ABAP Select data from SAP table MSR_RFC_RO_PARTY_COMV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSR_RFC_RO_PARTY_COMV
*  INTO TABLE @DATA(IT_MSR_RFC_RO_PARTY_COMV2).
*--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_MSR_RFC_RO_PARTY_COMV INDEX 1 INTO DATA(WA_MSR_RFC_RO_PARTY_COMV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSR_RFC_RO_PARTY_COMV>-ITM_NUMBER = 1.
<MSR_RFC_RO_PARTY_COMV>-PARTN_ROLE = 1.
<MSR_RFC_RO_PARTY_COMV>-PARTN_NUMB = 1.
<MSR_RFC_RO_PARTY_COMV>-NAME = 1.
<MSR_RFC_RO_PARTY_COMV>-NAME2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSR_RFC_RO_PARTY_COMV-STREET, sy-vline,
  WA_MSR_RFC_RO_PARTY_COMV-HOUSENUM, sy-vline,
  WA_MSR_RFC_RO_PARTY_COMV-POSTL_CODE, sy-vline,
  WA_MSR_RFC_RO_PARTY_COMV-CITY, sy-vline,
  WA_MSR_RFC_RO_PARTY_COMV-REGION, sy-vline,
  WA_MSR_RFC_RO_PARTY_COMV-COUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSR_RFC_RO_PARTY_COMV 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_MSR_RFC_RO_PARTY_COMV 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_MSR_RFC_RO_PARTY_COMV INTO WA_MSR_RFC_RO_PARTY_COMV.


*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 PARVW, internal->external for field PARTN_ROLE
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_MSR_RFC_RO_PARTY_COMV-PARTN_ROLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSR_RFC_RO_PARTY_COMV-PARTN_ROLE.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_MSR_RFC_RO_PARTY_COMV-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MSR_RFC_RO_PARTY_COMV-EMAIL.
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_MSR_RFC_RO_PARTY_COMV_STR, 
ITM_NUMBER TYPE STRING,
PARTN_ROLE TYPE STRING,
PARTN_NUMB TYPE STRING,
NAME TYPE STRING,
NAME2 TYPE STRING,
STREET TYPE STRING,
HOUSENUM TYPE STRING,
POSTL_CODE TYPE STRING,
CITY TYPE STRING,
REGION TYPE STRING,
COUNTRY TYPE STRING,
PBOX TYPE STRING,
PBOX_PCODE TYPE STRING,
LANGU_INT TYPE STRING,
LANGU_EXT TYPE STRING,
TELEPHONE TYPE STRING,
TEL_EXT TYPE STRING,
FAX_NUMBER TYPE STRING,
FAX_EXT TYPE STRING,
EMAIL TYPE STRING,
MOBIL_NUM TYPE STRING,
TAXJURCODE TYPE STRING,
TITLE TYPE STRING,
CITY2 TYPE STRING,
STREET_H_NUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSR_RFC_RO_PARTY_COMV_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_MSR_RFC_RO_PARTY_COMV_STR-ITM_NUMBER sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-PARTN_ROLE sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-PARTN_NUMB sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-NAME sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-NAME2 sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-STREET sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-HOUSENUM sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-POSTL_CODE sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-CITY sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-REGION sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-COUNTRY sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-PBOX sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-PBOX_PCODE sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-LANGU_INT sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-LANGU_EXT sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-TELEPHONE sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-TEL_EXT sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-FAX_NUMBER sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-FAX_EXT sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-EMAIL sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-MOBIL_NUM sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-TAXJURCODE sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-TITLE sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-CITY2 sy-vline 
WA_MSR_RFC_RO_PARTY_COMV_STR-STREET_H_NUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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