ABAP Select data from SAP table V_RFMATGRP_PRODT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_RFMATGRP_PRODT
*  INTO TABLE @DATA(IT_V_RFMATGRP_PRODT2).
*--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_V_RFMATGRP_PRODT INDEX 1 INTO DATA(WA_V_RFMATGRP_PRODT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_RFMATGRP_PRODT>-MANDT = 1.
<V_RFMATGRP_PRODT>-MATNR = 1.
<V_RFMATGRP_PRODT>-HIER_ID = 1.
<V_RFMATGRP_PRODT>-NODE = 1.
<V_RFMATGRP_PRODT>-DATE_FROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_RFMATGRP_PRODT-TIMESTAMP, sy-vline,
  WA_V_RFMATGRP_PRODT-HIERNODE1, sy-vline,
  WA_V_RFMATGRP_PRODT-HIERNODE2, sy-vline,
  WA_V_RFMATGRP_PRODT-HIERNODE3, sy-vline,
  WA_V_RFMATGRP_PRODT-HIERNODE4, sy-vline,
  WA_V_RFMATGRP_PRODT-HIERNODE5, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_RFMATGRP_PRODT 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_V_RFMATGRP_PRODT 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_V_RFMATGRP_PRODT INTO WA_V_RFMATGRP_PRODT.


*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_V_RFMATGRP_PRODT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_RFMATGRP_PRODT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_V_RFMATGRP_PRODT-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_RFMATGRP_PRODT-SPRAS.
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_V_RFMATGRP_PRODT_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
HIER_ID TYPE STRING,
NODE TYPE STRING,
DATE_FROM TYPE STRING,
TIMESTAMP TYPE STRING,
HIERNODE1 TYPE STRING,
HIERNODE2 TYPE STRING,
HIERNODE3 TYPE STRING,
HIERNODE4 TYPE STRING,
HIERNODE5 TYPE STRING,
HIERNODE6 TYPE STRING,
HIERNODE7 TYPE STRING,
HIERNODE8 TYPE STRING,
HIERNODE9 TYPE STRING,
HIERNODE10 TYPE STRING,
SPRAS TYPE STRING,
MAKTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_RFMATGRP_PRODT_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_V_RFMATGRP_PRODT_STR-MANDT sy-vline 
WA_V_RFMATGRP_PRODT_STR-MATNR sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIER_ID sy-vline 
WA_V_RFMATGRP_PRODT_STR-NODE sy-vline 
WA_V_RFMATGRP_PRODT_STR-DATE_FROM sy-vline 
WA_V_RFMATGRP_PRODT_STR-TIMESTAMP sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE1 sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE2 sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE3 sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE4 sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE5 sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE6 sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE7 sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE8 sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE9 sy-vline 
WA_V_RFMATGRP_PRODT_STR-HIERNODE10 sy-vline 
WA_V_RFMATGRP_PRODT_STR-SPRAS sy-vline 
WA_V_RFMATGRP_PRODT_STR-MAKTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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