ABAP Select data from SAP table RM08R into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM08R 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 RM08R. 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 RM08R 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_RM08R TYPE STANDARD TABLE OF RM08R,
      WA_RM08R TYPE RM08R,
      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: <RM08R> TYPE RM08R.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM08R.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM08R
  INTO TABLE IT_RM08R.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM08R
*  INTO TABLE @DATA(IT_RM08R2).
*--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_RM08R INDEX 1 INTO DATA(WA_RM08R2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM08R ASSIGNING <RM08R>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM08R>-ANLN1 = 1.
<RM08R>-ANLN2 = 1.
<RM08R>-ANZPS = 1.
<RM08R>-AZWAE = 1.
<RM08R>-BELNR = 1.

ENDLOOP.

LOOP AT IT_RM08R INTO WA_RM08R.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM08R-BEZNK, sy-vline,
  WA_RM08R-BSCHL, sy-vline,
  WA_RM08R-BUDAT, sy-vline,
  WA_RM08R-BUKRS, sy-vline,
  WA_RM08R-BUKZ1, sy-vline,
  WA_RM08R-BUVOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM08R 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_RM08R 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_RM08R INTO WA_RM08R.


*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 ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FILIALE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-FILIALE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-FILIALE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-KONTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-KONTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LFBNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-LFBNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-LFBNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEIN1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-MEIN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-MEIN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08R-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08R-SAKNR.
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_RM08R_STR, 
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
ANZPS TYPE STRING,
AZWAE TYPE STRING,
BELNR TYPE STRING,
BEZNK TYPE STRING,
BSCHL TYPE STRING,
BUDAT TYPE STRING,
BUKRS TYPE STRING,
BUKZ1 TYPE STRING,
BUVOR TYPE STRING,
BUZEI TYPE STRING,
BWKEY TYPE STRING,
BWKRS TYPE STRING,
BWTAR TYPE STRING,
DMBTR TYPE STRING,
DTEXT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
FILIALE TYPE STRING,
GJAHR TYPE STRING,
GUTSC TYPE STRING,
HWSALDO TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KONTO TYPE STRING,
KZBWS TYPE STRING,
LFBNR TYPE STRING,
LFPOS TYPE STRING,
LIFNR TYPE STRING,
MATNR TYPE STRING,
MAXBUZEI TYPE STRING,
MAXPOS TYPE STRING,
MAXSEITE TYPE STRING,
MEIN1 TYPE STRING,
MENGE TYPE STRING,
MRAUS TYPE STRING,
MRINL TYPE STRING,
MWSKZ TYPE STRING,
MWSKZ1 TYPE STRING,
MWSKZ2 TYPE STRING,
MWSKZ3 TYPE STRING,
MWSKZ4 TYPE STRING,
MWSTS1 TYPE STRING,
MWSTS2 TYPE STRING,
MWSTS3 TYPE STRING,
MWSTS4 TYPE STRING,
NEWBK TYPE STRING,
POSNR TYPE STRING,
PSPNR TYPE STRING,
PSTYP TYPE STRING,
PWERT TYPE STRING,
RECH1 TYPE STRING,
RECHN TYPE STRING,
REGUL TYPE STRING,
SAKNR TYPE STRING,
SALDO TYPE STRING,
SEITE TYPE STRING,
SELKZ TYPE STRING,
SELKZ_HABE TYPE STRING,
SELKZ_KB TYPE STRING,
SELKZ_MK TYPE STRING,
SELKZ_SOLL TYPE STRING,
SOBKZ TYPE STRING,
SUMME TYPE STRING,
SUMME_HABN TYPE STRING,
SUMME_SOLL TYPE STRING,
TBTKZ TYPE STRING,
VPRSV TYPE STRING,
WAERS TYPE STRING,
WAER1 TYPE STRING,
WAER2 TYPE STRING,
WAER3 TYPE STRING,
WAER4 TYPE STRING,
WERT TYPE STRING,
WMWST1 TYPE STRING,
WMWST2 TYPE STRING,
WMWST3 TYPE STRING,
WMWST4 TYPE STRING,
XBLNR TYPE STRING,
XBNVA TYPE STRING,
XBNVE TYPE STRING,
ZEKKN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM08R_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_RM08R_STR-ANLN1 sy-vline 
WA_RM08R_STR-ANLN2 sy-vline 
WA_RM08R_STR-ANZPS sy-vline 
WA_RM08R_STR-AZWAE sy-vline 
WA_RM08R_STR-BELNR sy-vline 
WA_RM08R_STR-BEZNK sy-vline 
WA_RM08R_STR-BSCHL sy-vline 
WA_RM08R_STR-BUDAT sy-vline 
WA_RM08R_STR-BUKRS sy-vline 
WA_RM08R_STR-BUKZ1 sy-vline 
WA_RM08R_STR-BUVOR sy-vline 
WA_RM08R_STR-BUZEI sy-vline 
WA_RM08R_STR-BWKEY sy-vline 
WA_RM08R_STR-BWKRS sy-vline 
WA_RM08R_STR-BWTAR sy-vline 
WA_RM08R_STR-DMBTR sy-vline 
WA_RM08R_STR-DTEXT sy-vline 
WA_RM08R_STR-EBELN sy-vline 
WA_RM08R_STR-EBELP sy-vline 
WA_RM08R_STR-FILIALE sy-vline 
WA_RM08R_STR-GJAHR sy-vline 
WA_RM08R_STR-GUTSC sy-vline 
WA_RM08R_STR-HWSALDO sy-vline 
WA_RM08R_STR-KDAUF sy-vline 
WA_RM08R_STR-KDPOS sy-vline 
WA_RM08R_STR-KONTO sy-vline 
WA_RM08R_STR-KZBWS sy-vline 
WA_RM08R_STR-LFBNR sy-vline 
WA_RM08R_STR-LFPOS sy-vline 
WA_RM08R_STR-LIFNR sy-vline 
WA_RM08R_STR-MATNR sy-vline 
WA_RM08R_STR-MAXBUZEI sy-vline 
WA_RM08R_STR-MAXPOS sy-vline 
WA_RM08R_STR-MAXSEITE sy-vline 
WA_RM08R_STR-MEIN1 sy-vline 
WA_RM08R_STR-MENGE sy-vline 
WA_RM08R_STR-MRAUS sy-vline 
WA_RM08R_STR-MRINL sy-vline 
WA_RM08R_STR-MWSKZ sy-vline 
WA_RM08R_STR-MWSKZ1 sy-vline 
WA_RM08R_STR-MWSKZ2 sy-vline 
WA_RM08R_STR-MWSKZ3 sy-vline 
WA_RM08R_STR-MWSKZ4 sy-vline 
WA_RM08R_STR-MWSTS1 sy-vline 
WA_RM08R_STR-MWSTS2 sy-vline 
WA_RM08R_STR-MWSTS3 sy-vline 
WA_RM08R_STR-MWSTS4 sy-vline 
WA_RM08R_STR-NEWBK sy-vline 
WA_RM08R_STR-POSNR sy-vline 
WA_RM08R_STR-PSPNR sy-vline 
WA_RM08R_STR-PSTYP sy-vline 
WA_RM08R_STR-PWERT sy-vline 
WA_RM08R_STR-RECH1 sy-vline 
WA_RM08R_STR-RECHN sy-vline 
WA_RM08R_STR-REGUL sy-vline 
WA_RM08R_STR-SAKNR sy-vline 
WA_RM08R_STR-SALDO sy-vline 
WA_RM08R_STR-SEITE sy-vline 
WA_RM08R_STR-SELKZ sy-vline 
WA_RM08R_STR-SELKZ_HABE sy-vline 
WA_RM08R_STR-SELKZ_KB sy-vline 
WA_RM08R_STR-SELKZ_MK sy-vline 
WA_RM08R_STR-SELKZ_SOLL sy-vline 
WA_RM08R_STR-SOBKZ sy-vline 
WA_RM08R_STR-SUMME sy-vline 
WA_RM08R_STR-SUMME_HABN sy-vline 
WA_RM08R_STR-SUMME_SOLL sy-vline 
WA_RM08R_STR-TBTKZ sy-vline 
WA_RM08R_STR-VPRSV sy-vline 
WA_RM08R_STR-WAERS sy-vline 
WA_RM08R_STR-WAER1 sy-vline 
WA_RM08R_STR-WAER2 sy-vline 
WA_RM08R_STR-WAER3 sy-vline 
WA_RM08R_STR-WAER4 sy-vline 
WA_RM08R_STR-WERT sy-vline 
WA_RM08R_STR-WMWST1 sy-vline 
WA_RM08R_STR-WMWST2 sy-vline 
WA_RM08R_STR-WMWST3 sy-vline 
WA_RM08R_STR-WMWST4 sy-vline 
WA_RM08R_STR-XBLNR sy-vline 
WA_RM08R_STR-XBNVA sy-vline 
WA_RM08R_STR-XBNVE sy-vline 
WA_RM08R_STR-ZEKKN sy-vline      INTO ld_text SEPARATED BY SPACE.

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