ABAP Select data from SAP table RM08V into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RM08V 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 RM08V. 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 RM08V 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_RM08V TYPE STANDARD TABLE OF RM08V,
      WA_RM08V TYPE RM08V,
      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: <RM08V> TYPE RM08V.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RM08V.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RM08V
  INTO TABLE IT_RM08V.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RM08V
*  INTO TABLE @DATA(IT_RM08V2).
*--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_RM08V INDEX 1 INTO DATA(WA_RM08V2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RM08V ASSIGNING <RM08V>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RM08V>-BELNR = 1.
<RM08V>-GJAHR = 1.
<RM08V>-WAERS = 1.
<RM08V>-LIFNR = 1.
<RM08V>-LIFNAME = 1.

ENDLOOP.

LOOP AT IT_RM08V INTO WA_RM08V.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RM08V-ISTBTR, sy-vline,
  WA_RM08V-SOLLBTR, sy-vline,
  WA_RM08V-DIFF, sy-vline,
  WA_RM08V-AMPEL, sy-vline,
  WA_RM08V-EINDT, sy-vline,
  WA_RM08V-LIEFFB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RM08V 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_RM08V 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_RM08V INTO WA_RM08V.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-SATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-SATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field UEBGMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-UEBGMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-UEBGMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field EAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-EAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-EAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field UEBGEAN11
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-UEBGEAN11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-UEBGEAN11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS_DCFL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RM08V-LOGSYS_DCFL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RM08V-LOGSYS_DCFL.
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_RM08V_STR, 
BELNR TYPE STRING,
GJAHR TYPE STRING,
WAERS TYPE STRING,
LIFNR TYPE STRING,
LIFNAME TYPE STRING,
ISTBTR TYPE STRING,
SOLLBTR TYPE STRING,
DIFF TYPE STRING,
AMPEL TYPE STRING,
EINDT TYPE STRING,
LIEFFB TYPE STRING,
LIEFFN TYPE STRING,
LSNR TYPE STRING,
EBELN TYPE STRING,
WERKS TYPE STRING,
XEINS TYPE STRING,
RETPO TYPE STRING,
MATNR TYPE STRING,
SATNR TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
BPMNG TYPE STRING,
BPRME TYPE STRING,
NETPR TYPE STRING,
NETPRC TYPE STRING,
MWSKZ TYPE STRING,
WMWST TYPE STRING,
WRBTRB TYPE STRING,
WRBTRN TYPE STRING,
UEBGMAT TYPE STRING,
TXZ01 TYPE STRING,
IDNLF TYPE STRING,
EAN11 TYPE STRING,
UEBGTXZ01 TYPE STRING,
UEBGIDNLLF TYPE STRING,
UEBGEAN11 TYPE STRING,
MERKMAL1 TYPE STRING,
MERKMAL2 TYPE STRING,
MERKMAL3 TYPE STRING,
SHKZG TYPE STRING,
MERKMAL4 TYPE STRING,
LINEK TYPE STRING,
PUSH_MERK1 TYPE STRING,
PUSH_MERK2 TYPE STRING,
PUSH_MERK3 TYPE STRING,
PUSH_MERK4 TYPE STRING,
PUSH_NETPR TYPE STRING,
PUSH_WERK TYPE STRING,
PUSH_LSNR TYPE STRING,
PUSH_EBELN TYPE STRING,
PUSH_MWSKZ TYPE STRING,
PUSH_RETPO TYPE STRING,
PUSH_EINS TYPE STRING,
PUSH_UEBGM TYPE STRING,
EBELN_DCFL TYPE STRING,
LOGSYS_DCFL TYPE STRING,
EXLIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RM08V_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_RM08V_STR-BELNR sy-vline 
WA_RM08V_STR-GJAHR sy-vline 
WA_RM08V_STR-WAERS sy-vline 
WA_RM08V_STR-LIFNR sy-vline 
WA_RM08V_STR-LIFNAME sy-vline 
WA_RM08V_STR-ISTBTR sy-vline 
WA_RM08V_STR-SOLLBTR sy-vline 
WA_RM08V_STR-DIFF sy-vline 
WA_RM08V_STR-AMPEL sy-vline 
WA_RM08V_STR-EINDT sy-vline 
WA_RM08V_STR-LIEFFB sy-vline 
WA_RM08V_STR-LIEFFN sy-vline 
WA_RM08V_STR-LSNR sy-vline 
WA_RM08V_STR-EBELN sy-vline 
WA_RM08V_STR-WERKS sy-vline 
WA_RM08V_STR-XEINS sy-vline 
WA_RM08V_STR-RETPO sy-vline 
WA_RM08V_STR-MATNR sy-vline 
WA_RM08V_STR-SATNR sy-vline 
WA_RM08V_STR-MENGE sy-vline 
WA_RM08V_STR-MEINS sy-vline 
WA_RM08V_STR-BPMNG sy-vline 
WA_RM08V_STR-BPRME sy-vline 
WA_RM08V_STR-NETPR sy-vline 
WA_RM08V_STR-NETPRC sy-vline 
WA_RM08V_STR-MWSKZ sy-vline 
WA_RM08V_STR-WMWST sy-vline 
WA_RM08V_STR-WRBTRB sy-vline 
WA_RM08V_STR-WRBTRN sy-vline 
WA_RM08V_STR-UEBGMAT sy-vline 
WA_RM08V_STR-TXZ01 sy-vline 
WA_RM08V_STR-IDNLF sy-vline 
WA_RM08V_STR-EAN11 sy-vline 
WA_RM08V_STR-UEBGTXZ01 sy-vline 
WA_RM08V_STR-UEBGIDNLLF sy-vline 
WA_RM08V_STR-UEBGEAN11 sy-vline 
WA_RM08V_STR-MERKMAL1 sy-vline 
WA_RM08V_STR-MERKMAL2 sy-vline 
WA_RM08V_STR-MERKMAL3 sy-vline 
WA_RM08V_STR-SHKZG sy-vline 
WA_RM08V_STR-MERKMAL4 sy-vline 
WA_RM08V_STR-LINEK sy-vline 
WA_RM08V_STR-PUSH_MERK1 sy-vline 
WA_RM08V_STR-PUSH_MERK2 sy-vline 
WA_RM08V_STR-PUSH_MERK3 sy-vline 
WA_RM08V_STR-PUSH_MERK4 sy-vline 
WA_RM08V_STR-PUSH_NETPR sy-vline 
WA_RM08V_STR-PUSH_WERK sy-vline 
WA_RM08V_STR-PUSH_LSNR sy-vline 
WA_RM08V_STR-PUSH_EBELN sy-vline 
WA_RM08V_STR-PUSH_MWSKZ sy-vline 
WA_RM08V_STR-PUSH_RETPO sy-vline 
WA_RM08V_STR-PUSH_EINS sy-vline 
WA_RM08V_STR-PUSH_UEBGM sy-vline 
WA_RM08V_STR-EBELN_DCFL sy-vline 
WA_RM08V_STR-LOGSYS_DCFL sy-vline 
WA_RM08V_STR-EXLIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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