sy-vline 
WA_RA01M_STR-FEG_B sy-vline 
WA_RA01M_STR-ORD_1 sy-vline 
WA_RA01M_STR-ORD_2 sy-vline 
WA_RA01M_STR-ORD_3 sy-vline 
WA_RA01M_STR-ORD_4 sy-vline 
WA_RA01M_STR-ORDTX_1 sy-vline 
WA_RA01M_STR-ORDTX_2 sy-vline 
WA_RA01M_STR-ORDTX_3 sy-vline 
WA_RA01M_STR-ORDTX_4 sy-vline 
WA_RA01M_STR-TXT20_1 sy-vline 
WA_RA01M_STR-ZEILE sy-vline 
WA_RA01M_STR-LSEIT sy-vline 
WA_RA01M_STR-MSEIT sy-vline 
WA_RA01M_STR-XGWGS sy-vline 
WA_RA01M_STR-XGWGE sy-vline 
WA_RA01M_STR-XBWAGR sy-vline 
WA_RA01M_STR-AIMMO sy-vline 
WA_RA01M_STR-XAKPLA sy-vline 
WA_RA01M_STR-XSUMM sy-vline      INTO ld_text SEPARATED BY SPACE.

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