ABAP Select data from SAP table RM63S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM63S 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 RM63S. 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 RM63S 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_RM63S TYPE STANDARD TABLE OF RM63S,
      WA_RM63S TYPE RM63S,
      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: <RM63S> TYPE RM63S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM63S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM63S
  INTO TABLE IT_RM63S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM63S
*  INTO TABLE @DATA(IT_RM63S2).
*--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_RM63S INDEX 1 INTO DATA(WA_RM63S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM63S ASSIGNING <RM63S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM63S>-LFDNR = 1.
<RM63S>-MANDT = 1.
<RM63S>-OBJNR = 1.
<RM63S>-COUNTER = 1.
<RM63S>-ERDAT = 1.

ENDLOOP.

LOOP AT IT_RM63S INTO WA_RM63S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM63S-ERNAM, sy-vline,
  WA_RM63S-AEDAT, sy-vline,
  WA_RM63S-AENAM, sy-vline,
  WA_RM63S-PMSOG, sy-vline,
  WA_RM63S-K_AF, sy-vline,
  WA_RM63S-K_AA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM63S 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_RM63S 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_RM63S INTO WA_RM63S.


*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 EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63S-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63S-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_RM63S-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63S-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63S-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63S-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RM63S-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63S-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field IHASP
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RM63S-IHASP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63S-IHASP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63S-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63S-PLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63S-PLNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63S-PLNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AAUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM63S-AAUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM63S-AAUFNR.
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_RM63S_STR, 
LFDNR TYPE STRING,
MANDT TYPE STRING,
OBJNR TYPE STRING,
COUNTER TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
PMSOG TYPE STRING,
K_AF TYPE STRING,
K_AA TYPE STRING,
K_DRUCK TYPE STRING,
K_PRO TYPE STRING,
KZLTX TYPE STRING,
EQUNR TYPE STRING,
TPLNR TYPE STRING,
AUFNR TYPE STRING,
VORNR TYPE STRING,
K_OBJEKT TYPE STRING,
IHASP TYPE STRING,
K_NODEL TYPE STRING,
K_SKIP TYPE STRING,
K_ORIGIN TYPE STRING,
CLASS TYPE STRING,
LVORM TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
GNTYP TYPE STRING,
GNTXT TYPE STRING,
K_SPERR TYPE STRING,
FCODE TYPE STRING,
INDTX TYPE STRING,
BUTTON TYPE STRING,
KTX01 TYPE STRING,
GENNAME TYPE STRING,
GENDATUM TYPE STRING,
GENTIME TYPE STRING,
GENITIME TYPE STRING,
GENIDATE TYPE STRING,
GENINAME TYPE STRING,
GENVDATE TYPE STRING,
GENBDATE TYPE STRING,
GENVTIME TYPE STRING,
GENBTIME TYPE STRING,
GENPAUS TYPE STRING,
K_GENEHM TYPE STRING,
GENVNAME TYPE STRING,
KTEXT TYPE STRING,
AAUFNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM63S_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_RM63S_STR-LFDNR sy-vline 
WA_RM63S_STR-MANDT sy-vline 
WA_RM63S_STR-OBJNR sy-vline 
WA_RM63S_STR-COUNTER sy-vline 
WA_RM63S_STR-ERDAT sy-vline 
WA_RM63S_STR-ERNAM sy-vline 
WA_RM63S_STR-AEDAT sy-vline 
WA_RM63S_STR-AENAM sy-vline 
WA_RM63S_STR-PMSOG sy-vline 
WA_RM63S_STR-K_AF sy-vline 
WA_RM63S_STR-K_AA sy-vline 
WA_RM63S_STR-K_DRUCK sy-vline 
WA_RM63S_STR-K_PRO sy-vline 
WA_RM63S_STR-KZLTX sy-vline 
WA_RM63S_STR-EQUNR sy-vline 
WA_RM63S_STR-TPLNR sy-vline 
WA_RM63S_STR-AUFNR sy-vline 
WA_RM63S_STR-VORNR sy-vline 
WA_RM63S_STR-K_OBJEKT sy-vline 
WA_RM63S_STR-IHASP sy-vline 
WA_RM63S_STR-K_NODEL sy-vline 
WA_RM63S_STR-K_SKIP sy-vline 
WA_RM63S_STR-K_ORIGIN sy-vline 
WA_RM63S_STR-CLASS sy-vline 
WA_RM63S_STR-LVORM sy-vline 
WA_RM63S_STR-PLNTY sy-vline 
WA_RM63S_STR-PLNNR sy-vline 
WA_RM63S_STR-PLNAL sy-vline 
WA_RM63S_STR-GNTYP sy-vline 
WA_RM63S_STR-GNTXT sy-vline 
WA_RM63S_STR-K_SPERR sy-vline 
WA_RM63S_STR-FCODE sy-vline 
WA_RM63S_STR-INDTX sy-vline 
WA_RM63S_STR-BUTTON sy-vline 
WA_RM63S_STR-KTX01 sy-vline 
WA_RM63S_STR-GENNAME sy-vline 
WA_RM63S_STR-GENDATUM sy-vline 
WA_RM63S_STR-GENTIME sy-vline 
WA_RM63S_STR-GENITIME sy-vline 
WA_RM63S_STR-GENIDATE sy-vline 
WA_RM63S_STR-GENINAME sy-vline 
WA_RM63S_STR-GENVDATE sy-vline 
WA_RM63S_STR-GENBDATE sy-vline 
WA_RM63S_STR-GENVTIME sy-vline 
WA_RM63S_STR-GENBTIME sy-vline 
WA_RM63S_STR-GENPAUS sy-vline 
WA_RM63S_STR-K_GENEHM sy-vline 
WA_RM63S_STR-GENVNAME sy-vline 
WA_RM63S_STR-KTEXT sy-vline 
WA_RM63S_STR-AAUFNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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