ABAP Select data from SAP table J_3RMLISTDOK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RMLISTDOK 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 J_3RMLISTDOK. 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 J_3RMLISTDOK 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_J_3RMLISTDOK TYPE STANDARD TABLE OF J_3RMLISTDOK,
      WA_J_3RMLISTDOK TYPE J_3RMLISTDOK,
      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: <J_3RMLISTDOK> TYPE J_3RMLISTDOK.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RMLISTDOK.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RMLISTDOK
  INTO TABLE IT_J_3RMLISTDOK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RMLISTDOK
*  INTO TABLE @DATA(IT_J_3RMLISTDOK2).
*--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_J_3RMLISTDOK INDEX 1 INTO DATA(WA_J_3RMLISTDOK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RMLISTDOK ASSIGNING <J_3RMLISTDOK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RMLISTDOK>-XMATNR = 1.
<J_3RMLISTDOK>-BWTAR = 1.
<J_3RMLISTDOK>-WERK = 1.
<J_3RMLISTDOK>-LGORT = 1.
<J_3RMLISTDOK>-CHARG = 1.

ENDLOOP.

LOOP AT IT_J_3RMLISTDOK INTO WA_J_3RMLISTDOK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RMLISTDOK-SOBKZ, sy-vline,
  WA_J_3RMLISTDOK-LINKK, sy-vline,
  WA_J_3RMLISTDOK-J_3RFTYPEDOC, sy-vline,
  WA_J_3RMLISTDOK-BUDAT, sy-vline,
  WA_J_3RMLISTDOK-BELEGNR, sy-vline,
  WA_J_3RMLISTDOK-MZEILE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RMLISTDOK 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_J_3RMLISTDOK 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_J_3RMLISTDOK INTO WA_J_3RMLISTDOK.


*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 MATN1, internal->external for field XMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-XMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-XMATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELEGNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-BELEGNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-BELEGNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field XBELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-XBELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-XBELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field XMEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-XMEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-XMEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR_AG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-KUNNR_AG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-KUNNR_AG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR_WE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-KUNNR_WE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-KUNNR_WE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MFRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RMLISTDOK-MFRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RMLISTDOK-MFRNR.
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_J_3RMLISTDOK_STR, 
XMATNR TYPE STRING,
BWTAR TYPE STRING,
WERK TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
LINKK TYPE STRING,
J_3RFTYPEDOC TYPE STRING,
BUDAT TYPE STRING,
BELEGNR TYPE STRING,
MZEILE TYPE STRING,
BWART TYPE STRING,
XBELNR TYPE STRING,
BUZEI TYPE STRING,
XKTNR TYPE STRING,
VKNTR TYPE STRING,
ITEMS TYPE STRING,
XMEINS TYPE STRING,
XMENSH_IN TYPE STRING,
XMENSH_OUT TYPE STRING,
XDMSHB_IN TYPE STRING,
XDMSHB_OUT TYPE STRING,
XCHANGPRICE TYPE STRING,
XWAERS TYPE STRING,
XWRBT_IN TYPE STRING,
XWRBT_OUT TYPE STRING,
BWAERS TYPE STRING,
HKONT TYPE STRING,
XBLNR TYPE STRING,
EBELN TYPE STRING,
RESWK TYPE STRING,
PSPNR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
VTWEG TYPE STRING,
KUNNR_AG TYPE STRING,
NAME_AG TYPE STRING,
KUNNR_WE TYPE STRING,
NAME_WE TYPE STRING,
LIFNR TYPE STRING,
NAME_LIFNR TYPE STRING,
MFRNR TYPE STRING,
NAME_PRDLIFNR TYPE STRING,
ROUTE TYPE STRING,
COLOR_BANNER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RMLISTDOK_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_J_3RMLISTDOK_STR-XMATNR sy-vline 
WA_J_3RMLISTDOK_STR-BWTAR sy-vline 
WA_J_3RMLISTDOK_STR-WERK sy-vline 
WA_J_3RMLISTDOK_STR-LGORT sy-vline 
WA_J_3RMLISTDOK_STR-CHARG sy-vline 
WA_J_3RMLISTDOK_STR-SOBKZ sy-vline 
WA_J_3RMLISTDOK_STR-LINKK sy-vline 
WA_J_3RMLISTDOK_STR-J_3RFTYPEDOC sy-vline 
WA_J_3RMLISTDOK_STR-BUDAT sy-vline 
WA_J_3RMLISTDOK_STR-BELEGNR sy-vline 
WA_J_3RMLISTDOK_STR-MZEILE sy-vline 
WA_J_3RMLISTDOK_STR-BWART sy-vline 
WA_J_3RMLISTDOK_STR-XBELNR sy-vline 
WA_J_3RMLISTDOK_STR-BUZEI sy-vline 
WA_J_3RMLISTDOK_STR-XKTNR sy-vline 
WA_J_3RMLISTDOK_STR-VKNTR sy-vline 
WA_J_3RMLISTDOK_STR-ITEMS sy-vline 
WA_J_3RMLISTDOK_STR-XMEINS sy-vline 
WA_J_3RMLISTDOK_STR-XMENSH_IN sy-vline 
WA_J_3RMLISTDOK_STR-XMENSH_OUT sy-vline 
WA_J_3RMLISTDOK_STR-XDMSHB_IN sy-vline 
WA_J_3RMLISTDOK_STR-XDMSHB_OUT sy-vline 
WA_J_3RMLISTDOK_STR-XCHANGPRICE sy-vline 
WA_J_3RMLISTDOK_STR-XWAERS sy-vline 
WA_J_3RMLISTDOK_STR-XWRBT_IN sy-vline 
WA_J_3RMLISTDOK_STR-XWRBT_OUT sy-vline 
WA_J_3RMLISTDOK_STR-BWAERS sy-vline 
WA_J_3RMLISTDOK_STR-HKONT sy-vline 
WA_J_3RMLISTDOK_STR-XBLNR sy-vline 
WA_J_3RMLISTDOK_STR-EBELN sy-vline 
WA_J_3RMLISTDOK_STR-RESWK sy-vline 
WA_J_3RMLISTDOK_STR-PSPNR sy-vline 
WA_J_3RMLISTDOK_STR-VBELN sy-vline 
WA_J_3RMLISTDOK_STR-POSNR sy-vline 
WA_J_3RMLISTDOK_STR-VTWEG sy-vline 
WA_J_3RMLISTDOK_STR-KUNNR_AG sy-vline 
WA_J_3RMLISTDOK_STR-NAME_AG sy-vline 
WA_J_3RMLISTDOK_STR-KUNNR_WE sy-vline 
WA_J_3RMLISTDOK_STR-NAME_WE sy-vline 
WA_J_3RMLISTDOK_STR-LIFNR sy-vline 
WA_J_3RMLISTDOK_STR-NAME_LIFNR sy-vline 
WA_J_3RMLISTDOK_STR-MFRNR sy-vline 
WA_J_3RMLISTDOK_STR-NAME_PRDLIFNR sy-vline 
WA_J_3RMLISTDOK_STR-ROUTE sy-vline 
WA_J_3RMLISTDOK_STR-COLOR_BANNER sy-vline      INTO ld_text SEPARATED BY SPACE.

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