ABAP Select data from SAP table RMPU_VRESB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMPU_VRESB
*  INTO TABLE @DATA(IT_RMPU_VRESB2).
*--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_RMPU_VRESB INDEX 1 INTO DATA(WA_RMPU_VRESB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMPU_VRESB>-MANDT = 1.
<RMPU_VRESB>-RSNUM = 1.
<RMPU_VRESB>-RSPOS = 1.
<RMPU_VRESB>-RSART = 1.
<RMPU_VRESB>-BDART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMPU_VRESB-XWAOK, sy-vline,
  WA_RMPU_VRESB-MATNR, sy-vline,
  WA_RMPU_VRESB-WERKS, sy-vline,
  WA_RMPU_VRESB-LGORT, sy-vline,
  WA_RMPU_VRESB-PRVBE, sy-vline,
  WA_RMPU_VRESB-CHARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMPU_VRESB 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_RMPU_VRESB 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_RMPU_VRESB INTO WA_RMPU_VRESB.


*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 MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RMPU_VRESB-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPU_VRESB-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_RMPU_VRESB-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMPU_VRESB-PSPEL.
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_RMPU_VRESB_STR, 
MANDT TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,
BDART TYPE STRING,
XWAOK TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
PRVBE TYPE STRING,
CHARG TYPE STRING,
PLPLA TYPE STRING,
SOBKZ TYPE STRING,
BDTER TYPE STRING,
BDMNG TYPE STRING,
MEINS TYPE STRING,
SHKZG TYPE STRING,
ENMNG TYPE STRING,
ERFME TYPE STRING,
PLNUM TYPE STRING,
AUFNR TYPE STRING,
BAUGR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
BWART TYPE STRING,
UMWRK TYPE STRING,
UMLGO TYPE STRING,
POSTP TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
SBTER TYPE STRING,
VERTI TYPE STRING,
BEIKZ TYPE STRING,
KZVBR TYPE STRING,
AUFPL TYPE STRING,
PLNFL TYPE STRING,
VORNR TYPE STRING,
APLZL TYPE STRING,
RGEKZ TYPE STRING,
VMENG TYPE STRING,
BERKZ TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
TBMNG TYPE STRING,
KZKUP TYPE STRING,
AFPOS TYPE STRING,
NO_DISP TYPE STRING,
BDZTP TYPE STRING,
FUNCT TYPE STRING,
KZECH TYPE STRING,
SCHGT TYPE STRING,
LIFNR TYPE STRING,
KBNKZ TYPE STRING,
PSPEL TYPE STRING,
VRPLA TYPE STRING,
KZBWS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMPU_VRESB_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_RMPU_VRESB_STR-MANDT sy-vline 
WA_RMPU_VRESB_STR-RSNUM sy-vline 
WA_RMPU_VRESB_STR-RSPOS sy-vline 
WA_RMPU_VRESB_STR-RSART sy-vline 
WA_RMPU_VRESB_STR-BDART sy-vline 
WA_RMPU_VRESB_STR-XWAOK sy-vline 
WA_RMPU_VRESB_STR-MATNR sy-vline 
WA_RMPU_VRESB_STR-WERKS sy-vline 
WA_RMPU_VRESB_STR-LGORT sy-vline 
WA_RMPU_VRESB_STR-PRVBE sy-vline 
WA_RMPU_VRESB_STR-CHARG sy-vline 
WA_RMPU_VRESB_STR-PLPLA sy-vline 
WA_RMPU_VRESB_STR-SOBKZ sy-vline 
WA_RMPU_VRESB_STR-BDTER sy-vline 
WA_RMPU_VRESB_STR-BDMNG sy-vline 
WA_RMPU_VRESB_STR-MEINS sy-vline 
WA_RMPU_VRESB_STR-SHKZG sy-vline 
WA_RMPU_VRESB_STR-ENMNG sy-vline 
WA_RMPU_VRESB_STR-ERFME sy-vline 
WA_RMPU_VRESB_STR-PLNUM sy-vline 
WA_RMPU_VRESB_STR-AUFNR sy-vline 
WA_RMPU_VRESB_STR-BAUGR sy-vline 
WA_RMPU_VRESB_STR-KDAUF sy-vline 
WA_RMPU_VRESB_STR-KDPOS sy-vline 
WA_RMPU_VRESB_STR-KDEIN sy-vline 
WA_RMPU_VRESB_STR-BWART sy-vline 
WA_RMPU_VRESB_STR-UMWRK sy-vline 
WA_RMPU_VRESB_STR-UMLGO sy-vline 
WA_RMPU_VRESB_STR-POSTP sy-vline 
WA_RMPU_VRESB_STR-UMREZ sy-vline 
WA_RMPU_VRESB_STR-UMREN sy-vline 
WA_RMPU_VRESB_STR-SBTER sy-vline 
WA_RMPU_VRESB_STR-VERTI sy-vline 
WA_RMPU_VRESB_STR-BEIKZ sy-vline 
WA_RMPU_VRESB_STR-KZVBR sy-vline 
WA_RMPU_VRESB_STR-AUFPL sy-vline 
WA_RMPU_VRESB_STR-PLNFL sy-vline 
WA_RMPU_VRESB_STR-VORNR sy-vline 
WA_RMPU_VRESB_STR-APLZL sy-vline 
WA_RMPU_VRESB_STR-RGEKZ sy-vline 
WA_RMPU_VRESB_STR-VMENG sy-vline 
WA_RMPU_VRESB_STR-BERKZ sy-vline 
WA_RMPU_VRESB_STR-LGNUM sy-vline 
WA_RMPU_VRESB_STR-LGTYP sy-vline 
WA_RMPU_VRESB_STR-LGPLA sy-vline 
WA_RMPU_VRESB_STR-TBMNG sy-vline 
WA_RMPU_VRESB_STR-KZKUP sy-vline 
WA_RMPU_VRESB_STR-AFPOS sy-vline 
WA_RMPU_VRESB_STR-NO_DISP sy-vline 
WA_RMPU_VRESB_STR-BDZTP sy-vline 
WA_RMPU_VRESB_STR-FUNCT sy-vline 
WA_RMPU_VRESB_STR-KZECH sy-vline 
WA_RMPU_VRESB_STR-SCHGT sy-vline 
WA_RMPU_VRESB_STR-LIFNR sy-vline 
WA_RMPU_VRESB_STR-KBNKZ sy-vline 
WA_RMPU_VRESB_STR-PSPEL sy-vline 
WA_RMPU_VRESB_STR-VRPLA sy-vline 
WA_RMPU_VRESB_STR-KZBWS sy-vline      INTO ld_text SEPARATED BY SPACE.

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