ABAP Select data from SAP table RMPRP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMPRP
*  INTO TABLE @DATA(IT_RMPRP2).
*--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_RMPRP INDEX 1 INTO DATA(WA_RMPRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMPRP>-PROPR = 1.
<RMPRP>-KTEXT = 1.
<RMPRP>-FTEXT = 1.
<RMPRP>-KZEXI = 1.
<RMPRP>-KZVOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMPRP-TEXT1, sy-vline,
  WA_RMPRP-TEXT2, sy-vline,
  WA_RMPRP-TEXT3, sy-vline,
  WA_RMPRP-TEXT4, sy-vline,
  WA_RMPRP-TEXT5, sy-vline,
  WA_RMPRP-TEXT6, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMPRP 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_RMPRP 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_RMPRP INTO WA_RMPRP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RMPRP_STR, 
PROPR TYPE STRING,
KTEXT TYPE STRING,
FTEXT TYPE STRING,
KZEXI TYPE STRING,
KZVOR TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
TEXT3 TYPE STRING,
TEXT4 TYPE STRING,
TEXT5 TYPE STRING,
TEXT6 TYPE STRING,
TEXT7 TYPE STRING,
TEXT8 TYPE STRING,
VORPR TYPE STRING,
MODAW TYPE STRING,
MODAV TYPE STRING,
PRMOD TYPE STRING,
ALPHA TYPE STRING,
BETA1 TYPE STRING,
GAMMA TYPE STRING,
DELTA TYPE STRING,
EPSIL TYPE STRING,
PERKZ TYPE STRING,
PERAN TYPE STRING,
PERIN TYPE STRING,
PERIO TYPE STRING,
ANZPR TYPE STRING,
FIMON TYPE STRING,
LGRAD TYPE STRING,
SIGGR TYPE STRING,
OPGRA TYPE STRING,
ERREL TYPE STRING,
KFALG TYPE STRING,
KFTAB TYPE STRING,
KZINI TYPE STRING,
KZPAR TYPE STRING,
VORPF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMPRP_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_RMPRP_STR-PROPR sy-vline 
WA_RMPRP_STR-KTEXT sy-vline 
WA_RMPRP_STR-FTEXT sy-vline 
WA_RMPRP_STR-KZEXI sy-vline 
WA_RMPRP_STR-KZVOR sy-vline 
WA_RMPRP_STR-TEXT1 sy-vline 
WA_RMPRP_STR-TEXT2 sy-vline 
WA_RMPRP_STR-TEXT3 sy-vline 
WA_RMPRP_STR-TEXT4 sy-vline 
WA_RMPRP_STR-TEXT5 sy-vline 
WA_RMPRP_STR-TEXT6 sy-vline 
WA_RMPRP_STR-TEXT7 sy-vline 
WA_RMPRP_STR-TEXT8 sy-vline 
WA_RMPRP_STR-VORPR sy-vline 
WA_RMPRP_STR-MODAW sy-vline 
WA_RMPRP_STR-MODAV sy-vline 
WA_RMPRP_STR-PRMOD sy-vline 
WA_RMPRP_STR-ALPHA sy-vline 
WA_RMPRP_STR-BETA1 sy-vline 
WA_RMPRP_STR-GAMMA sy-vline 
WA_RMPRP_STR-DELTA sy-vline 
WA_RMPRP_STR-EPSIL sy-vline 
WA_RMPRP_STR-PERKZ sy-vline 
WA_RMPRP_STR-PERAN sy-vline 
WA_RMPRP_STR-PERIN sy-vline 
WA_RMPRP_STR-PERIO sy-vline 
WA_RMPRP_STR-ANZPR sy-vline 
WA_RMPRP_STR-FIMON sy-vline 
WA_RMPRP_STR-LGRAD sy-vline 
WA_RMPRP_STR-SIGGR sy-vline 
WA_RMPRP_STR-OPGRA sy-vline 
WA_RMPRP_STR-ERREL sy-vline 
WA_RMPRP_STR-KFALG sy-vline 
WA_RMPRP_STR-KFTAB sy-vline 
WA_RMPRP_STR-KZINI sy-vline 
WA_RMPRP_STR-KZPAR sy-vline 
WA_RMPRP_STR-VORPF sy-vline      INTO ld_text SEPARATED BY SPACE.

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